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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Anomaly detection window functions."><title>common_function::scalars::anomaly - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module anomaly</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module anomaly</a></h2><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#minimum-samples" title="Minimum Samples">Minimum Samples</a></li><li><a href="#return-values" title="Return Values">Return Values</a></li><li><a href="#window-frame-semantics" title="Window Frame Semantics">Window Frame Semantics</a></li><li><a href="#performance-notes" title="Performance Notes">Performance Notes</a></li></ul><h3><a href="#modules">Module Items</a></h3><ul class="block"><li><a href="#modules" title="Modules">Modules</a></li><li><a href="#structs" title="Structs">Structs</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In common_<wbr>function::<wbr>scalars</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../index.html">common_function</a>::<wbr><a href="../index.html">scalars</a></div><h1>Module <span>anomaly</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../src/common_function/scalars/anomaly/mod.rs.html#15-90">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Anomaly detection window functions.</p>
<p>This module provides statistical anomaly scoring functions that operate
as window UDFs (User Defined Window Functions):</p>
<ul>
<li><code>anomaly_score_mad(value)</code> — MAD-based scoring</li>
<li><code>anomaly_score_iqr(value, k)</code> — IQR-based scoring with configurable fence multiplier</li>
<li><code>anomaly_score_zscore(value)</code> — Z-Score-based scoring</li>
</ul>
<p>These functions return a floating-point anomaly score rather than a boolean,
allowing users to set their own threshold via <code>WHERE score &gt; N</code>.</p>
<h3 id="minimum-samples"><a class="doc-anchor" href="#minimum-samples">§</a>Minimum Samples</h3>
<p>Each function has its own minimum based on statistical validity:</p>
<div><table><thead><tr><th>Function</th><th>min_samples</th><th>Rationale</th></tr></thead><tbody>
<tr><td><code>anomaly_score_zscore</code></td><td>2</td><td>stddev requires n &gt;= 2 (aligned with <code>STDDEV_SAMP</code>)</td></tr>
<tr><td><code>anomaly_score_mad</code></td><td>3</td><td>n &lt;= 2 makes MAD almost always 0, yielding spurious +inf</td></tr>
<tr><td><code>anomaly_score_iqr</code></td><td>3</td><td>linear-interpolated Q1 != Q3 is possible at n &gt;= 3</td></tr>
</tbody></table>
</div><h3 id="return-values"><a class="doc-anchor" href="#return-values">§</a>Return Values</h3><div><table><thead><tr><th>Condition</th><th>zscore</th><th>mad</th><th>iqr</th><th>Result</th></tr></thead><tbody>
<tr><td>insufficient valid points</td><td>n &lt; 2</td><td>n &lt; 3</td><td>n &lt; 3</td><td><code>NULL</code></td></tr>
<tr><td>stddev / MAD / IQR = 0, value = center</td><td>distance = 0</td><td>distance = 0</td><td>on fence</td><td><code>0.0</code></td></tr>
<tr><td>stddev / MAD / IQR = 0, value ≠ center</td><td>distance &gt; 0</td><td>distance &gt; 0</td><td>outside fence</td><td><code>+inf</code></td></tr>
<tr><td>normal case</td><td>stddev &gt; 0</td><td>MAD &gt; 0</td><td>IQR &gt; 0</td><td>finite positive</td></tr>
</tbody></table>
</div><h3 id="window-frame-semantics"><a class="doc-anchor" href="#window-frame-semantics">§</a>Window Frame Semantics</h3>
<p>The functions score the <strong>current row</strong> in the partition, regardless of
window frame type. This works correctly for all frame specifications:</p>
<div class="example-wrap"><pre class="language-sql"><code>-- Trailing window
anomaly_score_mad(cpu) OVER (ORDER BY ts ROWS 100 PRECEDING)
-- Centered window
anomaly_score_mad(cpu) OVER (ORDER BY ts ROWS BETWEEN 50 PRECEDING AND 50 FOLLOWING)</code></pre></div>
<p>Internally, a row counter tracks which partition row is being evaluated.
The <code>range</code> parameter determines only which rows participate in computing
the window statistics (median, MAD, IQR, mean, stddev).</p>
<h3 id="performance-notes"><a class="doc-anchor" href="#performance-notes">§</a>Performance Notes</h3>
<p>Current implementation uses per-row evaluation with O(N × W) complexity
where N is the partition size and W is the window size. This is acceptable
for typical window sizes (W ≤ a few thousand).</p>
<p>Future optimizations could include:</p>
<ul>
<li>Incremental computation using order-statistic trees or two-heap median
maintenance, reducing to O(N × log W)</li>
<li>Batch <code>evaluate_all</code> for fixed-size windows</li>
</ul>
</div></details><h2 id="modules" class="section-header">Modules<a href="#modules" class="anchor">§</a></h2><dl class="item-table"><dt><a class="mod" href="iqr/index.html" title="mod common_function::scalars::anomaly::iqr">iqr</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd><code>anomaly_score_iqr</code> window function — IQR-based anomaly scoring.</dd><dt><a class="mod" href="mad/index.html" title="mod common_function::scalars::anomaly::mad">mad</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd><code>anomaly_score_mad</code> window function — MAD-based anomaly scoring.</dd><dt><a class="mod" href="utils/index.html" title="mod common_function::scalars::anomaly::utils">utils</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Shared statistical utilities for anomaly detection window functions.</dd><dt><a class="mod" href="zscore/index.html" title="mod common_function::scalars::anomaly::zscore">zscore</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd><code>anomaly_score_zscore</code> window function — Z-Score-based anomaly scoring.</dd></dl><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.AnomalyFunction.html" title="struct common_function::scalars::anomaly::AnomalyFunction">Anomaly<wbr>Function</a></dt></dl></section></div></main></body></html>

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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Minimum valid samples for IQR (linear-interpolated Q1 != Q3 is possible at n &#62;= 3)."><title>MIN_SAMPLES in common_function::scalars::anomaly::iqr - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc constant"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">MIN_SAMPLES</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly::<wbr>iqr</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a>::<wbr><a href="index.html">iqr</a></div><h1>Constant <span class="constant">MIN_<wbr>SAMPLES</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/iqr.rs.html#43">Source</a> </span></div><pre class="rust item-decl"><code>const MIN_SAMPLES: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a> = 3;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Minimum valid samples for IQR (linear-interpolated Q1 != Q3 is possible at n &gt;= 3).</p>
</div></details></section></div></main></body></html>

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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="`anomaly_score_iqr` window function — IQR-based anomaly scoring."><title>common_function::scalars::anomaly::iqr - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module iqr</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module iqr</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#constants" title="Constants">Constants</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a></div><h1>Module <span>iqr</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/iqr.rs.html#15-315">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p><code>anomaly_score_iqr</code> window function — IQR-based anomaly scoring.</p>
<p>Algorithm:</p>
<ul>
<li>Compute Q1 (25th percentile) and Q3 (75th percentile)</li>
<li>IQR = Q3 - Q1</li>
<li>Lower fence = Q1 - k * IQR, Upper fence = Q3 + k * IQR</li>
<li>If value is outside fences, score = |distance to nearest fence| / IQR</li>
<li>Otherwise, score = 0.0</li>
</ul>
<p>When IQR = 0 (constant quartiles), returns 0.0 if value is on the fence,
or +inf if value is outside.</p>
</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.AnomalyScoreIqr.html" title="struct common_function::scalars::anomaly::iqr::AnomalyScoreIqr">Anomaly<wbr>Score<wbr>Iqr</a></dt><dt><a class="struct" href="struct.AnomalyScoreIqrEvaluator.html" title="struct common_function::scalars::anomaly::iqr::AnomalyScoreIqrEvaluator">Anomaly<wbr>Score<wbr>IqrEvaluator</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt></dl><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.MIN_SAMPLES.html" title="constant common_function::scalars::anomaly::iqr::MIN_SAMPLES">MIN_<wbr>SAMPLES</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Minimum valid samples for IQR (linear-interpolated Q1 != Q3 is possible at n &gt;= 3).</dd></dl></section></div></main></body></html>

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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="MAD consistency constant for normal distribution: `1 / Φ⁻¹(3/4) ≈ 1.4826`"><title>MAD_CONSISTENCY_CONSTANT in common_function::scalars::anomaly::mad - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc constant"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">MAD_CONSISTENCY_CONSTANT</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly::<wbr>mad</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a>::<wbr><a href="index.html">mad</a></div><h1>Constant <span class="constant">MAD_<wbr>CONSISTENCY_<wbr>CONSTANT</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/mad.rs.html#44">Source</a> </span></div><pre class="rust item-decl"><code>const MAD_CONSISTENCY_CONSTANT: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a> = 1.4826;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>MAD consistency constant for normal distribution: <code>1 / Φ⁻¹(3/4) ≈ 1.4826</code></p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Minimum valid samples for MAD (n &#60;= 2 makes MAD almost always 0, yielding spurious +inf)."><title>MIN_SAMPLES in common_function::scalars::anomaly::mad - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc constant"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">MIN_SAMPLES</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly::<wbr>mad</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a>::<wbr><a href="index.html">mad</a></div><h1>Constant <span class="constant">MIN_<wbr>SAMPLES</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/mad.rs.html#41">Source</a> </span></div><pre class="rust item-decl"><code>const MIN_SAMPLES: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a> = 3;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Minimum valid samples for MAD (n &lt;= 2 makes MAD almost always 0, yielding spurious +inf).</p>
</div></details></section></div></main></body></html>

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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="`anomaly_score_mad` window function — MAD-based anomaly scoring."><title>common_function::scalars::anomaly::mad - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module mad</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module mad</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#constants" title="Constants">Constants</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a></div><h1>Module <span>mad</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/mad.rs.html#15-258">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p><code>anomaly_score_mad</code> window function — MAD-based anomaly scoring.</p>
<p>Algorithm: <code>score = |x - median(window)| / (MAD * 1.4826)</code>
where <code>MAD = median(|xi - median(window)|)</code></p>
<p>When MAD = 0 (majority-constant window), returns 0.0 if value equals
median, or +inf otherwise.</p>
</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.AnomalyScoreMad.html" title="struct common_function::scalars::anomaly::mad::AnomalyScoreMad">Anomaly<wbr>Score<wbr>Mad</a></dt><dt><a class="struct" href="struct.AnomalyScoreMadEvaluator.html" title="struct common_function::scalars::anomaly::mad::AnomalyScoreMadEvaluator">Anomaly<wbr>Score<wbr>MadEvaluator</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt></dl><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.MAD_CONSISTENCY_CONSTANT.html" title="constant common_function::scalars::anomaly::mad::MAD_CONSISTENCY_CONSTANT">MAD_<wbr>CONSISTENCY_<wbr>CONSTANT</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>MAD consistency constant for normal distribution: <code>1 / Φ⁻¹(3/4) ≈ 1.4826</code></dd><dt><a class="constant" href="constant.MIN_SAMPLES.html" title="constant common_function::scalars::anomaly::mad::MIN_SAMPLES">MIN_<wbr>SAMPLES</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Minimum valid samples for MAD (n &lt;= 2 makes MAD almost always 0, yielding spurious +inf).</dd></dl></section></div></main></body></html>

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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Compute a non-negative anomaly score ratio with stable zero-denominator semantics."><title>anomaly_ratio in common_function::scalars::anomaly::utils - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">anomaly_ratio</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly::<wbr>utils</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a>::<wbr><a href="index.html">utils</a></div><h1>Function <span class="fn">anomaly_<wbr>ratio</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/utils.rs.html#98-104">Source</a> </span></div><pre class="rust item-decl"><code>pub fn anomaly_ratio(distance: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>, scale: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Compute a non-negative anomaly score ratio with stable zero-denominator semantics.</p>
<p>When <code>scale == 0.0</code>:</p>
<ul>
<li>returns <code>0.0</code> if <code>distance == 0.0</code> (on-center value),</li>
<li>returns <code>+inf</code> if <code>distance &gt; 0.0</code> (off-center value under zero spread).</li>
</ul>
</div></details></section></div></main></body></html>

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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Cast an ArrayRef to Float64. Returns the array as-is if already Float64."><title>cast_to_f64 in common_function::scalars::anomaly::utils - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">cast_to_f64</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly::<wbr>utils</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a>::<wbr><a href="index.html">utils</a></div><h1>Function <span class="fn">cast_<wbr>to_<wbr>f64</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/utils.rs.html#25-31">Source</a> </span></div><pre class="rust item-decl"><code>pub fn cast_to_f64(array: &amp;ArrayRef) -&gt; Result&lt;ArrayRef&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Cast an ArrayRef to Float64. Returns the array as-is if already Float64.</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Collect valid f64 values from a Float64Array within the given range, skipping NULL, NaN, and ±Inf values."><title>collect_window_values in common_function::scalars::anomaly::utils - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">collect_window_values</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly::<wbr>utils</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a>::<wbr><a href="index.html">utils</a></div><h1>Function <span class="fn">collect_<wbr>window_<wbr>values</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/utils.rs.html#35-46">Source</a> </span></div><pre class="rust item-decl"><code>pub fn collect_window_values(
array: &amp;Float64Array,
range: &amp;<a class="struct" href="https://doc.rust-lang.org/nightly/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt;,
) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Collect valid f64 values from a Float64Array within the given range,
skipping NULL, NaN, and ±Inf values.</p>
</div></details></section></div></main></body></html>

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<p>The input slice will be partially reordered.
Returns <code>None</code> if the slice is empty.</p>
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<p><code>p</code> should be in [0.0, 1.0]. The slice must be sorted in ascending order.
Returns <code>None</code> if the slice is empty.</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Shared statistical utilities for anomaly detection window functions."><title>common_function::scalars::anomaly::utils - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module utils</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module utils</a></h2><h3><a href="#functions">Module Items</a></h3><ul class="block"><li><a href="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a></div><h1>Module <span>utils</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/utils.rs.html#15-168">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Shared statistical utilities for anomaly detection window functions.</p>
</div></details><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.anomaly_ratio.html" title="fn common_function::scalars::anomaly::utils::anomaly_ratio">anomaly_<wbr>ratio</a></dt><dd>Compute a non-negative anomaly score ratio with stable zero-denominator semantics.</dd><dt><a class="fn" href="fn.cast_to_f64.html" title="fn common_function::scalars::anomaly::utils::cast_to_f64">cast_<wbr>to_<wbr>f64</a></dt><dd>Cast an ArrayRef to Float64. Returns the array as-is if already Float64.</dd><dt><a class="fn" href="fn.collect_window_values.html" title="fn common_function::scalars::anomaly::utils::collect_window_values">collect_<wbr>window_<wbr>values</a></dt><dd>Collect valid f64 values from a Float64Array within the given range,
skipping NULL, NaN, and ±Inf values.</dd><dt><a class="fn" href="fn.median_f64.html" title="fn common_function::scalars::anomaly::utils::median_f64">median_<wbr>f64</a></dt><dd>Compute median of a mutable slice using O(n) selection algorithm.</dd><dt><a class="fn" href="fn.percentile_sorted.html" title="fn common_function::scalars::anomaly::utils::percentile_sorted">percentile_<wbr>sorted</a></dt><dd>Compute percentile on a sorted slice using linear interpolation.</dd></dl></section></div></main></body></html>

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window.SIDEBAR_ITEMS = {"fn":["anomaly_ratio","cast_to_f64","collect_window_values","median_f64","percentile_sorted"]};

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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Minimum valid samples for zscore (stddev requires n &#62;= 2)."><title>MIN_SAMPLES in common_function::scalars::anomaly::zscore - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc constant"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">MIN_SAMPLES</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly::<wbr>zscore</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a>::<wbr><a href="index.html">zscore</a></div><h1>Constant <span class="constant">MIN_<wbr>SAMPLES</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/zscore.rs.html#38">Source</a> </span></div><pre class="rust item-decl"><code>const MIN_SAMPLES: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a> = 2;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Minimum valid samples for zscore (stddev requires n &gt;= 2).</p>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="`anomaly_score_zscore` window function — Z-Score-based anomaly scoring."><title>common_function::scalars::anomaly::zscore - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="common_function" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module zscore</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../common_function/index.html">common_<wbr>function</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module zscore</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#constants" title="Constants">Constants</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In common_<wbr>function::<wbr>scalars::<wbr>anomaly</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">common_function</a>::<wbr><a href="../../index.html">scalars</a>::<wbr><a href="../index.html">anomaly</a></div><h1>Module <span>zscore</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/common_function/scalars/anomaly/zscore.rs.html#15-336">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p><code>anomaly_score_zscore</code> window function — Z-Score-based anomaly scoring.</p>
<p>Algorithm: <code>score = |x - mean(window)| / stddev(window)</code></p>
<p>When stddev = 0 (constant window), returns 0.0 if value equals mean,
or +inf otherwise.</p>
</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.AnomalyScoreZscore.html" title="struct common_function::scalars::anomaly::zscore::AnomalyScoreZscore">Anomaly<wbr>Score<wbr>Zscore</a></dt><dt><a class="struct" href="struct.AnomalyScoreZscoreEvaluator.html" title="struct common_function::scalars::anomaly::zscore::AnomalyScoreZscoreEvaluator">Anomaly<wbr>Score<wbr>Zscore<wbr>Evaluator</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt></dl><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.MIN_SAMPLES.html" title="constant common_function::scalars::anomaly::zscore::MIN_SAMPLES">MIN_<wbr>SAMPLES</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Minimum valid samples for zscore (stddev requires n &gt;= 2).</dd></dl></section></div></main></body></html>

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