kmath/kmath-stat/space.kscience.kmath.samplers/-kemp-small-mean-poisson-sampler/index.html

98 lines
12 KiB
HTML
Raw Normal View History

<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1" charset="UTF-8">
<title>KempSmallMeanPoissonSampler</title>
</head><body><link href="../../../images/logo-icon.svg" rel="icon" type="image/svg"><script>var pathToRoot = "../../../";</script>
<script type="text/javascript" src="../../../scripts/sourceset_dependencies.js" async></script><link href="../../../styles/style.css" rel="Stylesheet"><link href="../../../styles/jetbrains-mono.css" rel="Stylesheet"><link href="../../../styles/main.css" rel="Stylesheet"><link href="../../../styles/prism.css" rel="Stylesheet"><link href="../../../styles/logo-styles.css" rel="Stylesheet"><script type="text/javascript" src="../../../scripts/clipboard.js" async></script><script type="text/javascript" src="../../../scripts/navigation-loader.js" async></script><script type="text/javascript" src="../../../scripts/platform-content-handler.js" async></script><script type="text/javascript" src="../../../scripts/main.js" defer></script><script type="text/javascript" src="../../../scripts/prism.js" async></script><script>const storage = localStorage.getItem("dokka-dark-mode")
const savedDarkMode = storage ? JSON.parse(storage) : false
if(savedDarkMode === true){
document.getElementsByTagName("html")[0].classList.add("theme-dark")
}</script>
<div class="navigation-wrapper" id="navigation-wrapper">
<div id="leftToggler"><span class="icon-toggler"></span></div>
<div class="library-name"><a href="../../../index.html"><span>kmath</span></a></div>
<div></div>
<div class="pull-right d-flex">
<div class="filter-section" id="filter-section"><button class="platform-tag platform-selector common-like" data-active="" data-filter=":kmath-stat:dokkaHtmlPartial/commonMain">common</button></div>
<button id="theme-toggle-button"><span id="theme-toggle"></span></button>
<div id="searchBar"></div>
</div>
</div>
<div id="container">
<div id="leftColumn">
<div id="sideMenu"></div>
</div>
<div id="main">
<div class="main-content" id="content" pageids="kmath-stat::space.kscience.kmath.samplers/KempSmallMeanPoissonSampler///PointingToDeclaration//-443365019">
<div class="breadcrumbs"><a href="../../index.html">kmath-stat</a>/<a href="../index.html">space.kscience.kmath.samplers</a>/<a href="index.html">KempSmallMeanPoissonSampler</a></div>
<div class="cover ">
<h1 class="cover"><span>Kemp</span><wbr><span>Small</span><wbr><span>Mean</span><wbr><span>Poisson</span><wbr><span><span>Sampler</span></span></h1>
<div class="platform-hinted with-platform-tabs" data-platform-hinted="data-platform-hinted">
<div class="platform-bookmarks-row" data-toggle-list="data-toggle-list"><button class="platform-bookmark common-like" data-filterable-current=":kmath-stat:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain" data-active="" data-toggle=":kmath-stat:dokkaHtmlPartial/commonMain">common</button></div>
<div class="content sourceset-depenent-content" data-active="" data-togglable=":kmath-stat:dokkaHtmlPartial/commonMain"><div class="symbol monospace"><span class="token keyword">class </span><a href="index.html">KempSmallMeanPoissonSampler</a> : <a href="../../space.kscience.kmath.stat/-sampler/index.html">Sampler</a><span class="token operator">&lt;</span><span class="token keyword"></span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html">Int</a><span class="token operator">&gt; </span><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div><p class="paragraph">Sampler for the Poisson distribution.</p><ul><li><p class="paragraph">Kemp, A, W, (1981) Efficient Generation of Logarithmically Distributed Pseudo-Random Variables. Journal of the Royal Statistical Society. Vol. 30, No. 3, pp. 249-253. This sampler is suitable for mean &lt; 40. For large means, LargeMeanPoissonSampler should be used instead.</p></li></ul><p class="paragraph">Note: The algorithm uses a recurrence relation to compute the Poisson probability and a rolling summation for the cumulative probability. When the mean is large the initial probability (Math.exp(-mean)) is zero and an exception is raised by the constructor.</p><p class="paragraph">Sampling uses 1 call to UniformRandomProvider.nextDouble(). This method provides an alternative to the SmallMeanPoissonSampler for slow generators of double.</p><p class="paragraph">Based on Commons RNG implementation. See https://commons.apache.org/proper/commons-rng/commons-rng-sampling/apidocs/org/apache/commons/rng/sampling/distribution/KempSmallMeanPoissonSampler.html.</p></div> </div>
</div>
<div class="tabbedcontent">
<div class="tabs-section" tabs-section="tabs-section"><button class="section-tab" data-active="" data-togglable="Functions">Functions</button><button class="section-tab" data-togglable="Sources">Sources</button></div>
<div class="tabs-section-body">
<h2 class="">Functions</h2>
<div class="table" data-togglable="Functions"><a data-name="717971726%2FFunctions%2F-443365019" anchor-label="sample" id="717971726%2FFunctions%2F-443365019" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain"></a>
<div class="table-row" data-filterable-current=":kmath-stat:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain">
<div class="main-subrow keyValue ">
<div class=""><span class="inline-flex">
<div><a href="sample.html"><span><span>sample</span></span></a></div>
<span class="anchor-wrapper"><span class="anchor-icon" pointing-to="717971726%2FFunctions%2F-443365019"></span>
<div class="copy-popup-wrapper "><span class="copy-popup-icon"></span><span>Link copied to clipboard</span></div>
</span></span></div>
<div>
<div class="title">
<div class="platform-hinted with-platform-tabs" data-platform-hinted="data-platform-hinted">
<div class="platform-bookmarks-row" data-toggle-list="data-toggle-list"><button class="platform-bookmark common-like" data-filterable-current=":kmath-stat:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain" data-active="" data-toggle=":kmath-stat:dokkaHtmlPartial/commonMain">common</button></div>
<div class="content sourceset-depenent-content" data-active="" data-togglable=":kmath-stat:dokkaHtmlPartial/commonMain"><div class="symbol monospace"><span class="token keyword">open </span><span class="token keyword">override </span><span class="token keyword">fun </span><a href="sample.html"><span class="token function">sample</span></a><span class="token punctuation">(</span>generator<span class="token operator">: </span><a href="../../space.kscience.kmath.stat/-random-generator/index.html">RandomGenerator</a><span class="token punctuation">)</span><span class="token operator">: </span><a href="../../../kmath-coroutines/space.kscience.kmath.chains/-blocking-int-chain/index.html">BlockingIntChain</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div><div class="brief "><p class="paragraph">Generates a chain of samples.</p></div></div> </div>
</div>
</div>
</div>
</div>
<a data-name="-1183299980%2FFunctions%2F-443365019" anchor-label="toString" id="-1183299980%2FFunctions%2F-443365019" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain"></a>
<div class="table-row" data-filterable-current=":kmath-stat:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain">
<div class="main-subrow keyValue ">
<div class=""><span class="inline-flex">
<div><a href="to-string.html"><span>to</span><wbr><span><span>String</span></span></a></div>
<span class="anchor-wrapper"><span class="anchor-icon" pointing-to="-1183299980%2FFunctions%2F-443365019"></span>
<div class="copy-popup-wrapper "><span class="copy-popup-icon"></span><span>Link copied to clipboard</span></div>
</span></span></div>
<div>
<div class="title">
<div class="platform-hinted with-platform-tabs" data-platform-hinted="data-platform-hinted">
<div class="platform-bookmarks-row" data-toggle-list="data-toggle-list"><button class="platform-bookmark common-like" data-filterable-current=":kmath-stat:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain" data-active="" data-toggle=":kmath-stat:dokkaHtmlPartial/commonMain">common</button></div>
<div class="content sourceset-depenent-content" data-active="" data-togglable=":kmath-stat:dokkaHtmlPartial/commonMain"><div class="symbol monospace"><span class="token keyword">open </span><span class="token keyword">override </span><span class="token keyword">fun </span><a href="to-string.html"><span class="token function">toString</span></a><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">: </span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html">String</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div></div> </div>
</div>
</div>
</div>
</div>
</div>
<h2 class="">Sources</h2>
<div class="table" data-togglable="Sources"><a data-name="1139170303%2FSource%2F-443365019" anchor-label="https://github.com/mipt-npm/kmath/tree/master/kmath-stat/src/commonMain/kotlin/space/kscience/kmath/samplers/KempSmallMeanPoissonSampler.kt#L14" id="1139170303%2FSource%2F-443365019" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain"></a>
<div class="table-row" data-filterable-current=":kmath-stat:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-stat:dokkaHtmlPartial/commonMain">
<div class="main-subrow keyValue ">
<div class=""><span class="inline-flex">
<div><a href="https://github.com/mipt-npm/kmath/tree/master/kmath-stat/src/commonMain/kotlin/space/kscience/kmath/samplers/KempSmallMeanPoissonSampler.kt#L14">common source</a></div>
<span class="anchor-wrapper"><span class="anchor-icon" pointing-to="1139170303%2FSource%2F-443365019"></span>
<div class="copy-popup-wrapper "><span class="copy-popup-icon"></span><span>Link copied to clipboard</span></div>
</span></span></div>
<div></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="footer"><span class="go-to-top-icon"><a href="#content" id="go-to-top-link"></a></span><span>© 2022 Copyright</span><span class="pull-right"><span>Generated by </span><a href="https://github.com/Kotlin/dokka"><span>dokka</span><span class="padded-icon"></span></a></span></div>
</div>
</div>
</body></html>