| <!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="Trait for activation functions in models."><meta name="keywords" content="rust, rustlang, rust-lang, ActivationFunc"><title>ActivationFunc in rusty_machine::learning::toolkit::activ_fn - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../../normalize.css"><link rel="stylesheet" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../dark.css" disabled><link rel="stylesheet" href="../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../storage.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../favicon.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button><a class="sidebar-logo" href="../../../../rusty_machine/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../../../rusty_machine/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">ActivationFunc</a></h2><div class="sidebar-elems"><section><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.func">func</a></li><li><a href="#tymethod.func_grad">func_grad</a></li><li><a href="#tymethod.func_grad_from_output">func_grad_from_output</a></li><li><a href="#tymethod.func_inv">func_inv</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In rusty_machine::learning::toolkit::activ_fn</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Trait <a href="../../../index.html">rusty_machine</a>::<wbr><a href="../../index.html">learning</a>::<wbr><a href="../index.html">toolkit</a>::<wbr><a href="index.html">activ_fn</a>::<wbr><a class="trait" href="#">ActivationFunc</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#14-27">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust trait"><code>pub trait ActivationFunc: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> { |
| fn <a href="#tymethod.func" class="fnname">func</a>(x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.func_grad" class="fnname">func_grad</a>(x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.func_grad_from_output" class="fnname">func_grad_from_output</a>(y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>; |
| <span class="item-spacer"></span> fn <a href="#tymethod.func_inv" class="fnname">func_inv</a>(x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>; |
| }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Trait for activation functions in models.</p> |
| </div></details><h2 id="required-methods" class="small-section-header">Required Methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle method-toggle" open><summary><section id="tymethod.func" class="method has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#16">source</a><h4 class="code-header">fn <a href="#tymethod.func" class="fnname">func</a>(x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></h4></section></summary><div class="docblock"><p>The activation function.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="tymethod.func_grad" class="method has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#19">source</a><h4 class="code-header">fn <a href="#tymethod.func_grad" class="fnname">func_grad</a>(x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></h4></section></summary><div class="docblock"><p>The gradient of the activation function.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="tymethod.func_grad_from_output" class="method has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#23">source</a><h4 class="code-header">fn <a href="#tymethod.func_grad_from_output" class="fnname">func_grad_from_output</a>(y: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></h4></section></summary><div class="docblock"><p>The gradient of the activation function calculated using the output of the function. |
| Calculates f’(x) given f(x) as an input</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="tymethod.func_inv" class="method has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#26">source</a><h4 class="code-header">fn <a href="#tymethod.func_inv" class="fnname">func_inv</a>(x: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a></h4></section></summary><div class="docblock"><p>The inverse of the activation function.</p> |
| </div></details></div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div id="implementors-list"><section id="impl-ActivationFunc-for-Exp" class="impl has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#83-99">source</a><a href="#impl-ActivationFunc-for-Exp" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="trait.ActivationFunc.html" title="trait rusty_machine::learning::toolkit::activ_fn::ActivationFunc">ActivationFunc</a> for <a class="struct" href="struct.Exp.html" title="struct rusty_machine::learning::toolkit::activ_fn::Exp">Exp</a></h3></section><section id="impl-ActivationFunc-for-Linear" class="impl has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#61-77">source</a><a href="#impl-ActivationFunc-for-Linear" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="trait.ActivationFunc.html" title="trait rusty_machine::learning::toolkit::activ_fn::ActivationFunc">ActivationFunc</a> for <a class="struct" href="struct.Linear.html" title="struct rusty_machine::learning::toolkit::activ_fn::Linear">Linear</a></h3></section><section id="impl-ActivationFunc-for-Sigmoid" class="impl has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#33-55">source</a><a href="#impl-ActivationFunc-for-Sigmoid" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="trait.ActivationFunc.html" title="trait rusty_machine::learning::toolkit::activ_fn::ActivationFunc">ActivationFunc</a> for <a class="struct" href="struct.Sigmoid.html" title="struct rusty_machine::learning::toolkit::activ_fn::Sigmoid">Sigmoid</a></h3></section><section id="impl-ActivationFunc-for-Tanh" class="impl has-srclink"><a class="srclink rightside" href="../../../../src/rusty_machine/learning/toolkit/activ_fn.rs.html#105-122">source</a><a href="#impl-ActivationFunc-for-Tanh" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="trait.ActivationFunc.html" title="trait rusty_machine::learning::toolkit::activ_fn::ActivationFunc">ActivationFunc</a> for <a class="struct" href="struct.Tanh.html" title="struct rusty_machine::learning::toolkit::activ_fn::Tanh">Tanh</a></h3></section></div><script src="../../../../implementors/rusty_machine/learning/toolkit/activ_fn/trait.ActivationFunc.js" async></script></section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="rusty_machine" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
