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<html lang="en"><head><meta charset="UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><title>Datasets · Flux</title><script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
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</script><link href="https://fonts.googleapis.com/css?family=Lato|Roboto+Mono" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/fontawesome.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/solid.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.11.2/css/brands.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.11.1/katex.min.css" rel="stylesheet" type="text/css"/><script>documenterBaseURL=".."</script><script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.6/require.min.js" data-main="../assets/documenter.js"></script><script src="../siteinfo.js"></script><script src="../../versions.js"></script><link href="../assets/flux.css" rel="stylesheet" type="text/css"/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../assets/themes/documenter-dark.css" data-theme-name="documenter-dark"/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../assets/themes/documenter-light.css" data-theme-name="documenter-light" data-theme-primary/><script src="../assets/themeswap.js"></script></head><body><div id="documenter"><nav class="docs-sidebar"><div class="docs-package-name"><span class="docs-autofit">Flux</span></div><form class="docs-search" action="../search/"><input class="docs-search-query" id="documenter-search-query" name="q" type="text" placeholder="Search docs"/></form><ul class="docs-menu"><li><a class="tocitem" href="../">Home</a></li><li><span class="tocitem">Building Models</span><ul><li><a class="tocitem" href="../models/basics/">Basics</a></li><li><a class="tocitem" href="../models/recurrence/">Recurrence</a></li><li><a class="tocitem" href="../models/regularisation/">Regularisation</a></li><li><a class="tocitem" href="../models/layers/">Model Reference</a></li><li><a class="tocitem" href="../models/advanced/">Advanced Model Building</a></li><li><a class="tocitem" href="../models/nnlib/">NNlib</a></li></ul></li><li><span class="tocitem">Handling Data</span><ul><li><a class="tocitem" href="../data/onehot/">One-Hot Encoding</a></li><li><a class="tocitem" href="../data/dataloader/">DataLoader</a></li></ul></li><li><span class="tocitem">Training Models</span><ul><li><a class="tocitem" href="../training/optimisers/">Optimisers</a></li><li><a class="tocitem" href="../training/training/">Training</a></li></ul></li><li><a class="tocitem" href="../gpu/">GPU Support</a></li><li><a class="tocitem" href="../saving/">Saving & Loading</a></li><li><a class="tocitem" href="../ecosystem/">The Julia Ecosystem</a></li><li><a class="tocitem" href="../utilities/">Utility Functions</a></li><li><a class="tocitem" href="../performance/">Performance Tips</a></li><li class="is-active"><a class="tocitem" href>Datasets</a></li><li><a class="tocitem" href="../community/">Community</a></li></ul><div class="docs-version-selector field has-addons"><div class="control"><span class="docs-label button is-static is-size-7">Version</span></div><div class="docs-selector control is-expanded"><div class="select is-fullwidth is-size-7"><select id="documenter-version-selector"></select></div></div></div></nav><div class="docs-main"><header class="docs-navbar"><nav class="breadcrumb"><ul class="is-hidden-mobile"><li class="is-active"><a href>Datasets</a></li></ul><ul class="is-hidden-tablet"><li class="is-active"><a href>Datasets</a></li></ul></nav><div class="docs-right"><a class="docs-edit-link" href="https://github.com/FluxML/Flux.jl/blob/master/docs/src/datasets.md" title="Edit on GitHub"><span class="docs-icon fab"></span><span class="docs-label is-hidden-touch">Edit on GitHub</span></a><a class="docs-settings-button fas fa-cog" id="documenter-settings-button" href="#" title="Settings"></a><a class="docs-sidebar-button fa fa-bars is-hidden-desktop" id="documenter-sidebar-button" href="#"></a></div></header><article class="content" id="documenter-page"><h1 id="Datasets-1"><a class="docs-heading-anchor" href="#Datasets-1">Datasets</a><a class="docs-heading-anchor-permalink" href="#Datasets-1" title="Permalink"></a></h1><p>Flux includes several standard machine learning datasets.</p><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.Iris.features-Tuple{}" href="#Flux.Data.Iris.features-Tuple{}"><code>Flux.Data.Iris.features</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">features()</code></pre><p>Get the features of the iris dataset. This is a 4x150 matrix of Float64 elements. It has a row for each feature (sepal length, sepal width, petal length, petal width) and a column for each example.</p><pre><code class="language-julia-repl">julia> features = Flux.Data.Iris.features();
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julia> summary(features)
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"4×150 Array{Float64,2}"
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julia> features[:, 1]
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4-element Array{Float64,1}:
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5.1
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3.5
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1.4
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0.2</code></pre></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/iris.jl#L51-L71">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.Iris.labels-Tuple{}" href="#Flux.Data.Iris.labels-Tuple{}"><code>Flux.Data.Iris.labels</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">labels()</code></pre><p>Get the labels of the iris dataset, a 150 element array of strings listing the species of each example.</p><pre><code class="language-julia-repl">julia> labels = Flux.Data.Iris.labels();
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julia> summary(labels)
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"150-element Array{String,1}"
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julia> labels[1]
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"Iris-setosa"</code></pre></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/iris.jl#L29-L44">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.MNIST.images-Tuple{}" href="#Flux.Data.MNIST.images-Tuple{}"><code>Flux.Data.MNIST.images</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">images()
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images(:test)</code></pre><p>Load the MNIST images.</p><p>Each image is a 28×28 array of <code>Gray</code> colour values (see <a href="https://github.com/JuliaGraphics/Colors.jl">Colors.jl</a>).</p><p>Return the 60,000 training images by default; pass <code>:test</code> to retrieve the 10,000 test images.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/mnist.jl#L80-L91">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.MNIST.labels-Tuple{}" href="#Flux.Data.MNIST.labels-Tuple{}"><code>Flux.Data.MNIST.labels</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">labels()
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labels(:test)</code></pre><p>Load the labels corresponding to each of the images returned from <a href="#Flux.Data.MNIST.images-Tuple{}"><code>images()</code></a>. Each label is a number from 0-9.</p><p>Return the 60,000 training labels by default; pass <code>:test</code> to retrieve the 10,000 test labels.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/mnist.jl#L99-L108">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.FashionMNIST.images-Tuple{}" href="#Flux.Data.FashionMNIST.images-Tuple{}"><code>Flux.Data.FashionMNIST.images</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">images()
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images(:test)</code></pre><p>Load the Fashion-MNIST images.</p><p>Each image is a 28×28 array of <code>Gray</code> colour values (see <a href="https://github.com/JuliaGraphics/Colors.jl">Colors.jl</a>).</p><p>Return the 60,000 training images by default; pass <code>:test</code> to retrieve the 10,000 test images.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/fashion-mnist.jl#L30-L41">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.FashionMNIST.labels-Tuple{}" href="#Flux.Data.FashionMNIST.labels-Tuple{}"><code>Flux.Data.FashionMNIST.labels</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">labels()
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labels(:test)</code></pre><p>Load the labels corresponding to each of the images returned from <a href="#Flux.Data.FashionMNIST.images-Tuple{}"><code>images()</code></a>. Each label is a number from 0-9.</p><p>Return the 60,000 training labels by default; pass <code>:test</code> to retrieve the 10,000 test labels.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/fashion-mnist.jl#L49-L58">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.CMUDict.phones-Tuple{}" href="#Flux.Data.CMUDict.phones-Tuple{}"><code>Flux.Data.CMUDict.phones</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">phones()</code></pre><p>Return a <code>Vector</code> containing the phones used in the CMU Pronouncing Dictionary.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/cmudict.jl#L27-L31">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.CMUDict.symbols-Tuple{}" href="#Flux.Data.CMUDict.symbols-Tuple{}"><code>Flux.Data.CMUDict.symbols</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">symbols()</code></pre><p>Return a <code>Vector</code> containing the symbols used in the CMU Pronouncing Dictionary. A symbol is a phone with optional auxiliary symbols, indicating for example the amount of stress on the phone.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/cmudict.jl#L38-L44">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.CMUDict.rawdict-Tuple{}" href="#Flux.Data.CMUDict.rawdict-Tuple{}"><code>Flux.Data.CMUDict.rawdict</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">rawdict()</code></pre><p>Return the unfiltered CMU Pronouncing Dictionary.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/cmudict.jl#L51-L55">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.CMUDict.cmudict-Tuple{}" href="#Flux.Data.CMUDict.cmudict-Tuple{}"><code>Flux.Data.CMUDict.cmudict</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">cmudict()</code></pre><p>Return a filtered CMU Pronouncing Dictionary.</p><p>It is filtered so each word contains only ASCII characters and a combination of word characters (as determined by the regex engine using <code>\w</code>), '-' and '.'.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/cmudict.jl#L64-L71">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.Sentiment.train-Tuple{}" href="#Flux.Data.Sentiment.train-Tuple{}"><code>Flux.Data.Sentiment.train</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">train()</code></pre><p>Return the train split of the Stanford Sentiment Treebank. The data is in <a href="https://en.wikipedia.org/wiki/Treebank">treebank</a> format.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/sentiment.jl#L43-L48">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.Sentiment.test-Tuple{}" href="#Flux.Data.Sentiment.test-Tuple{}"><code>Flux.Data.Sentiment.test</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">test()</code></pre><p>Return the test split of the Stanford Sentiment Treebank. The data is in <a href="https://en.wikipedia.org/wiki/Treebank">treebank</a> format.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/sentiment.jl#L51-L56">source</a></section></article><article class="docstring"><header><a class="docstring-binding" id="Flux.Data.Sentiment.dev-Tuple{}" href="#Flux.Data.Sentiment.dev-Tuple{}"><code>Flux.Data.Sentiment.dev</code></a> — <span class="docstring-category">Method</span></header><section><div><pre><code class="language-julia">dev()</code></pre><p>Return the dev split of the Stanford Sentiment Treebank. The data is in <a href="https://en.wikipedia.org/wiki/Treebank">treebank</a> format.</p></div><a class="docs-sourcelink" target="_blank" href="https://github.com/FluxML/Flux.jl/blob/ddd0f4e747347555894f71ae275ac3906fc87b9e/src/data/sentiment.jl#L59-L64">source</a></section></article></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../performance/">« Performance Tips</a><a class="docs-footer-nextpage" href="../community/">Community »</a></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> on <span class="colophon-date" title="Wednesday 27 May 2020 11:52">Wednesday 27 May 2020</span>. 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