import{s as ga,o as Ma,n as Ws}from"../chunks/scheduler.bdbef820.js";import{S as ya,i as Ja,g as m,s as n,r as h,A as fa,h as c,f as t,c as p,j as da,u as i,x as g,k as ua,y as ba,a as e,v as o,d as j,t as d,w as u}from"../chunks/index.c0aea24a.js";import{T as Ds}from"../chunks/Tip.31005f7d.js";import{C as J}from"../chunks/CodeBlock.6ccca92e.js";import{H as ns,E as Ua}from"../chunks/EditOnGithub.725ee0c1.js";function Ta(f){let l,M=`<code>jax</code> and <code>jaxlib</code> are required to reproduce to code above, so please make sure you
install them as <code>pip install datasets[jax]</code>.`;return{c(){l=m("p"),l.innerHTML=M},l(r){l=c(r,"P",{"data-svelte-h":!0}),g(l)!=="svelte-1i2qrbm"&&(l.innerHTML=M)},m(r,y){e(r,l,y)},p:Ws,d(r){r&&t(l)}}}function wa(f){let l,M='A <a href="/docs/datasets/pr_6981/en/package_reference/main_classes#datasets.Dataset">Dataset</a> object is a wrapper of an Arrow table, which allows fast reads from arrays in the dataset to JAX arrays.';return{c(){l=m("p"),l.innerHTML=M},l(r){l=c(r,"P",{"data-svelte-h":!0}),g(l)!=="svelte-177ea5a"&&(l.innerHTML=M)},m(r,y){e(r,l,y)},p:Ws,d(r){r&&t(l)}}}function $a(f){let l,M=`To use the <a href="/docs/datasets/pr_6981/en/package_reference/main_classes#datasets.Image">Image</a> feature type, you’ll need to install the <code>vision</code> extra as
<code>pip install datasets[vision]</code>.`;return{c(){l=m("p"),l.innerHTML=M},l(r){l=c(r,"P",{"data-svelte-h":!0}),g(l)!=="svelte-m6e6re"&&(l.innerHTML=M)},m(r,y){e(r,l,y)},p:Ws,d(r){r&&t(l)}}}function Ca(f){let l,M=`To use the <a href="/docs/datasets/pr_6981/en/package_reference/main_classes#datasets.Audio">Audio</a> feature type, you’ll need to install the <code>audio</code> extra as
<code>pip install datasets[audio]</code>.`;return{c(){l=m("p"),l.innerHTML=M},l(r){l=c(r,"P",{"data-svelte-h":!0}),g(l)!=="svelte-1ev43u8"&&(l.innerHTML=M)},m(r,y){e(r,l,y)},p:Ws,d(r){r&&t(l)}}}function Ia(f){let l,M,r,y,$,rs,C,Hs=`This document is a quick introduction to using <code>datasets</code> with JAX, with a particular focus on how to get
<code>jax.Array</code> objects out of our datasets, and how to use them to train JAX models.`,ms,b,cs,I,hs,R,Ls=`By default, datasets return regular Python objects: integers, floats, strings, lists, etc., and
string and binary objects are unchanged, since JAX only supports numbers.`,is,Z,Ss="To get JAX arrays (numpy-like) instead, you can set the format of the dataset to <code>jax</code>:",os,k,js,U,ds,X,Ps=`Note that the exact same procedure applies to <code>DatasetDict</code> objects, so that
when setting the format of a <code>DatasetDict</code> to <code>jax</code>, all the <code>Dataset</code>s there
will be formatted as <code>jax</code>:`,us,N,gs,Q,Ks=`Another thing you’ll need to take into consideration is that the formatting is not applied
until you actually access the data. So if you want to get a JAX array out of a dataset,
you’ll need to access the data first, otherwise the format will remain the same.`,Ms,x,Os=`Finally, to load the data in the device of your choice, you can specify the <code>device</code> argument,
but note that <code>jaxlib.xla_extension.Device</code> is not supported as it’s not serializable with neither
<code>pickle</code> not <code>dill</code>, so you’ll need to use its string identifier instead:`,ys,v,Js,A,sa=`Note that if the <code>device</code> argument is not provided to <code>with_format</code> then it will use the default
device which is <code>jax.devices()[0]</code>.`,fs,_,bs,q,aa="If your dataset consists of N-dimensional arrays, you will see that by default they are considered as the same tensor if the shape is fixed:",Us,G,Ts,E,ws,V,ta=`However this logic often requires slow shape comparisons and data copies.
To avoid this, you must explicitly use the <code>Array</code> feature type and specify the shape of your tensors:`,$s,F,Cs,z,Is,Y,ea='<a href="/docs/datasets/pr_6981/en/package_reference/main_classes#datasets.ClassLabel">ClassLabel</a> data is properly converted to arrays:',Rs,B,Zs,D,la="String and binary objects are unchanged, since JAX only supports numbers.",ks,W,na='The <a href="/docs/datasets/pr_6981/en/package_reference/main_classes#datasets.Image">Image</a> and <a href="/docs/datasets/pr_6981/en/package_reference/main_classes#datasets.Audio">Audio</a> feature types are also supported.',Xs,T,Ns,H,Qs,w,xs,L,vs,S,As,P,pa=`JAX doesn’t have any built-in data loading capabilities, so you’ll need to use a library such
as <a href="https://pytorch.org/" rel="nofollow">PyTorch</a> to load your data using a <code>DataLoader</code> or <a href="https://www.tensorflow.org/" rel="nofollow">TensorFlow</a>
using a <code>tf.data.Dataset</code>. Citing the <a href="https://jax.readthedocs.io/en/latest/notebooks/Neural_Network_and_Data_Loading.html#data-loading-with-pytorch" rel="nofollow">JAX documentation</a> on this topic:
“JAX is laser-focused on program transformations and accelerator-backed NumPy, so we don’t
include data loading or munging in the JAX library. There are already a lot of great data loaders
out there, so let’s just use them instead of reinventing anything. We’ll grab PyTorch’s data loader,
and make a tiny shim to make it work with NumPy arrays.”.`,_s,K,ra=`So that’s the reason why JAX-formatting in <code>datasets</code> is so useful, because it lets you use
any model from the HuggingFace Hub with JAX, without having to worry about the data loading
part.`,qs,O,Gs,ss,ma=`The easiest way to get JAX arrays out of a dataset is to use the <code>with_format(&#39;jax&#39;)</code> method. Lets assume
that we want to train a neural network on the <a href="http://yann.lecun.com/exdb/mnist/" rel="nofollow">MNIST dataset</a> available
at the HuggingFace Hub at <a href="https://huggingface.co/datasets/mnist" rel="nofollow">https://huggingface.co/datasets/mnist</a>.`,Es,as,Vs,ts,ca=`Once the format is set we can feed the dataset to the JAX model in batches using the <code>Dataset.iter()</code>
method:`,Fs,es,zs,ls,Ys,ps,Bs;return $=new ns({props:{title:"Use with JAX",local:"use-with-jax",headingTag:"h1"}}),b=new Ds({props:{$$slots:{default:[Ta]},$$scope:{ctx:f}}}),I=new ns({props:{title:"Dataset format",local:"dataset-format",headingTag:"h2"}}),k=new J({props:{code:"ZnJvbSUyMGRhdGFzZXRzJTIwaW1wb3J0JTIwRGF0YXNldCUwQWRhdGElMjAlM0QlMjAlNUIlNUIxJTJDJTIwMiU1RCUyQyUyMCU1QjMlMkMlMjA0JTVEJTVEJTBBZHMlMjAlM0QlMjBEYXRhc2V0LmZyb21fZGljdCglN0IlMjJkYXRhJTIyJTNBJTIwZGF0YSU3RCklMEFkcyUyMCUzRCUyMGRzLndpdGhfZm9ybWF0KCUyMmpheCUyMiklMEFkcyU1QjAlNUQlMEFkcyU1QiUzQTIlNUQ=",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset
<span class="hljs-meta">&gt;&gt;&gt; </span>data = [[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>], [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]]
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;data&quot;</span>: data})
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: DeviceArray([<span class="hljs-number">1</span>, <span class="hljs-number">2</span>], dtype=int32)}
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[:<span class="hljs-number">2</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: DeviceArray([
    [<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],
    [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]], dtype=int32)}`,wrap:!1}}),U=new Ds({props:{$$slots:{default:[wa]},$$scope:{ctx:f}}}),N=new J({props:{code:"ZnJvbSUyMGRhdGFzZXRzJTIwaW1wb3J0JTIwRGF0YXNldERpY3QlMEFkYXRhJTIwJTNEJTIwJTdCJTIydHJhaW4lMjIlM0ElMjAlN0IlMjJkYXRhJTIyJTNBJTIwJTVCJTVCMSUyQyUyMDIlNUQlMkMlMjAlNUIzJTJDJTIwNCU1RCU1RCU3RCUyQyUyMCUyMnRlc3QlMjIlM0ElMjAlN0IlMjJkYXRhJTIyJTNBJTIwJTVCJTVCNSUyQyUyMDYlNUQlMkMlMjAlNUI3JTJDJTIwOCU1RCU1RCU3RCU3RCUwQWRkcyUyMCUzRCUyMERhdGFzZXREaWN0LmZyb21fZGljdChkYXRhKSUwQWRkcyUyMCUzRCUyMGRkcy53aXRoX2Zvcm1hdCglMjJqYXglMjIpJTBBZGRzJTVCJTIydHJhaW4lMjIlNUQlNUIlM0EyJTVE",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> DatasetDict
<span class="hljs-meta">&gt;&gt;&gt; </span>data = {<span class="hljs-string">&quot;train&quot;</span>: {<span class="hljs-string">&quot;data&quot;</span>: [[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>], [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]]}, <span class="hljs-string">&quot;test&quot;</span>: {<span class="hljs-string">&quot;data&quot;</span>: [[<span class="hljs-number">5</span>, <span class="hljs-number">6</span>], [<span class="hljs-number">7</span>, <span class="hljs-number">8</span>]]}}
<span class="hljs-meta">&gt;&gt;&gt; </span>dds = DatasetDict.from_dict(data)
<span class="hljs-meta">&gt;&gt;&gt; </span>dds = dds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>dds[<span class="hljs-string">&quot;train&quot;</span>][:<span class="hljs-number">2</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: DeviceArray([
    [<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],
    [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]], dtype=int32)}`,wrap:!1}}),v=new J({props:{code:"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",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">import</span> jax
<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset
<span class="hljs-meta">&gt;&gt;&gt; </span>data = [[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>], [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]]
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;data&quot;</span>: data})
<span class="hljs-meta">&gt;&gt;&gt; </span>device = <span class="hljs-built_in">str</span>(jax.devices()[<span class="hljs-number">0</span>])  <span class="hljs-comment"># Not casting to \`str\` before passing it to \`with_format\` will raise a \`ValueError\`</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>, device=device)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: DeviceArray([<span class="hljs-number">1</span>, <span class="hljs-number">2</span>], dtype=int32)}
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>][<span class="hljs-string">&quot;data&quot;</span>].device()
TFRT_CPU_0
<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">assert</span> ds[<span class="hljs-number">0</span>][<span class="hljs-string">&quot;data&quot;</span>].device() == jax.devices()[<span class="hljs-number">0</span>]
<span class="hljs-literal">True</span>`,wrap:!1}}),_=new ns({props:{title:"N-dimensional arrays",local:"n-dimensional-arrays",headingTag:"h2"}}),G=new J({props:{code:"ZnJvbSUyMGRhdGFzZXRzJTIwaW1wb3J0JTIwRGF0YXNldCUwQWRhdGElMjAlM0QlMjAlNUIlNUIlNUIxJTJDJTIwMiU1RCUyQyU1QjMlMkMlMjA0JTVEJTVEJTJDJTIwJTVCJTVCNSUyQyUyMDYlNUQlMkMlNUI3JTJDJTIwOCU1RCU1RCU1RCUyMCUyMCUyMyUyMGZpeGVkJTIwc2hhcGUlMEFkcyUyMCUzRCUyMERhdGFzZXQuZnJvbV9kaWN0KCU3QiUyMmRhdGElMjIlM0ElMjBkYXRhJTdEKSUwQWRzJTIwJTNEJTIwZHMud2l0aF9mb3JtYXQoJTIyamF4JTIyKSUwQWRzJTVCMCU1RA==",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset
<span class="hljs-meta">&gt;&gt;&gt; </span>data = [[[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],[<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]], [[<span class="hljs-number">5</span>, <span class="hljs-number">6</span>],[<span class="hljs-number">7</span>, <span class="hljs-number">8</span>]]]  <span class="hljs-comment"># fixed shape</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;data&quot;</span>: data})
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: Array([[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],
        [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]], dtype=int32)}`,wrap:!1}}),E=new J({props:{code:"ZnJvbSUyMGRhdGFzZXRzJTIwaW1wb3J0JTIwRGF0YXNldCUwQWRhdGElMjAlM0QlMjAlNUIlNUIlNUIxJTJDJTIwMiU1RCUyQyU1QjMlNUQlNUQlMkMlMjAlNUIlNUI0JTJDJTIwNSUyQyUyMDYlNUQlMkMlNUI3JTJDJTIwOCU1RCU1RCU1RCUyMCUyMCUyMyUyMHZhcnlpbmclMjBzaGFwZSUwQWRzJTIwJTNEJTIwRGF0YXNldC5mcm9tX2RpY3QoJTdCJTIyZGF0YSUyMiUzQSUyMGRhdGElN0QpJTBBZHMlMjAlM0QlMjBkcy53aXRoX2Zvcm1hdCglMjJqYXglMjIpJTBBZHMlNUIwJTVE",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset
<span class="hljs-meta">&gt;&gt;&gt; </span>data = [[[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],[<span class="hljs-number">3</span>]], [[<span class="hljs-number">4</span>, <span class="hljs-number">5</span>, <span class="hljs-number">6</span>],[<span class="hljs-number">7</span>, <span class="hljs-number">8</span>]]]  <span class="hljs-comment"># varying shape</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;data&quot;</span>: data})
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: [Array([<span class="hljs-number">1</span>, <span class="hljs-number">2</span>], dtype=int32), Array([<span class="hljs-number">3</span>], dtype=int32)]}`,wrap:!1}}),F=new J({props:{code:"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",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset, Features, Array2D
<span class="hljs-meta">&gt;&gt;&gt; </span>data = [[[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],[<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]],[[<span class="hljs-number">5</span>, <span class="hljs-number">6</span>],[<span class="hljs-number">7</span>, <span class="hljs-number">8</span>]]]
<span class="hljs-meta">&gt;&gt;&gt; </span>features = Features({<span class="hljs-string">&quot;data&quot;</span>: Array2D(shape=(<span class="hljs-number">2</span>, <span class="hljs-number">2</span>), dtype=<span class="hljs-string">&#x27;int32&#x27;</span>)})
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;data&quot;</span>: data}, features=features)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;torch&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: Array([[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],
        [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]], dtype=int32)}
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[:<span class="hljs-number">2</span>]
{<span class="hljs-string">&#x27;data&#x27;</span>: Array([[[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>],
         [<span class="hljs-number">3</span>, <span class="hljs-number">4</span>]],
 
        [[<span class="hljs-number">5</span>, <span class="hljs-number">6</span>],
         [<span class="hljs-number">7</span>, <span class="hljs-number">8</span>]]], dtype=int32)}`,wrap:!1}}),z=new ns({props:{title:"Other feature types",local:"other-feature-types",headingTag:"h2"}}),B=new J({props:{code:"ZnJvbSUyMGRhdGFzZXRzJTIwaW1wb3J0JTIwRGF0YXNldCUyQyUyMEZlYXR1cmVzJTJDJTIwQ2xhc3NMYWJlbCUwQWxhYmVscyUyMCUzRCUyMCU1QjAlMkMlMjAwJTJDJTIwMSU1RCUwQWZlYXR1cmVzJTIwJTNEJTIwRmVhdHVyZXMoJTdCJTIybGFiZWwlMjIlM0ElMjBDbGFzc0xhYmVsKG5hbWVzJTNEJTVCJTIybmVnYXRpdmUlMjIlMkMlMjAlMjJwb3NpdGl2ZSUyMiU1RCklN0QpJTBBZHMlMjAlM0QlMjBEYXRhc2V0LmZyb21fZGljdCglN0IlMjJsYWJlbCUyMiUzQSUyMGxhYmVscyU3RCUyQyUyMGZlYXR1cmVzJTNEZmVhdHVyZXMpJTBBZHMlMjAlM0QlMjBkcy53aXRoX2Zvcm1hdCglMjJqYXglMjIpJTBBZHMlNUIlM0EzJTVE",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset, Features, ClassLabel
<span class="hljs-meta">&gt;&gt;&gt; </span>labels = [<span class="hljs-number">0</span>, <span class="hljs-number">0</span>, <span class="hljs-number">1</span>]
<span class="hljs-meta">&gt;&gt;&gt; </span>features = Features({<span class="hljs-string">&quot;label&quot;</span>: ClassLabel(names=[<span class="hljs-string">&quot;negative&quot;</span>, <span class="hljs-string">&quot;positive&quot;</span>])})
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;label&quot;</span>: labels}, features=features)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[:<span class="hljs-number">3</span>]
{<span class="hljs-string">&#x27;label&#x27;</span>: DeviceArray([<span class="hljs-number">0</span>, <span class="hljs-number">0</span>, <span class="hljs-number">1</span>], dtype=int32)}`,wrap:!1}}),T=new Ds({props:{$$slots:{default:[$a]},$$scope:{ctx:f}}}),H=new J({props:{code:"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",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset, Features, Image
<span class="hljs-meta">&gt;&gt;&gt; </span>images = [<span class="hljs-string">&quot;path/to/image.png&quot;</span>] * <span class="hljs-number">10</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>features = Features({<span class="hljs-string">&quot;image&quot;</span>: Image()})
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;image&quot;</span>: images}, features=features)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>][<span class="hljs-string">&quot;image&quot;</span>].shape
(<span class="hljs-number">512</span>, <span class="hljs-number">512</span>, <span class="hljs-number">3</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>]
{<span class="hljs-string">&#x27;image&#x27;</span>: DeviceArray([[[ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>],
              [ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>],
              ...,
              [ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>],
              [ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>]]], dtype=uint8)}
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[:<span class="hljs-number">2</span>][<span class="hljs-string">&quot;image&quot;</span>].shape
(<span class="hljs-number">2</span>, <span class="hljs-number">512</span>, <span class="hljs-number">512</span>, <span class="hljs-number">3</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[:<span class="hljs-number">2</span>]
{<span class="hljs-string">&#x27;image&#x27;</span>: DeviceArray([[[[ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>],
              [ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>],
              ...,
              [ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>],
              [ <span class="hljs-number">255</span>, <span class="hljs-number">255</span>, <span class="hljs-number">255</span>]]]], dtype=uint8)}`,wrap:!1}}),w=new Ds({props:{$$slots:{default:[Ca]},$$scope:{ctx:f}}}),L=new J({props:{code:"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",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> Dataset, Features, Audio
<span class="hljs-meta">&gt;&gt;&gt; </span>audio = [<span class="hljs-string">&quot;path/to/audio.wav&quot;</span>] * <span class="hljs-number">10</span>
<span class="hljs-meta">&gt;&gt;&gt; </span>features = Features({<span class="hljs-string">&quot;audio&quot;</span>: Audio()})
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = Dataset.from_dict({<span class="hljs-string">&quot;audio&quot;</span>: audio}, features=features)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>][<span class="hljs-string">&quot;audio&quot;</span>][<span class="hljs-string">&quot;array&quot;</span>]
DeviceArray([-<span class="hljs-number">0.059021</span>  , -<span class="hljs-number">0.03894043</span>, -<span class="hljs-number">0.00735474</span>, ...,  <span class="hljs-number">0.0133667</span> ,
              <span class="hljs-number">0.01809692</span>,  <span class="hljs-number">0.00268555</span>], dtype=float32)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-number">0</span>][<span class="hljs-string">&quot;audio&quot;</span>][<span class="hljs-string">&quot;sampling_rate&quot;</span>]
DeviceArray(<span class="hljs-number">44100</span>, dtype=int32, weak_type=<span class="hljs-literal">True</span>)`,wrap:!1}}),S=new ns({props:{title:"Data loading",local:"data-loading",headingTag:"h2"}}),O=new ns({props:{title:"Using with_format('jax')",local:"using-withformatjax",headingTag:"h3"}}),as=new J({props:{code:"ZnJvbSUyMGRhdGFzZXRzJTIwaW1wb3J0JTIwbG9hZF9kYXRhc2V0JTBBZHMlMjAlM0QlMjBsb2FkX2RhdGFzZXQoJTIybW5pc3QlMjIpJTBBZHMlMjAlM0QlMjBkcy53aXRoX2Zvcm1hdCglMjJqYXglMjIpJTBBZHMlNUIlMjJ0cmFpbiUyMiU1RCU1QjAlNUQ=",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">from</span> datasets <span class="hljs-keyword">import</span> load_dataset
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = load_dataset(<span class="hljs-string">&quot;mnist&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds = ds.with_format(<span class="hljs-string">&quot;jax&quot;</span>)
<span class="hljs-meta">&gt;&gt;&gt; </span>ds[<span class="hljs-string">&quot;train&quot;</span>][<span class="hljs-number">0</span>]
{<span class="hljs-string">&#x27;image&#x27;</span>: DeviceArray([[  <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>, ...],
                       [  <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>, ...],
                       ...,
                       [  <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>, ...],
                       [  <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>,   <span class="hljs-number">0</span>, ...]], dtype=uint8),
 <span class="hljs-string">&#x27;label&#x27;</span>: DeviceArray(<span class="hljs-number">5</span>, dtype=int32)}`,wrap:!1}}),es=new J({props:{code:"Zm9yJTIwZXBvY2glMjBpbiUyMHJhbmdlKGVwb2NocyklM0ElMEElMjAlMjAlMjAlMjBmb3IlMjBiYXRjaCUyMGluJTIwZHMlNUIlMjJ0cmFpbiUyMiU1RC5pdGVyKGJhdGNoX3NpemUlM0QzMiklM0ElMEElMjAlMjAlMjAlMjAlMjAlMjAlMjAlMjB4JTJDJTIweSUyMCUzRCUyMGJhdGNoJTVCJTIyaW1hZ2UlMjIlNUQlMkMlMjBiYXRjaCU1QiUyMmxhYmVsJTIyJTVEJTBBJTIwJTIwJTIwJTIwJTIwJTIwJTIwJTIwLi4u",highlighted:`<span class="hljs-meta">&gt;&gt;&gt; </span><span class="hljs-keyword">for</span> epoch <span class="hljs-keyword">in</span> <span class="hljs-built_in">range</span>(epochs):
<span class="hljs-meta">... </span>    <span class="hljs-keyword">for</span> batch <span class="hljs-keyword">in</span> ds[<span class="hljs-string">&quot;train&quot;</span>].<span class="hljs-built_in">iter</span>(batch_size=<span class="hljs-number">32</span>):
<span class="hljs-meta">... </span>        x, y = batch[<span class="hljs-string">&quot;image&quot;</span>], batch[<span class="hljs-string">&quot;label&quot;</span>]
<span class="hljs-meta">... </span>        ...`,wrap:!1}}),ls=new 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