Buckets:
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| <link rel="modulepreload" href="/docs/transformers.js/pr_1649/en/_app/immutable/chunks/CodeBlock.72c8dd07.js"><!-- HEAD_svelte-u9bgzb_START --><meta name="hf:doc:metadata" content="{"title":"utils/random","local":"utilsrandom","sections":[{"title":"utils/random.Random","local":"utilsrandomrandom","sections":[{"title":"new Random()","local":"new-random","sections":[],"depth":3},{"title":"random.seed([n])","local":"randomseedn","sections":[],"depth":3},{"title":"random._int32() ⇒ number","local":"randomint32--number","sections":[],"depth":3},{"title":"random.random() ⇒ number","local":"randomrandom--number","sections":[],"depth":3},{"title":"random.gauss([mu], [sigma]) ⇒ number","local":"randomgaussmu-sigma--number","sections":[],"depth":3},{"title":"random.shuffle(arr)","local":"randomshufflearr","sections":[],"depth":3},{"title":"random.choices(population, weights) ⇒ *","local":"randomchoicespopulation-weights--","sections":[],"depth":3}],"depth":2},{"title":"utils/random~_weightedIndexWith(randomFn, weights) ⇒ number","local":"utilsrandomweightedindexwithrandomfn-weights--number","sections":[],"depth":2}],"depth":1}"><!-- HEAD_svelte-u9bgzb_END --> <p></p> <a id="module_utils/random" class="group"></a> <div class="items-center shrink-0 min-w-[100px] max-sm:min-w-[50px] justify-end ml-auto flex" style="float: right; margin-left: 10px; display: inline-flex; position: relative; z-index: 10;"><div class="inline-flex rounded-md max-sm:rounded-sm"><button class="inline-flex items-center gap-1 h-7 max-sm:h-7 px-2 max-sm:px-1.5 text-sm font-medium text-gray-800 border border-r-0 rounded-l-md max-sm:rounded-l-sm border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-live="polite"><span class="inline-flex items-center justify-center rounded-md p-0.5 max-sm:p-0 hover:text-gray-800 dark:hover:text-gray-200"><svg class="sm:size-3.5 size-3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg></span> <span>Copy page</span></button> <button class="inline-flex items-center justify-center w-6 max-sm:w-5 h-7 max-sm:h-7 disabled:pointer-events-none text-sm text-gray-500 hover:text-gray-700 dark:hover:text-white rounded-r-md max-sm:rounded-r-sm border border-l transition border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-haspopup="menu" aria-expanded="false" aria-label="Open copy menu"><svg class="transition-transform text-gray-400 overflow-visible sm:size-3.5 size-3 rotate-0" width="1em" height="1em" viewBox="0 0 12 7" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M1 1L6 6L11 1" stroke="currentColor"></path></svg></button></div> </div> <h1 class="relative group"><a id="utilsrandom" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#utilsrandom"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>utils/random</span></h1> <p data-svelte-h="svelte-13xf05t">Let there be order amidst the chaos.</p> <p data-svelte-h="svelte-iikaei">This file implements Mersenne Twister 19937, matching Python’s <code>random</code> module exactly for reproducibility.</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START --><span class="hljs-keyword">import</span> { random } <span class="hljs-keyword">from</span> <span class="hljs-string">'@huggingface/transformers'</span>; | |
| random.<span class="hljs-title function_">seed</span>(<span class="hljs-number">42</span>); | |
| random.<span class="hljs-title function_">random</span>(); <span class="hljs-comment">// 0.6394267984578837 (matches Python)</span> | |
| random.<span class="hljs-title function_">gauss</span>(<span class="hljs-number">0</span>, <span class="hljs-number">1</span>); <span class="hljs-comment">// normal-distributed value</span> | |
| random.<span class="hljs-title function_">choices</span>([<span class="hljs-string">'a'</span>,<span class="hljs-string">'b'</span>], [<span class="hljs-number">3</span>, <span class="hljs-number">1</span>]); <span class="hljs-comment">// weighted pick</span> | |
| <span class="hljs-keyword">const</span> arr = [<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>]; | |
| random.<span class="hljs-title function_">shuffle</span>(arr); <span class="hljs-comment">// in-place Fisher-Yates shuffle</span> | |
| <span class="hljs-comment">// Use a separate instance to avoid affecting the global state:</span> | |
| <span class="hljs-keyword">const</span> rng = <span class="hljs-keyword">new</span> random.<span class="hljs-title class_">Random</span>(<span class="hljs-number">42</span>); | |
| rng.<span class="hljs-title function_">random</span>(); <span class="hljs-comment">// 0.6394267984578837 (same seed, independent state)</span><!-- HTML_TAG_END --></pre></div> <p data-svelte-h="svelte-4eiz2z"><strong>Note on Reproducibility:</strong> | |
| Similarly to the <a href="https://docs.python.org/3/library/random.html#notes-on-reproducibility" rel="nofollow">Python random</a> | |
| module, it is useful to be able to reproduce the sequences given by a pseudo-random number generator. | |
| By reusing a seed value, the same sequence should be reproducible from run to run as long as multiple | |
| threads or asynchronous operations are not running concurrently.</p> <ul data-svelte-h="svelte-g8638k"><li><a href="#module_utils/random">utils/random</a> <ul><li><em>static</em> <ul><li><a href="#module_utils/random.Random">.Random</a> <ul><li><a href="#new_module_utils/random.Random_new"><code>new Random()</code></a></li> <li><a href="#module_utils/random.Random+seed"><code>.seed([n])</code></a></li> <li><a href="#module_utils/random.Random+_int32"><code>._int32()</code></a> ⇒ <code>number</code></li> <li><a href="#module_utils/random.Random+random"><code>.random()</code></a> ⇒ <code>number</code></li> <li><a href="#module_utils/random.Random+gauss"><code>.gauss([mu], [sigma])</code></a> ⇒ <code>number</code></li> <li><a href="#module_utils/random.Random+shuffle"><code>.shuffle(arr)</code></a></li> <li><a href="#module_utils/random.Random+choices"><code>.choices(population, weights)</code></a> ⇒ <code>*</code></li></ul></li></ul></li> <li><em>inner</em> <ul><li><a href="#module_utils/random.._weightedIndexWith"><code>~_weightedIndexWith(randomFn, weights)</code></a> ⇒ <code>number</code></li></ul></li></ul></li></ul> <hr> <a id="module_utils/random.Random" class="group"></a> <h2 class="relative group"><a id="utilsrandomrandom" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#utilsrandomrandom"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>utils/random.Random</span></h2> <p data-svelte-h="svelte-6ekmkl">Mersenne Twister 19937 PRNG, matching Python’s <code>random.Random</code> class exactly.</p> <p data-svelte-h="svelte-1sy8vrb">Each instance has its own independent state, so seeding one instance does not | |
| affect any other instance or the global helper functions.</p> <p data-svelte-h="svelte-ae5z9g"><strong>Kind</strong>: static class of <a href="#module_utils/random"><code>utils/random</code></a></p> <ul data-svelte-h="svelte-1t945os"><li><a href="#module_utils/random.Random">.Random</a> <ul><li><a href="#new_module_utils/random.Random_new"><code>new Random()</code></a></li> <li><a href="#module_utils/random.Random+seed"><code>.seed([n])</code></a></li> <li><a href="#module_utils/random.Random+_int32"><code>._int32()</code></a> ⇒ <code>number</code></li> <li><a href="#module_utils/random.Random+random"><code>.random()</code></a> ⇒ <code>number</code></li> <li><a href="#module_utils/random.Random+gauss"><code>.gauss([mu], [sigma])</code></a> ⇒ <code>number</code></li> <li><a href="#module_utils/random.Random+shuffle"><code>.shuffle(arr)</code></a></li> <li><a href="#module_utils/random.Random+choices"><code>.choices(population, weights)</code></a> ⇒ <code>*</code></li></ul></li></ul> <hr> <a id="new_module_utils/random.Random_new" class="group"></a> <h3 class="relative group"><a id="new-random" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#new-random"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>new Random()</span></h3> <p data-svelte-h="svelte-1aswmub"><strong>Example</strong></p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START --><span class="hljs-keyword">const</span> rng1 = <span class="hljs-keyword">new</span> <span class="hljs-title class_">Random</span>(<span class="hljs-number">42</span>); | |
| <span class="hljs-keyword">const</span> rng2 = <span class="hljs-keyword">new</span> <span class="hljs-title class_">Random</span>(<span class="hljs-number">42</span>); | |
| rng1.<span class="hljs-title function_">random</span>() === rng2.<span class="hljs-title function_">random</span>(); <span class="hljs-comment">// true (same seed, independent state)</span><!-- HTML_TAG_END --></pre></div> <hr> <a id="module_utils/random.Random+seed" class="group"></a> <h3 class="relative group"><a id="randomseedn" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#randomseedn"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>random.seed([n])</span></h3> <p data-svelte-h="svelte-1or72b8">Seeds this instance’s PRNG.</p> <p data-svelte-h="svelte-1y0tt2k">When called with a number, initializes the state deterministically from that value. | |
| When called with no arguments (or <code>undefined</code>/<code>null</code>), seeds from OS entropy | |
| via <code>crypto.getRandomValues</code>, matching Python’s <code>random.seed()</code> behaviour.</p> <p data-svelte-h="svelte-1ich54x"><strong>Kind</strong>: instance method of <a href="#module_utils/random.Random"><code>Random</code></a></p> <table data-svelte-h="svelte-fhrb8r"><thead><tr><th>Param</th><th>Type</th><th>Description</th></tr></thead> <tbody><tr><td>[n]</td><td><code>number</code></td><td><p>The seed value. Omit to seed from OS entropy.</p></td></tr></tbody></table> <hr> <a id="module_utils/random.Random+_int32" class="group"></a> <h3 class="relative group"><a id="randomint32--number" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#randomint32--number"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>random._int32() ⇒ number</span></h3> <p data-svelte-h="svelte-1ex604">Generates a random unsigned 32-bit integer.</p> <p data-svelte-h="svelte-shh2zc">Performs the “twist” step when the state buffer is exhausted, | |
| then applies the standard MT19937 tempering transform.</p> <p data-svelte-h="svelte-1txra52"><strong>Kind</strong>: instance method of <a href="#module_utils/random.Random"><code>Random</code></a><br> <strong>Returns</strong>: <code>number</code> - A random integer in the range [0, 2^32 - 1].</p> <hr> <a id="module_utils/random.Random+random" class="group"></a> <h3 class="relative group"><a id="randomrandom--number" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#randomrandom--number"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>random.random() ⇒ number</span></h3> <p data-svelte-h="svelte-1mwz4q4">Generates a random floating-point number in the half-open interval [0, 1).</p> <p data-svelte-h="svelte-ycfiw">Combines two 32-bit integers (using 53 bits of precision) to produce | |
| a uniformly distributed double, matching Python’s <code>random.random()</code>.</p> <p data-svelte-h="svelte-54hw9a"><strong>Kind</strong>: instance method of <a href="#module_utils/random.Random"><code>Random</code></a><br> <strong>Returns</strong>: <code>number</code> - A random float in [0, 1).</p> <hr> <a id="module_utils/random.Random+gauss" class="group"></a> <h3 class="relative group"><a id="randomgaussmu-sigma--number" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#randomgaussmu-sigma--number"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>random.gauss([mu], [sigma]) ⇒ number</span></h3> <p data-svelte-h="svelte-lxndcn">Generates a random number from a Gaussian (normal) distribution.</p> <p data-svelte-h="svelte-11tp1xy">Uses the Box-Muller transform with a cached spare value, | |
| matching Python’s <code>random.gauss()</code> output for the same seed.</p> <p data-svelte-h="svelte-1pp0zo8"><strong>Kind</strong>: instance method of <a href="#module_utils/random.Random"><code>Random</code></a><br> <strong>Returns</strong>: <code>number</code> - A normally distributed random value.</p> <table data-svelte-h="svelte-18a7e0g"><thead><tr><th>Param</th><th>Type</th><th>Default</th><th>Description</th></tr></thead> <tbody><tr><td>[mu]</td><td><code>number</code></td><td><code>0</code></td><td><p>The mean of the distribution.</p></td> </tr><tr><td>[sigma]</td><td><code>number</code></td><td><code>1</code></td><td><p>The standard deviation of the distribution.</p></td></tr></tbody></table> <hr> <a id="module_utils/random.Random+shuffle" class="group"></a> <h3 class="relative group"><a id="randomshufflearr" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#randomshufflearr"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>random.shuffle(arr)</span></h3> <p data-svelte-h="svelte-1a7bd4r">Shuffles an array in-place using the Fisher-Yates algorithm.</p> <p data-svelte-h="svelte-1wjf076">Uses rejection sampling via <code>getrandbits</code>-style bit masking to ensure | |
| a uniform distribution, matching Python’s <code>random.shuffle()</code>.</p> <p data-svelte-h="svelte-1ich54x"><strong>Kind</strong>: instance method of <a href="#module_utils/random.Random"><code>Random</code></a></p> <table data-svelte-h="svelte-2h8vns"><thead><tr><th>Param</th><th>Type</th><th>Description</th></tr></thead> <tbody><tr><td>arr</td><td><code>Array</code></td><td><p>The array to shuffle in-place.</p></td></tr></tbody></table> <hr> <a id="module_utils/random.Random+choices" class="group"></a> <h3 class="relative group"><a id="randomchoicespopulation-weights--" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#randomchoicespopulation-weights--"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>random.choices(population, weights) ⇒ *</span></h3> <p data-svelte-h="svelte-utuhcv">Selects a single element from a weighted population.</p> <p data-svelte-h="svelte-1uk4gxp">Matches Python’s <code>random.choices(population, weights=weights, k=1)[0]</code></p> <p data-svelte-h="svelte-6yndvr"><strong>Kind</strong>: instance method of <a href="#module_utils/random.Random"><code>Random</code></a><br> <strong>Returns</strong>: <code>*</code> - A single randomly selected element from the population.</p> <table data-svelte-h="svelte-11gcojv"><thead><tr><th>Param</th><th>Type</th><th>Description</th></tr></thead> <tbody><tr><td>population</td><td><code>Array</code></td><td><p>The array of items to choose from.</p></td> </tr><tr><td>weights</td><td><code>Array</code></td><td><p>An array of non-negative weights, one per population element.</p></td></tr></tbody></table> <hr> <a id="module_utils/random.._weightedIndexWith" class="group"></a> <h2 class="relative group"><a id="utilsrandomweightedindexwithrandomfn-weights--number" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#utilsrandomweightedindexwithrandomfn-weights--number"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>utils/random~_weightedIndexWith(randomFn, weights) ⇒ number</span></h2> <p data-svelte-h="svelte-t98pus">Returns a random index into <code>weights</code>, where each index’s probability | |
| is proportional to its weight. Uses a linear scan: O(n) time, O(1) memory.</p> <p data-svelte-h="svelte-1ro7p0z"><strong>Kind</strong>: inner method of <a href="#module_utils/random"><code>utils/random</code></a><br> <strong>Returns</strong>: <code>number</code> - A randomly selected index in <code>[0, weights.length)</code>.</p> <table data-svelte-h="svelte-nb6b8e"><thead><tr><th>Param</th><th>Type</th><th>Description</th></tr></thead> <tbody><tr><td>randomFn</td><td><code>function</code></td><td><p>A function returning a uniform random float in [0, 1).</p></td> </tr><tr><td>weights</td><td><code>ArrayLike.<number></code></td><td><p>Non-negative weights.</p></td></tr></tbody></table> <hr> <a class="!text-gray-400 !no-underline text-sm flex items-center not-prose mt-4" href="https://github.com/huggingface/transformers.js/blob/main/packages/transformers/docs/source/api/utils/random.md" target="_blank"><svg class="mr-1" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M31,16l-7,7l-1.41-1.41L28.17,16l-5.58-5.59L24,9l7,7z"></path><path d="M1,16l7-7l1.41,1.41L3.83,16l5.58,5.59L8,23l-7-7z"></path><path d="M12.419,25.484L17.639,6.552l1.932,0.518L14.351,26.002z"></path></svg> <span data-svelte-h="svelte-zjs2n5"><span class="underline">Update</span> on GitHub</span></a> <p></p> | |
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