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<!-- Generated by pkgdown: do not edit by hand --><html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><meta name="description" content="Split to chunks of size n"><title>Split to chunks of size n — chunks_of_n • stRoke</title><!-- favicons --><link rel="icon" type="image/png" sizes="16x16" href="../favicon-16x16.png"><link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png"><link rel="apple-touch-icon" type="image/png" sizes="180x180" href="../apple-touch-icon.png"><link rel="apple-touch-icon" type="image/png" sizes="120x120" href="../apple-touch-icon-120x120.png"><link rel="apple-touch-icon" type="image/png" sizes="76x76" href="../apple-touch-icon-76x76.png"><link rel="apple-touch-icon" type="image/png" sizes="60x60" href="../apple-touch-icon-60x60.png"><script src="../deps/jquery-3.6.0/jquery-3.6.0.min.js"></script><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><link href="../deps/bootstrap-5.2.2/bootstrap.min.css" rel="stylesheet"><script src="../deps/bootstrap-5.2.2/bootstrap.bundle.min.js"></script><!-- Font Awesome icons --><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/all.min.css" integrity="sha256-mmgLkCYLUQbXn0B1SRqzHar6dCnv9oZFPEC1g1cwlkk=" crossorigin="anonymous"><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/v4-shims.min.css" integrity="sha256-wZjR52fzng1pJHwx4aV2AO3yyTOXrcDW7jBpJtTwVxw=" crossorigin="anonymous"><!-- bootstrap-toc --><script src="https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@v1.0.1/dist/bootstrap-toc.min.js" integrity="sha256-4veVQbu7//Lk5TSmc7YV48MxtMy98e26cf5MrgZYnwo=" crossorigin="anonymous"></script><!-- headroom.js --><script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/headroom.min.js" integrity="sha256-AsUX4SJE1+yuDu5+mAVzJbuYNPHj/WroHuZ8Ir/CkE0=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/jQuery.headroom.min.js" integrity="sha256-ZX/yNShbjqsohH1k95liqY9Gd8uOiE1S4vZc+9KQ1K4=" crossorigin="anonymous"></script><!-- clipboard.js --><script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.6/clipboard.min.js" integrity="sha256-inc5kl9MA1hkeYUt+EC3BhlIgyp/2jDIyBLS6k3UxPI=" crossorigin="anonymous"></script><!-- search --><script src="https://cdnjs.cloudflare.com/ajax/libs/fuse.js/6.4.6/fuse.js" integrity="sha512-zv6Ywkjyktsohkbp9bb45V6tEMoWhzFzXis+LrMehmJZZSys19Yxf1dopHx7WzIKxr5tK2dVcYmaCk2uqdjF4A==" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/autocomplete.js/0.38.0/autocomplete.jquery.min.js" integrity="sha512-GU9ayf+66Xx2TmpxqJpliWbT5PiGYxpaG8rfnBEk1LL8l1KGkRShhngwdXK1UgqhAzWpZHSiYPc09/NwDQIGyg==" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/mark.js/8.11.1/mark.min.js" integrity="sha512-5CYOlHXGh6QpOFA/TeTylKLWfB3ftPsde7AnmhuitiTX4K5SqCLBeKro6sPS8ilsz1Q4NRx3v8Ko2IBiszzdww==" crossorigin="anonymous"></script><!-- pkgdown --><script src="../pkgdown.js"></script><meta property="og:title" content="Split to chunks of size n — chunks_of_n"><meta property="og:description" content="Split to chunks of size n"><meta property="og:image" content="https://agdamsbo.github.io/stRoke/logo.png"><!-- mathjax --><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js" integrity="sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js" integrity="sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA=" crossorigin="anonymous"></script><!--[if lt IE 9]>
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<main id="main" class="col-md-9"><div class="page-header">
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<img src="../logo.png" class="logo" alt=""><h1>Split to chunks of size n</h1>
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<small class="dont-index">Source: <a href="https://github.com/agdamsbo/stRoke/blob/HEAD/R/chunks_of_n.R" class="external-link"><code>R/chunks_of_n.R</code></a></small>
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<div class="d-none name"><code>chunks_of_n.Rd</code></div>
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</div>
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<div class="ref-description section level2">
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<p>Split to chunks of size n</p>
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</div>
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<div class="section level2">
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<h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
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<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">chunks_of_n</span><span class="op">(</span><span class="va">d</span>, <span class="va">n</span>, label <span class="op">=</span> <span class="cn">NULL</span>, even <span class="op">=</span> <span class="cn">FALSE</span>, pattern <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></span></code></pre></div>
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</div>
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<div class="section level2">
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<h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
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<dl><dt>d</dt>
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<dd><p>data. Can be vector or data frame.</p></dd>
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<dt>n</dt>
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<dd><p>number of chunks</p></dd>
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<dt>label</dt>
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<dd><p>naming prefix for chunk names</p></dd>
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<dt>even</dt>
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<dd><p>boolean to set if size of chunks should be evenly distributed.</p></dd>
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<dt>pattern</dt>
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<dd><p>regex pattern to extract names from provided vector. If data
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frame, will assume first column is name.</p></dd>
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</dl></div>
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<div class="section level2">
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<h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
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<p>List of length n</p>
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</div>
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<div class="section level2">
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<h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
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<div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/head.html" class="external-link">tail</a></span><span class="op">(</span><span class="fu">chunks_of_n</span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/seq.html" class="external-link">seq_len</a></span><span class="op">(</span><span class="fl">100</span><span class="op">)</span>,<span class="fl">7</span><span class="op">)</span>,<span class="fl">3</span><span class="op">)</span></span></span>
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<span class="r-out co"><span class="r-pr">#></span> $`13`</span>
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<span class="r-out co"><span class="r-pr">#></span> [1] 85 86 87 88 89 90 91</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-out co"><span class="r-pr">#></span> $`14`</span>
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<span class="r-out co"><span class="r-pr">#></span> [1] 92 93 94 95 96 97 98</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-out co"><span class="r-pr">#></span> $`15`</span>
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<span class="r-out co"><span class="r-pr">#></span> [1] 99 100</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/head.html" class="external-link">tail</a></span><span class="op">(</span><span class="fu">chunks_of_n</span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/seq.html" class="external-link">seq_len</a></span><span class="op">(</span><span class="fl">100</span><span class="op">)</span>,<span class="fl">7</span>,even<span class="op">=</span><span class="cn">TRUE</span><span class="op">)</span>,<span class="fl">3</span><span class="op">)</span></span></span>
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<span class="r-out co"><span class="r-pr">#></span> $`13`</span>
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<span class="r-out co"><span class="r-pr">#></span> [1] 83 84 85 86 87 88</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-out co"><span class="r-pr">#></span> $`14`</span>
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<span class="r-out co"><span class="r-pr">#></span> [1] 89 90 91 92 93 94</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-out co"><span class="r-pr">#></span> $`15`</span>
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<span class="r-out co"><span class="r-pr">#></span> [1] 95 96 97 98 99 100</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-in"><span><span class="va">ds</span> <span class="op"><-</span> <span class="fu"><a href="https://rdrr.io/r/base/data.frame.html" class="external-link">data.frame</a></span><span class="op">(</span>nm<span class="op">=</span><span class="fu"><a href="https://rdrr.io/r/base/paste.html" class="external-link">paste0</a></span><span class="op">(</span><span class="st">"Sub"</span>,</span></span>
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<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/sprintf.html" class="external-link">sprintf</a></span><span class="op">(</span><span class="st">"%03s"</span>, <span class="fu"><a href="https://rdrr.io/r/base/colnames.html" class="external-link">rownames</a></span><span class="op">(</span><span class="fu">stRoke</span><span class="fu">::</span><span class="va"><a href="talos.html">talos</a></span><span class="op">)</span><span class="op">)</span><span class="op">)</span>,<span class="fu">stRoke</span><span class="fu">::</span><span class="va"><a href="talos.html">talos</a></span><span class="op">)</span></span></span>
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<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/head.html" class="external-link">head</a></span><span class="op">(</span><span class="fu">chunks_of_n</span><span class="op">(</span><span class="va">ds</span>,<span class="fl">7</span>,pattern<span class="op">=</span><span class="st">"Sub[0-9]{3}"</span>,label<span class="op">=</span><span class="st">"grp"</span><span class="op">)</span>,<span class="fl">2</span><span class="op">)</span></span></span>
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<span class="r-out co"><span class="r-pr">#></span> $`grp-NA-NA`</span>
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<span class="r-out co"><span class="r-pr">#></span> nm rtreat mrs_1 mrs_6 hypertension diabetes civil</span>
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<span class="r-out co"><span class="r-pr">#></span> 38 Sub 38 Active 1 1 no no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 434 Sub434 Active 1 1 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 588 Sub588 Active 2 2 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 42 Sub 42 Active 0 0 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 160 Sub160 Placebo 1 1 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 174 Sub174 Active 0 1 yes no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 11 Sub 11 Placebo 2 1 yes yes alone</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-out co"><span class="r-pr">#></span> $`grp-Sub601-NA`</span>
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<span class="r-out co"><span class="r-pr">#></span> nm rtreat mrs_1 mrs_6 hypertension diabetes civil</span>
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<span class="r-out co"><span class="r-pr">#></span> 601 Sub601 Placebo 1 1 no no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 412 Sub412 Active 0 0 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 88 Sub 88 Placebo 1 1 yes yes partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 56 Sub 56 Placebo 0 0 no no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 235 Sub235 Placebo 2 1 yes yes alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 205 Sub205 Active 3 3 no no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 62 Sub 62 Active 2 2 yes no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-in"><span><span class="co">## Please notice that no sorting is performed. This is on purpose to preserve</span></span></span>
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<span class="r-in"><span><span class="co">## original sorting. If sorting is intended, try something like this:</span></span></span>
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<span class="r-in"><span><span class="va">ds</span><span class="op">[</span><span class="fu"><a href="https://rdrr.io/r/base/order.html" class="external-link">order</a></span><span class="op">(</span><span class="va">ds</span><span class="op">$</span><span class="va">nm</span><span class="op">)</span>,<span class="op">]</span> <span class="op">|></span> <span class="fu">chunks_of_n</span><span class="op">(</span><span class="fl">7</span>,pattern<span class="op">=</span><span class="st">"Sub[0-9]{3}"</span>,label<span class="op">=</span><span class="st">"grp"</span><span class="op">)</span> <span class="op">|></span> </span></span>
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||
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<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/head.html" class="external-link">head</a></span><span class="op">(</span><span class="fl">2</span><span class="op">)</span></span></span>
|
||
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<span class="r-out co"><span class="r-pr">#></span> $`grp-NA-NA`</span>
|
||
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<span class="r-out co"><span class="r-pr">#></span> nm rtreat mrs_1 mrs_6 hypertension diabetes civil</span>
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<span class="r-out co"><span class="r-pr">#></span> 1 Sub 1 Placebo 0 0 yes no partner</span>
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||
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<span class="r-out co"><span class="r-pr">#></span> 2 Sub 2 Placebo 2 1 no no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 7 Sub 7 Placebo 1 1 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 9 Sub 9 Placebo 1 1 no no partner</span>
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||
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<span class="r-out co"><span class="r-pr">#></span> 11 Sub 11 Placebo 2 1 yes yes alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 13 Sub 13 Active 1 1 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 20 Sub 20 Placebo 1 2 no no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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<span class="r-out co"><span class="r-pr">#></span> $`grp-NA-NA`</span>
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<span class="r-out co"><span class="r-pr">#></span> nm rtreat mrs_1 mrs_6 hypertension diabetes civil</span>
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<span class="r-out co"><span class="r-pr">#></span> 22 Sub 22 Placebo 2 1 no no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 26 Sub 26 Placebo 2 4 no no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 28 Sub 28 Active 2 2 yes no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> 29 Sub 29 Placebo 2 2 no no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 33 Sub 33 Placebo 0 0 yes no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 34 Sub 34 Active 1 1 no no alone</span>
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<span class="r-out co"><span class="r-pr">#></span> 38 Sub 38 Active 1 1 no no partner</span>
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<span class="r-out co"><span class="r-pr">#></span> </span>
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</code></pre></div>
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