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<html><head><meta charset="UTF-8" /><title>tech.v3.dataset.bzip2 documentation</title><script async="true" src="https://www.googletagmanager.com/gtag/js?id=G-RGTB4J7LGP"></script><script>window.dataLayer = window.dataLayer || [];
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class="tree"><span class="top"></span><span class="bottom"></span></span><span>poi</span></div></a></li><li class="depth-4"><div class="no-link"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>smile</span></div></div></li><li class="depth-5"><a href="tech.v3.libs.smile.data.html"><div class="inner"><span class="tree"><span class="top"></span><span class="bottom"></span></span><span>data</span></div></a></li><li class="depth-4"><a href="tech.v3.libs.tribuo.html"><div class="inner"><span class="tree" style="top: -52px;"><span class="top" style="height: 61px;"></span><span class="bottom"></span></span><span>tribuo</span></div></a></li></ul></div><div class="sidebar secondary"><h3><a href="#top"><span class="inner">Public Vars</span></a></h3><ul></ul></div><div class="namespace-docs" id="content"><h1 class="anchor" id="top">tech.v3.dataset.bzip2</h1><div class="doc"><div class="markdown"><p>API for reading/writing a single dataset to/from a bzip2 file. File must
only contain one entry.</p>
<p>You must have apache commons-compress included as part of your project to
load this namespace. Many projects already include commons-compress so manually
including it may not be necessary for your system.</p>
<p>Also note that version before 1.21 have several known vulnerabilities.</p>
<pre><code class="language-clojure"> org.apache.commons/commons-compress {:mvn/version "1.21"}
</code></pre>
<h3>Usage</h3>
<pre><code class="language-clojure">user> (require '[tech.v3.dataset :as ds])
nil
user> (require '[tech.v3.dataset.bzip2])
nil
user> (def stocks (ds/->dataset "test/data/stocks.csv"))
#'user/stocks
user> (ds/write! stocks "test/data/stocks.csv.bz2")
nil
user> (ds/head (ds/->dataset "test/data/stocks.csv.bz2"))
test/data/stocks.csv.bz2 [5 3]:
| symbol | date | price |
|--------|------------|------:|
| MSFT | 2000-01-01 | 39.81 |
| MSFT | 2000-02-01 | 36.35 |
| MSFT | 2000-03-01 | 43.22 |
| MSFT | 2000-04-01 | 28.37 |
| MSFT | 2000-05-01 | 25.45 |
</code></pre>
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