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python-cheatsheet
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Jure Šorn 3 months ago
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  1. 1
      README.md
  2. 5
      index.html

1
README.md
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@ -3375,6 +3375,7 @@ c 6 7
```python ```python
<GB> = <DF>.groupby(col_key/s) # Splits DF into groups based on passed column. <GB> = <DF>.groupby(col_key/s) # Splits DF into groups based on passed column.
<DF> = <GB>.apply(<func>) # Maps each group. Func can return DF, S or el. <DF> = <GB>.apply(<func>) # Maps each group. Func can return DF, S or el.
<DF> = <GB>.filter(<func>) # Drops a group if function returns False.
<DF> = <GB>.get_group(<el>) # Selects a group by grouping column's value. <DF> = <GB>.get_group(<el>) # Selects a group by grouping column's value.
<S> = <GB>.size() # S of group sizes. Same keys as get_group(). <S> = <GB>.size() # S of group sizes. Same keys as get_group().
<GB> = <GB>[col_key] # Single column GB. All operations return S. <GB> = <GB>[col_key] # Single column GB. All operations return S.

5
index.html
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@ -55,7 +55,7 @@
<body> <body>
<header> <header>
<aside>November 28, 2024</aside>
<aside>November 29, 2024</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a> <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</header> </header>
@ -2747,6 +2747,7 @@ c <span class="hljs-number">6</span> <span class="hljs-number">7</span>
</ul> </ul>
<div><h3 id="groupby">GroupBy</h3><p><strong>Object that groups together rows of a dataframe based on the value of the passed column.</strong></p><pre><code class="python language-python hljs">&lt;GB&gt; = &lt;DF&gt;.groupby(col_key/s) <span class="hljs-comment"># Splits DF into groups based on passed column.</span> <div><h3 id="groupby">GroupBy</h3><p><strong>Object that groups together rows of a dataframe based on the value of the passed column.</strong></p><pre><code class="python language-python hljs">&lt;GB&gt; = &lt;DF&gt;.groupby(col_key/s) <span class="hljs-comment"># Splits DF into groups based on passed column.</span>
&lt;DF&gt; = &lt;GB&gt;.apply(&lt;func&gt;) <span class="hljs-comment"># Maps each group. Func can return DF, S or el.</span> &lt;DF&gt; = &lt;GB&gt;.apply(&lt;func&gt;) <span class="hljs-comment"># Maps each group. Func can return DF, S or el.</span>
&lt;DF&gt; = &lt;GB&gt;.filter(&lt;func&gt;) <span class="hljs-comment"># Drops a group if function returns False.</span>
&lt;DF&gt; = &lt;GB&gt;.get_group(&lt;el&gt;) <span class="hljs-comment"># Selects a group by grouping column's value.</span> &lt;DF&gt; = &lt;GB&gt;.get_group(&lt;el&gt;) <span class="hljs-comment"># Selects a group by grouping column's value.</span>
&lt;S&gt; = &lt;GB&gt;.size() <span class="hljs-comment"># S of group sizes. Same keys as get_group().</span> &lt;S&gt; = &lt;GB&gt;.size() <span class="hljs-comment"># S of group sizes. Same keys as get_group().</span>
&lt;GB&gt; = &lt;GB&gt;[col_key] <span class="hljs-comment"># Single column GB. All operations return S.</span> &lt;GB&gt; = &lt;GB&gt;[col_key] <span class="hljs-comment"># Single column GB. All operations return S.</span>
@ -2923,7 +2924,7 @@ $ deactivate <span class="hljs-comment"># Deactivates the active
<footer> <footer>
<aside>November 28, 2024</aside>
<aside>November 29, 2024</aside>
<a href="https://gto76.github.io" rel="author">Jure Šorn</a> <a href="https://gto76.github.io" rel="author">Jure Šorn</a>
</footer> </footer>

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