<p>R中的<code>%in%</code>实际上是<code>is.element</code>:</p>
<pre><code>r$> 1 %in% 1:2
[1] TRUE
r$> is.element(1, 1:2)
[1] TRUE
</code></pre>
<p><a href="https://github.com/pwwang/datar" rel="nofollow noreferrer">^{<cd3>}</a>已将R中的一些函数移植到python中:</p>
<pre class="lang-py prettyprint-override"><code>>>> from datar.all import c, f, is_element, filter
>>> from datar.datasets import iris
>>>
>>> iris >> filter(is_element(f.Species, c('setosa', 'virginica')))
Sepal_Length Sepal_Width Petal_Length Petal_Width Species
<float64> <float64> <float64> <float64> <object>
0 5.1 3.5 1.4 0.2 setosa
1 4.9 3.0 1.4 0.2 setosa
2 4.7 3.2 1.3 0.2 setosa
3 4.6 3.1 1.5 0.2 setosa
.. ... ... ... ... ...
4 5.0 3.6 1.4 0.2 setosa
95 6.7 3.0 5.2 2.3 virginica
96 6.3 2.5 5.0 1.9 virginica
97 6.5 3.0 5.2 2.0 virginica
98 6.2 3.4 5.4 2.3 virginica
99 5.9 3.0 5.1 1.8 virginica
[100 rows x 5 columns]
</code></pre>
<p>我是<a href="https://github.com/pwwang/datar" rel="nofollow noreferrer">^{<cd3>}</a>包的作者。如果您有任何问题,请随时提交问题</p>