擅长:python、mysql、java
<p>我找到了<a href="https://github.com/coursera/pandas-ply" rel="nofollow noreferrer">pandas-ply</a>,它为此引入了一个神奇的符号<code>X</code>:</p>
<pre><code>import pandas as pd
from pandas_ply import X, install_ply
install_ply(pd)
df\
.drop("Gene type", axis=1)\
.rename(columns = {
"Gene stable ID": "ENSG",
"Gene name": "gene_name",
"miRBase accession": "MI",
"miRBase ID": "mirna_name"
})\
.ply_select("*", species = X.mirna_name.str[:3])
</code></pre>
<p>不过,如果能在本地的大熊猫身上找到这个,那就太好了。在</p>