<p>我正在使用数据帧标题<code>price_df</code>。我想从<code>drive-wheels</code>列中删除包含<code>'4wd'</code>的行。在阅读了pandas中的docs页面后,我尝试了<code>price_df2 = price_df.drop(index='4wd', axis=0)</code>和其他一些变体,但仍然会得到错误代码。有人能告诉我从列和数据框中删除包含值<code>4wd</code>的行的正确方法吗?以下是我在尝试删除值之前运行的代码:</p>
<pre><code># Cleaned up Dataset location
fileName = "https://library.startlearninglabs.uw.edu/DATASCI410/Datasets/Automobile%20price%20data%20_Raw_.csv"
# Import libraries
from scipy.stats import norm
import numpy as np
import pandas as pd
import math
import numpy.random as nr
price_df = pd.read_csv(fileName)
round(price_df.head(),2) #getting an overview of that data
price_df.loc[:,'drive-wheels'].value_counts()
price_df2 = price_df.drop(index='4wd', axis=0)
</code></pre>