擅长:python、mysql、java
<p>您可以简单地执行以下操作:</p>
<pre><code>def Build_Data_Set(features = ["DE Ratio","Trailing P/E"]):
data_df = pd.read_csv("key_stats.csv") #created in other file
X = data_df[features].values # already returns an array
y = data_df["Status"].replace({"underperform": 0, "outperform":1}).values
return X,y
df = Build_Data_Set()
</code></pre>