如何过滤熊猫中的列？

Question

i have a big dataset with more than 80 columns.

I wish to get a subset from dataset including the second column and columns from 10 to 40.

I know dt.iloc[:,10:40] gives me the column from 10 to 40 .

The question is, what is the easiest way to also include the second column to this subset as well?

Answer 1

使用np.r_

dt.iloc[:,np.r_[1,10:40]]