基于索引从熊猫数据帧创建列表

Question

I have a datafarme with the following set up.

Product Clol1   Col2    Col3
pen       2     5       8
paper     6     7       4
shrpener  0     7       9

I want create list with the values for the index. = "paper". Out put would be [6,7,4]

How can I do it?

Answer 1

You could transpose your DataFrame and then select the desired column (ex row):

transposed_df = df.transpose()
result = transposed_df['paper']

Answer 2

使用DataFrame.loc按标签选择行并将Series转换为列表，我认为转置不是必需的（而且速度也更慢）：

out = df.loc['paper'].tolist()