Python中列的绝对值 [英] Absolute value for column in Python

问题描述

如何将计数"列的值转换为绝对值?

How could I convert the values of column 'count' to absolute value?

我的数据框摘要:

             datetime   count
0   2011-01-20 00:00:00 14.565996
1   2011-01-20 01:00:00 10.204177
2   2011-01-20 02:00:00 -1.261569
3   2011-01-20 03:00:00 1.938322
4   2011-01-20 04:00:00 1.938322
5   2011-01-20 05:00:00 -5.963259
6   2011-01-20 06:00:00 73.711525

推荐答案

使用 pandas.DataFrame.abs() .

import pandas as pd

df = pd.DataFrame(data={'count':[1, -1, 2, -2, 3, -3]})

df['count'] = df['count'].abs()

print(df)
   count
#0      1
#1      1
#2      2
#3      2
#4      3
#5      3

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