如何将“计数”列的值转换为绝对值？
我的数据框的摘要如下：
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
Use pandas.DataFrame.abs() http://pandas.pydata.org/pandas-docs/dev/generated/pandas.DataFrame.abs.html.
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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