Answers for "dataframe set index from column"

3

how to set index pandas

# assignment copy
df = df.set_index('month')

# or inplace
df.set_index('month', inplace=True)

#      year   sale  month            month  year   sale
#  0   2012   55    1                1      2012   55
#  1   2014   40    4       =>       4      2014   40
#  2   2013   84    7                7      2013   84
#  3   2014   31    10               10     2014   31
Posted by: Guest on March-15-2021
5

change dataframe value by index

x    y
A  NaN  NaN
B  NaN  NaN
C  NaN  NaN

df.at['C', 'x'] = 10
Posted by: Guest on May-16-2020
5

how to change index in dataframe python

index = [1,2]
df.index = index
Posted by: Guest on April-23-2020

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