change index of dataframe code example
Example 1: set index to column pandas
df = df.set_index('col')
df['col'] = df.index
Example 2: pandas create a column from index
df.reset_index(level=0, inplace=True)
Example 3: how to change indeces in pandas dataframe
>>> df.set_index('month')
year sale
month
1 2012 55
4 2014 40
7 2013 84
10 2014 31
Example 4: set index in datarame
df = df.set_index('col')
Example 5: change dataframe value by index
x y
A NaN NaN
B NaN NaN
C NaN NaN
df.at['C', 'x'] = 10
Example 6: how to change index in dataframe python
index = [1,2]
df.index = index