PYTHON

reverse row order pandas

import pandas as pd

df = pd.DataFrame({'a':[1,2,3],
                   'b':[4,5,6,],
                   'c':[7,8,9,]})

df_col_reversed = df.loc[:, ::-1] # reverse column order
df_row_reversed = df.loc[::-1, :] # reverse row order

reverse order of dataframe rows

# Reverse row order
data_reversed = data[::-1]