python开发之Pandas

 

正确的对DataFrame reverse运算

data.reindex(index=data.index[::-1])
or simply:
data.iloc[::-1]

will reverse your data frame, if you want to have a for loop which goes from down to up you may do:

for idx in reversed(data.index):
    print(idx, data.loc[idx, 'Even'], data.loc[idx, 'Odd'])
or
for idx in reversed(data.index):
    print(idx, data.Even[idx], data.Odd[idx])