如何在pandas.groupby函数中为每个组创建一个数据框？

Question

I have a data frame which has been grouped by 'hour'. I want to use a for loop which loops through each group and creates a data frame for each group. The code I'm using at the moment only creates a data frame for the last group that it iterates through. Any suggestions on how I can get it to work properly?

for name, group in data.groupby('hour'):
    d = {'group_' + str(name) : group}

Answer 1

You're overwriting your object each time you want this:

d = {}
for name, group in data.groupby('hour'):
    d['group_' + str(name)] = group