In [8]:
df
.
set_index
(
'UserId'
,
inplace
=
True
)
df
.
head
()
Out[8]:
OrderId
OrderDate
OrderPeriod
UserId
47
262
2009-01-11
2009-01
47
278
2009-01-20
2009-01
47
294
2009-02-03
2009-02
47
301
2009-02-06
2009-02
47
302
2009-02-06
2009-02