I suggest that you read the vignette for the data table package. That package
uses some odd syntax compared to base R but has some features designed
especially for these kinds of problems.
--
Sent from my phone. Please excuse my brevity.
On March 24, 2018 5:03:44 PM PDT, M Can wrote:
>Hello
>
Hello
I have been struggling with this simple looking problem. I have two
dataframes. The first one contains ID, date, and revenue information for
specific suppliers.
id lastdate depvar
A 5/10/2017 10
B 8/16/2017 20
C 2/14/2017 30
D 9/5/2017 40
E 8/1/2017 50
F 11/4/2017 60
G 6/22/2017 70
The secon
2 matches
Mail list logo
