Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: how do you subtract the value of one group from the value of another group?
From
Ken Ning <[email protected]>
To
[email protected]
Subject
st: how do you subtract the value of one group from the value of another group?
Date
Mon, 19 Aug 2013 20:43:42 +0100
Hi statausers
how do you subtract the value of one group from the value of another group?
e.g. if i want to substract the value of group 2 (value= 11 in 2001
and 12 in 2002) from group1 (value= 7 in 2001 and 8 in 2002) year by
year? so this needs to be 11-7 and 12-8 and listed next to the value
of group 2
id year value (minus value)
1 2001 7 .
1 2001 7 .
1 2001 7 .
1 2002 8 .
1 2002 8 .
1 2002 8 .
2 2001 11 x (need to get)
2 2001 11 x
2 2001 11 x
2 2002 12 x
2 2002 12 x
2 2002 12 x
Many thanks
Ken
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/