Howdy.
I'm running Intercooled Stata 7.0 for Windows 98 (born 11 June 2002)
and in the process of making a mistake, discovered that I don't understand something fundamental about how Stata evaluates the value list in a -forval- statement.
I wanted to associate previous year's personal income with current year spending in an 11-year panel dataset (shaped wide), so I wrote the following -forval- statement:
forval i=75/85 {
gen double peryt`i+1' = pery`i';
};
The code assigned peryt* = pery* and did not increment peryt by one year (see example below).
Question: what did peryt`i+1' mean to Stata?
state Arizona pery75 11908000
pery76 13370000 pery77 14871000 pery78 17586000
pery79 20973000 pery80 24057000 pery81 27559000
pery82 29068000 pery83 31916000 pery84 36900000
pery85 40900000 pery86 44900000 peryt75 11908000
peryt76 13370000 peryt77 14871000 peryt78 17586000
peryt79 20973000 peryt80 24057000 peryt81 27559000
peryt82 29068000 peryt83 31916000 peryt84 36900000
peryt85 40900000
Thanks for your help,
Deb Garvey
******************************
Deborah Garvey, Ph.D.
Department of Economics
Kenna Hall
Santa Clara University
Santa Clara, CA 95053
408/554-5580
408/554-2331 (FAX)
[email protected]
http://lsb.scu.edu/~dgarvey
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