///
Did you try something like this?
forvalues i=1/130 {
forvalues j=1980/2005 {
cap reg y x if id==`i' & year==`j'
if _rc==0 {
reg
}
}
}
Rodrigo.
________________________________
De: [email protected]
[mailto:[email protected]] En nombre de Indrit Hoxha
Enviado el: Jueves, 10 de Julio de 2008 12:35 a.m.
Para: [email protected]
Asunto: st: problem with missing data in a loop
I am sorry for sending many times but my code was broken somehow in the
previous emails.
I have a panel dataset with countries and years. I am trying to do some
overlapping regressions for every country in windows of 5 years. I want
these 5 years to be overlapping so for example for United States, I want
the first regression to be for 1980-1984, the second 1981-1985, third
1982-1986 and goes on like this. I have used loop within a loop to do
this. As you can see from the do file below
"i" stands for countries and "j" stands for years
local i=1
while `i'<131 {
local j=1980
while `j'< 2006 {
reg y x1 x2 x3 if cc==`i' & (year==`j'|year ==`j'+1|year ==`j'+2|year
==`j'+3|year ==`j'+4)
local j= `j'+1
}
local i= `i'+1
}
However I have missing data for some countries and years, so when the
loop starts if it does not find any data for the first country and/or
first group of years the do file stops.
I have tried to use capture command, but still was unable to make the
loop work.
Could someone help me out here, how should I do these regressions.
I'd really appreciate any help .
Indrit Hoxha
Univesity of Houston
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