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st: Re: forval question again

From   "Martin Weiss" <>
To   <>
Subject   st: Re: forval question again
Date   Wed, 11 Feb 2009 19:23:22 +0100


input start_year end_year
1980 1983
1981 1984
1980 1983
su start_year, mean
loc min=r(min)
su end_year, mean
loc minend=r(min)
forv i=`min'/`minend'{
di in red `i'

Martin _______________________ ----- Original Message ----- From: "Rike" <>
To: "statalist" <>
Sent: Wednesday, February 11, 2009 7:06 PM
Subject: st: forval question again

Dear all,

this is a follow up question on the one right below.

I have tried

forval x = start_year[1]/end_year[1] {


but it gives me the invalid syntax error.

As for using r(min) and r(max) as per Martin's suggestion, I don't
think it will work because start_year and end_year are two different
variables. Any other ideas? Here is my question again:

I want forval to loop over the (min) value of two variables. More
specifically, there is a variable called start_year and another called
end_year and what I want is something like this:

forval x = start_year / end_year  {

The variables have all the same value but i want to repeat the same
codes across different samples that have varying starting and ending
years. This is why I don't want to put the years in numbers as this
would create a lot more work.

Is there a way to do this?

Thanks in advance.
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