I suspect my last email didn't get through since I can't get it in my outbox and can't find it in the archives. I'm re-sending it hoping it will work this time.
Apologies if it's a duplicate. Thanks.
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Hi all,
I'm trying to figure out how to incorporate a combination number when filling out a table. I've attached a little program that I've been using to test what I'm trying to do (the code is part of a bigger program).
Here's my attempt at trying to explain the problem:
Essentially, the program creates log(var) and unique pairwise combinations of log(var i)-log(var j) where i != j.
The program also creates lcol1 to lcolnum60 and lrcolnum1 to lrcolnum60, which are variables that are meant to store a lot of stuff as part of the bigger program.
lcolnum* and lrcolnum* essentially build a table of results. I want to have the names of the log(variables) and combinations of log ratios (log(vari)-log(varj)) in the first column of lcolnum or lrcolnum, i.e. in lcolnum1 and lrcolnum1. Notice that I leave the first two rows blank because other stuff goes in there as part of the bigger program.
The program successfully does this for each log(var) - i.e. lcolnum1 - but the pairwise combinations are a bit trickier. I'm trying to get something that tells me the combination number (I've called it "obsrow") so that I can add 2 to it and fill out lrcolnum1.
If anyone has any ideas I'd appreciate them shooting them my way.
Thanks!
Rodrigo
Here's the code:
*************************************************************************************************
capture program drop fillit
capture drop l*
program define fillit
syntax varlist
local nvars : word count `varlist'
forvalues i = 1/60{
qui gen lcolnum`i' = ""
}
qui replace lcolnum1 = "" in 1
qui replace lcolnum1 = "" in 2
**********4.1B Generate output space for results******
forvalues i = 1/60{
qui gen lrcolnum`i' = ""
}
qui replace lrcolnum1 = "" in 1
qui replace lrcolnum1 = "" in 2
foreach var of local varlist{
qui gen log_`var'=log(`var')
}
forvalues i = 1/`nvars'{
local s = `i'+2
qui replace lcolnum1 = "log_``i''" in `s'
}
******************This part creates unique pairwise combinations of variables in varlist and places the name in the first column********
forvalues i=1/`nvars'{
local ii=`i'+1
forvalues j=`ii'/`nvars'{
gen log_``i''_vs_log_``j''=log(``i'')-log(``j'')
***Here is where my problem comes up. I want obsrow to be the combination number +2 but I can't figure out how to do it. I'd appreciate a hand :=)****
*local obsrow = (combination number)+2
*replace lrcolnum1 = "log_``i''_vs_log_``j''" in `obsrow'
}
}
end
************************************************************************************************
Rodrigo Martell
<http://www.frontier-economics.com>
Frontier Economics Pty. Ltd.
395 Collins Street
Melbourne VIC 3000
Australia
www.frontier-economics.com
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