st: A loop for each couple of variables (instead of for each variable)

[Fabien Bertho <fabien.bertho@sciences-po.org>]

Hi,

I created a loop in order to estimate various specifications of my model

foreach variables in ""var_1 var_2 {
reg dep_var control_var `variables’
}

Now, I would like to run this loop not for two variables but for two locals that comprises two variables. I tried the following code.

local local_1 “var_1 var_2”
local local_2 “var_3 var_4”
foreach local_variables in ""`local_1’ ` var_2’ {
reg dep_var control_var `local_variables’
}

But it does not work because during the loop Stata splits my local into two variables… 
Do you think that it is possible to estimate a loop for each couple of variables instead of for each variable? How can I do this?

Thank you.

Fabien


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