Hello everyone. I am using esttab to make a table (in .tex) in which I have several columns in a row with the same dependent variable. I would like to have the dependent variable span multiple columns. I know I can use the "mgroups" command to do this, but the only way I can figure out how to tell stata the names of the dependent variables is to enter them manually ("price" and "weight" in the code below).

sysuse auto, clear
local i=1
foreach var of varlist weight price{
quietly reg `var' mpg
estimates store m`i', title("`:variable label `var''")
quietly reg `var' mpg foreign
estimates store m`i', title("`:variable label `var''")
local i=`i'+1
}
esttab m1 m2 m3 m4 using "C:\Users\rmheath\Documents\example.tex", tex label replace ///
nomtitle collabels(none) mgroups("weight" "price", pattern(1 0 1 0) prefix(\multicolumn{@span}{c}{) suffix(}) span erepeat(\cmidrule(lr){@span}))

I would love to find a way to tell mgroups to reference the title of the estimation, so that I don't have to go back manually and change the headings listed in mgroups if I change the dependent variables in a regression. Can anyone figure out how to do this?

thank you in advance if anyone can help!
Rachel