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st: Stacking variables

From   Nima Darbari <>
Subject   st: Stacking variables
Date   Mon, 16 Dec 2013 12:37:35 +0100

Dear All
To stack 55 variables (each with 371 observations) I wrote the code
below but for some 'invalid syntax' error it didn't work.

gen PreEventTurnover=.
foreach var of PreturnoverEvent1-PreturnoverEvent55{
local first=((real(substr("`var'",17,2))*371)-370)
local last=(real(substr("`var'",17,2))*371)
local c=1
forvalues d=`first'(1)`last'{
replace PreEventTurnover= `var'[`c'] in `d'
local c=`c'+1

Of, course later on I learned how to use the 'stack' command for the
purpose but I am still interested to know why did I receive 'invalid
syntax' for the code above. Can anyone help?
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