st: Syntax error with Syntax itself

[Pradipto Banerjee <pradipto.banerjee@adainvestments.com>]

Hi, I am writing an egen function

program define _gmakesigwgt
version 9.2
gettoken type 0 : 0
gettoken g      0 : 0
gettoken eqs 0 : 0
syntax varlist (min=2) [, BY(string) BReaks(integer) GOODliq(numeric)]
.
.
.
end


I've been debugging it using set trace on (set tracedepth 2). I tried calling it as

. egen var2 = makesigwgt (var1 var2 var3), by(var4)

The debug shows me that there is an -error 197-, i.e. error with the syntax statement itself. The exact error output is:

- syntax varlist (min=2) [, BY(string) BReaks(integer) GOODliq(numeric)]
invalid syntax
r(197)


I can't understand what might be the error. Can someone give any suggestions?

Thanks.



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