eventstudy2 "variable __00001M already defined”

[Wilson Tukiainen]

Hello!
I am doing an eventstudy using eventstudy2 and I get the error message "variable __00001M already defined”.
What could be the issue?

Code:

eventstudy2 stockid date using stock_returns,returns(returnz) model(FM) marketfile(index_returns) marketreturn(returnz) idmarket(marketid) evwlb(-10) evwub(10) eswlb(-250) eswub(-21)

[George Ford]

mostly likely a tempvar has been created that has not been deleted.

try drop *00001M

and run it again,

if fails again,

set trace on

and see if you can find the line that's causing the problem.

[Devra Golbe]

maybe this thread on the saving of temporary variables will shed some light.

[Isaac Zhang]

you have same column names for market and stock return. change one of them.