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st: nlcheck - error: not sorted
From
Barbara Engels <[email protected]>
To
[email protected]
Subject
st: nlcheck - error: not sorted
Date
Tue, 5 Jul 2011 13:38:25 +0200
Dear Statalist,
testing for non-linearity, I conduct the nlcheck test, putting the the nlcheck command and the independent variable in question right after the regression.Stata, however, tells me the independent variable is "not sorted" (although it is ; and after another "sort" it is still "not sorted). Can anybody help? Is nlcheck, after all, an appropriate test for checking linearity?
Best,
Barbara
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