[R] Help with function jtest - inputs other than from lm

Reiko heiko-sorg at gmx.de
Sun May 3 18:22:36 CEST 2015

Hi all,

the function jtest allows to compare two non-nested models. The comparison
is made such that the fitted values of one model are included in the
regressor matrix of the other model. It then looks whether there is any
predictive power of these fitted values.

Unfortunately, the input has to come from a linear regression of class lm. I
think that in the function jtest, both the regressor matrix of model 1 and
the fitted values of model 2 will be estimated. Afterwards, it will perform
the J test. 

However, I don't use lm and wanted therefore to ask if you know whether
there is a way to manually define a regressor matrix (e.g. a matrix) and the
fitted values (vector) as inputs? 


View this message in context: http://r.789695.n4.nabble.com/Help-with-function-jtest-inputs-other-than-from-lm-tp4706738.html
Sent from the R help mailing list archive at Nabble.com.

More information about the R-help mailing list