[R] stepAIC error

labbig lkaimaka at windowslive.com
Tue Feb 21 17:13:42 CET 2012

i am trying to run stepwise regression for two models(lower,upper),
and i get the same error despite the models i use.

Error in UseMethod("extractAIC") : 
  no applicable method for 'extractAIC' applied to an object of class
In addition: Warning message:
In nobs.default(object, use.fallback = TRUE) :
  no 'nobs' method is available

Any help?

View this message in context: http://r.789695.n4.nabble.com/stepAIC-error-tp4407460p4407460.html
Sent from the R help mailing list archive at Nabble.com.

More information about the R-help mailing list