Re: [R] Calculate external validation

2013-12-04 Thread David Winsemius
On Dec 3, 2013, at 12:45 PM, Juan Manuel Reyes S wrote: > Dear R-project > > I could not validate one logistic model because when I used the function > lrm.fit of the package rms the program showed a error message. It said that > the variable Clam and offset must have same length. Giving argume

[R] Calculate external validation

2013-12-03 Thread Juan Manuel Reyes S
Dear R-project I could not validate one logistic model because when I used the function lrm.fit of the package rms the program showed a error message. It said that the variable Clam and offset must have same length. ext <- lrm.fit( ,Clam, offset="X") In this case, Clam is variable depend or vari