[R] Penalized likelihood-ratio chi-squared statistic: L.R. model for Goodness of fit?

2005-08-13 Thread Jan Verbesselt
Dear R list, From the lrm() binary logistic model we derived the G2 value or the likelihood-ratio chi-squared statistic given as L.R. model, in the output of the lrm(). How can this value be penalized for non-linearity (we used splines in the lrm function)? lrm.iRVI - lrm(arson ~

Re: [R] Penalized likelihood-ratio chi-squared statistic: L.R. model for Goodness of fit?

2005-08-13 Thread Frank E Harrell Jr
Jan Verbesselt wrote: Dear R list, From the lrm() binary logistic model we derived the G2 value or the likelihood-ratio chi-squared statistic given as L.R. model, in the output of the lrm(). How can this value be penalized for non-linearity (we used splines in the lrm function)?