R devel - Nov 2005 - small bug in gl1ce, package lasso2 (PR#8279)

Full_Name: Grant Izmirlian
Version: 2.2.0
OS: SuSe Linux version 9.2
Submission from: (NULL) (156.40.34.177)


The option exists to include all parameters, including the intercept, in the L-1
constraint, by specifying the argument, sweep.out=NULL, explicitly in the
call. However, upon doing this, the function stops with an error report 
"Matrix build from transformed variables has a constant column"

I was able to fix it as follows. In the following line, taken from the same
block of code producing the stop error, modify the existing line from

      X.to.C.stds <- sqrt(apply(X.to.C.w, 2, var))

to 


      X.to.C.stds <- ifelse(con.int, 
                            c(1,sqrt(apply(X.to.C.w[,-is.null(sweep.out)], 2,
var))), 
                                sqrt(apply(X.to.C.w,2,var)))

That should work.