Read Shrinkage data reported by Nonmem
NMreadShk(file, auto.ext, as.fun)
A model file. Extension will be replaced by ".shk".
If `TRUE` (default) the extension will automatically be modified using `NMdataConf()$file.shk`. This means `file` can be the path to an input or output control stream, and `NMreadShk` will still read the `.shk` file.
See ?NMdataConf
A `data.frame` with shrinkage values, indexes, and name of related parameter, like `OMEGA(1,1)`.
Type 1=etabar Type 2=Etabar SE Type 3=P val Type 4= Type 5= Type 6= Type 7=number of subjects used. Type 8= Type 9= Type 10= Type 11=