Feature request: Warning for more $phiXXX and $etaXXX

[billdenney]

I tried to access fit$etaH for a model just now, and I got NULL back. When I tried to access fit$phiRSE I got the helpful warning that I needed to use addCwres() to make it work.

How hard would it be to add that warning to all the related parameters? I'm guessing that it would be all the $phiXXX and $etaXXX calls.

nlmixr2est/R/nmObjGet.R

Line 275 in 4841792

if (any(names(x[[1]]) !="CWRES")) warning("this requires 'CWRES' in fit (use `addCwres()`)", call.=FALSE)

[mattfidler]

phiH is actually in the object. The rest are derived. It is a bit more difficult to add warnings when accessing actual internal objects instrad of methods accessed by $. Still it is possible....