## export almost all
exportPattern("^[^\\.]")

## Using "::" in code -> no need here:
## importFrom("methods", existsFunction)
## importFrom("utils", getFromNamespace)

##no longer: importFrom("MASS", psi.bisquare, psi.hampel, psi.huber)

## MASS has many rlm S3 methods; should we use some of them - for rnls() ?!
