tryCatch both warnings (with value) and errors

Source: R/Utility_functions.R

Catch and save both errors and warnings, and in the case of a warning, also keep the computed result.

tryCatch.W.E(expr)

Arguments

expr

an R expression to evaluate

Value

a list with 'value' and 'warning', where 'value' may be an error caught.

Author

Martin Maechler; Copyright (C) 2010-2012 The R Core Team