Felipe,

Complementando:

vals <- list(10, 'ONZE', 12)

tryCatch(log(vals), error = function(...) NA)

sapply(vals, function(x) tryCatch(log(x), error = function(...) NA))

Éder Comunello <c omunello.eder@gmail.com>
Dourados, MS - [22 16.5'S, 54 49'W]