Is capturing error/warning messages generated by R supported ?

[vijayender]

I get the error/warning messages only on the inferior-lisp buffer when in emacs. That might be due to R running on a different thread other than that of swank.

Is there a function in the package that would let me capture those warning messages.

Ex:
(rclg:r plot)

I would like to capture the following error string
Error in is.function(x) : 'x' is missing

Thanks