[R] How to catch a R error in R code
hhu at ufl.edu
Wed Oct 10 15:49:54 CEST 2007
I entered a R statement, e.g. 1:20 = x or log("a") on an HTML
form and passed it to a R-CGI script. Obviously, neither of both
is a correct R statement or expression. However, my R-CGI script
could not return and report the error message to the Web site even
though it received the statement. I tried to use some R built-in
functions of try, tryCatch, eval, expression, as.expression,
parse, deparse, etc. None of them worked.
Note: when a statement is correct, i.e. x = 1:20 or log(2), the
same script returned and reported the R output to the Web site.
If any of you has the experience about the matter or topic,
could you please tell me how to catch a R error in this case?
Thank you very much for the help in advance.
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