On 15/05/2009, at 11:19 AM, myshare wrote:
hi guys,
How do you check if variable is initialized/created, tried :
is.nan(xxx)
is.null(xxx)
is.na(xxx)
exists(xxx)
all of them return :
Error: object "xxx" not found
I need true/false result ?
exists("xxx") # Note the quote marks; requires the variable name as a
string.
cheers,
Rolf Turner
######################################################################
Attention:\ This e-mail message is privileged and confid...{{dropped:9}}
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
