If '!' is the first character in an S-PLUS command
(but not R), then the rest of the command is sent
to the operating system.
Patrick Burns
patrick@burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide for the Unwilling S User")
Dennis Fisher wrote:
Colleagues:
In S-Plus 8.0.4 (Linux), the command:
!is.R()
yields the following response:
Badly placed ()'s.
If I enter:
{ !is.R() }
I get the desired response:
[1] T
If I enter:
is.R()
I also get the desired response:
[1] F
Can anyone explain why I need {} ?
Dennis
Dennis Fisher MD
P < (The "P Less Than" Company)
Phone: 1-866-PLessThan (1-866-753-7784)
Fax: 1-415-564-2220
www.PLessThan.com <http://www.PLessThan.com>
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