[R] Empty Set In a Set

[Jason Q. McClintic]

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Exactly what I needed.

Thanks to everyone who replied.

Sincerely,

Jason Q. McClintic
- --
MIDN 1/C Jason Q McClintic
Battalion Commander
Naval ROTC Battalion
University of Minnesota
UST MB 1945
2115 Summit Avenue
Saint Paul, MN 55105
jqmcclintic at stthomas.edu
mccl0219 at tc.umn.edu
(c) 763-442-3404

"It is insufficient to protect ourselves with laws, we must protect
ourselves with mathematics."--Bruce Schneier

Duncan Murdoch wrote:
| On 29/04/2008 9:39 PM, Jason Q. McClintic wrote:
| Dear List:
|
| I'm looking for a form of the empty set such that if ES is said
| representation,
|
| ~    ES %in% c(1,2,3)
|
| evaluates to TRUE.
|
|> %in% is a vector operator, checking each element of ES and returning a
|> vector result.  It sounds like you want a subset test, i.e. to check
|> that all the results are TRUE,
|
|> all(ES %in% c(1,2,3))
|
|> which returns TRUE when ES is empty.
|
|> Duncan Murdoch
|
| Thank you in advance for your assistance.
|
| Sincerely,
|
| Jason Q. McClintic
|>
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