-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 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. Thank you in advance for your assistance. Sincerely, Jason Q. McClintic - -- Jason Q McClintic UST MB 1945 2115 Summit Avenue St. Paul, MN 55105 jqmcclintic at stthomas.edu mccl0219 at tc.umn.edu "It is insufficient to protect ourselves with laws, we must protect ourselves with mathematics."--Bruce Schneier -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iQEVAwUBSBfN5hMtGNvij6jtAQgx3gf7Bxmht6ODCjsvhuFPkW1QWC1ey/ygVW9m uuwNZVCz2hBNDSV2NktaOHe+hl3sEj4gmxv0Q6onf4Opg59o9OQ1EtaeY13S/ouk EIO2fERY7VQcFbqjr1SnhlXGfyjX5bLk0ipFlqd11R+yXzFxzbafDtfcfKP+sp59 CQ8uZ2wAshPgrN5ZHIrg8RpBEWUnjH19iS4vDr40IrYyVbFLSnT1XM+D3kaMHgtc oEi3wldigmSllX8KGVVp7DeXbEvUdrvsJgF1VLG/R8EFlMMHUVE1OD3d8SJ+y9Wh SuVqWcL+aFXqJvjpQsQaE/2ywk8mis+46EjX1zcYKHPyoIoeqv4OdQ==tBx1 -----END PGP SIGNATURE-----
Is this what you want:> ES <- 1 > ifelse(length(ES %in% c(1,2,3)) == 0, TRUE, ES %in% c(1,2,3))[1] TRUE> ES <- 4 > ifelse(length(ES %in% c(1,2,3)) == 0, TRUE, ES %in% c(1,2,3))[1] FALSE> ES <- NULL > ifelse(length(ES %in% c(1,2,3)) == 0, TRUE, ES %in% c(1,2,3))[1] TRUE>On Tue, Apr 29, 2008 at 9:39 PM, Jason Q. McClintic <jqmcclintic at stthomas.edu> wrote:> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > 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. > > Thank you in advance for your assistance. > > Sincerely, > > Jason Q. McClintic > - -- > Jason Q McClintic > UST MB 1945 > 2115 Summit Avenue > St. Paul, MN 55105 > jqmcclintic at stthomas.edu > mccl0219 at tc.umn.edu > > "It is insufficient to protect ourselves with laws, we must protect > ourselves with mathematics."--Bruce Schneier > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iQEVAwUBSBfN5hMtGNvij6jtAQgx3gf7Bxmht6ODCjsvhuFPkW1QWC1ey/ygVW9m > uuwNZVCz2hBNDSV2NktaOHe+hl3sEj4gmxv0Q6onf4Opg59o9OQ1EtaeY13S/ouk > EIO2fERY7VQcFbqjr1SnhlXGfyjX5bLk0ipFlqd11R+yXzFxzbafDtfcfKP+sp59 > CQ8uZ2wAshPgrN5ZHIrg8RpBEWUnjH19iS4vDr40IrYyVbFLSnT1XM+D3kaMHgtc > oEi3wldigmSllX8KGVVp7DeXbEvUdrvsJgF1VLG/R8EFlMMHUVE1OD3d8SJ+y9Wh > SuVqWcL+aFXqJvjpQsQaE/2ywk8mis+46EjX1zcYKHPyoIoeqv4OdQ=> =tBx1 > -----END PGP SIGNATURE----- > > ______________________________________________ > R-help at 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. >-- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve?
On 29/04/2008 9:39 PM, Jason Q. McClintic wrote:> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > 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 > - -- > Jason Q McClintic > UST MB 1945 > 2115 Summit Avenue > St. Paul, MN 55105 > jqmcclintic at stthomas.edu > mccl0219 at tc.umn.edu > > "It is insufficient to protect ourselves with laws, we must protect > ourselves with mathematics."--Bruce Schneier > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iQEVAwUBSBfN5hMtGNvij6jtAQgx3gf7Bxmht6ODCjsvhuFPkW1QWC1ey/ygVW9m > uuwNZVCz2hBNDSV2NktaOHe+hl3sEj4gmxv0Q6onf4Opg59o9OQ1EtaeY13S/ouk > EIO2fERY7VQcFbqjr1SnhlXGfyjX5bLk0ipFlqd11R+yXzFxzbafDtfcfKP+sp59 > CQ8uZ2wAshPgrN5ZHIrg8RpBEWUnjH19iS4vDr40IrYyVbFLSnT1XM+D3kaMHgtc > oEi3wldigmSllX8KGVVp7DeXbEvUdrvsJgF1VLG/R8EFlMMHUVE1OD3d8SJ+y9Wh > SuVqWcL+aFXqJvjpQsQaE/2ywk8mis+46EjX1zcYKHPyoIoeqv4OdQ=> =tBx1 > -----END PGP SIGNATURE----- > > ______________________________________________ > R-help at 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.