Re: [R] TRUE FALSE issue
For huge cases this might be a whiff faster > with(a, Samples[rowSums(a[, -1], na.rm = TRUE) > 0]) [1] S2 S4 Levels: S1 S2 S3 S4 S5 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of bill.venab...@csiro.au Sent: Wednesday, 11 August 2010 12:21 PM To: egg...@gmx.net; r-help@r-project.org Subject: [ExternalEmail] Re: [R] TRUE FALSE issue > with(a, Samples[apply(a[,-1], 1, any)]) [1] S2 S4 Levels: S1 S2 S3 S4 S5 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Alexander Eggel Sent: Wednesday, 11 August 2010 12:05 PM To: r-help@r-project.org Subject: [R] TRUE FALSE issue How can I extract the samples (S1-S5) containing a TRUE value in their row? Solution should apply to a much bigger data frame. > a Samples A B C D . . . 1 S1 FALSE FALSE FALSE FALSE 2 S2 FALSE FALSE NA TRUE 3 S3 FALSE FALSE FALSE FALSE 4 S4 FALSE TRUE FALSE FALSE 5 S5 FALSE FALSE FALSE FALSE . . . Thank you guys, I appreciate your help a lot! [[alternative HTML version deleted]] __ 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. __ 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. __ 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.
Re: [R] TRUE FALSE issue
> with(a, Samples[apply(a[,-1], 1, any)]) [1] S2 S4 Levels: S1 S2 S3 S4 S5 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Alexander Eggel Sent: Wednesday, 11 August 2010 12:05 PM To: r-help@r-project.org Subject: [R] TRUE FALSE issue How can I extract the samples (S1-S5) containing a TRUE value in their row? Solution should apply to a much bigger data frame. > a Samples A B C D . . . 1 S1 FALSE FALSE FALSE FALSE 2 S2 FALSE FALSE NA TRUE 3 S3 FALSE FALSE FALSE FALSE 4 S4 FALSE TRUE FALSE FALSE 5 S5 FALSE FALSE FALSE FALSE . . . Thank you guys, I appreciate your help a lot! [[alternative HTML version deleted]] __ 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. __ 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.
Re: [R] TRUE FALSE issue
On Aug 10, 2010, at 10:16 PM, Erik Iverson wrote: On 08/10/2010 09:04 PM, Alexander Eggel wrote: How can I extract the samples (S1-S5) containing a TRUE value in their row? Solution should apply to a much bigger data frame. a Samples A B C D . . . 1 S1 FALSE FALSE FALSE FALSE 2 S2 FALSE FALSE NA TRUE 3 S3 FALSE FALSE FALSE FALSE 4 S4 FALSE TRUE FALSE FALSE 5 S5 FALSE FALSE FALSE FALSE . Please give us *reproducible* examples as the posting guide requests. See ?rowSums Or ?any ?apply David Winsemius, MD West Hartford, CT __ 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.
Re: [R] TRUE FALSE issue
On 08/10/2010 09:04 PM, Alexander Eggel wrote: How can I extract the samples (S1-S5) containing a TRUE value in their row? Solution should apply to a much bigger data frame. a Samples A B C D . . . 1 S1 FALSE FALSE FALSE FALSE 2 S2 FALSE FALSE NA TRUE 3 S3 FALSE FALSE FALSE FALSE 4 S4 FALSE TRUE FALSE FALSE 5 S5 FALSE FALSE FALSE FALSE . Please give us *reproducible* examples as the posting guide requests. See ?rowSums __ 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.
