Hello, I am struggling with detecting successive digits in a numerical series vector. Here is an example: vec <- c(1, 15, 26, 29, 30, 31, 37, 40, 41) I want to be able to detect 29, 30, 31 and 40, 41. Then, I would like to delete the successive digits from the vector. 1, 15, 26, 29, 37, 40 Cheers -- View this message in context: http://r.789695.n4.nabble.com/Detect-numerical-series-tp4379088p4379088.html Sent from the R help mailing list archive at Nabble.com.
Detect numerical series
3 messages · syrvn, David Winsemius
On Feb 11, 2012, at 10:01 AM, syrvn wrote:
Hello, I am struggling with detecting successive digits in a numerical series vector. Here is an example: vec <- c(1, 15, 26, 29, 30, 31, 37, 40, 41) I want to be able to detect 29, 30, 31 and 40, 41. Then, I would like to delete the successive digits from the vector. 1, 15, 26, 29, 37, 40
vec[ c(TRUE, !diff(vec) == 1) ] #[1] 1 15 26 29 37 40
Cheers -- View this message in context: http://r.789695.n4.nabble.com/Detect-numerical-series-tp4379088p4379088.html Sent from the R help mailing list archive at Nabble.com.
______________________________________________ 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.
David Winsemius, MD West Hartford, CT
That's great code. Thanks a lot! -- View this message in context: http://r.789695.n4.nabble.com/Detect-numerical-series-tp4379088p4379133.html Sent from the R help mailing list archive at Nabble.com.