Hi,
Try this:
Dates1<-c("2005-04-01 BST","2005-04-04 BST","2005-04-05 BST")
Dates2<-as.Date(gsub("\\s+\\w+$","",Dates1))mat1<-matrix(1:9,nrow=3) library(zoo) z1<-zoo(mat1,Dates2) z1 # #2005-04-01 1 4 7 #2005-04-04 2 5 8 #2005-04-05 3 6 9 #if you use: mat2<-matrix(1:9,nrow=3) row.names(mat2)<- Dates2 mat2 # [,1] [,2] [,3] #12874 1 4 7 #12877 2 5 8 #12878 3 6 9 A.K. ----- Original Message ----- From: kevj1980 <kevin.kid...@cameronhume.com> To: r-help@r-project.org Cc: Sent: Friday, January 25, 2013 5:22 AM Subject: [R] Help with adding 'dates' string as rownames to matrix Hi, I need help with two related issues: 1. I wish to drop repeating text "BST" from the below 'dates' string: [1] "2005-04-01 BST" "2005-04-04 BST" "2005-04-05 BST" "2005-04-06 BST" "2005-04-07 BST" "2005-04-08 BST" "2005-04-11 BST" "2005-04-12 BST" "2005-04-13 BST" "2005-04-14 BST" " 2. I then wish to add this (cleaned-up) 'dates' string as the row names to a matrix (same length as 'dates' string) Any expertise greatly appreciated, kevj -- View this message in context: http://r.789695.n4.nabble.com/Help-with-adding-dates-string-as-rownames-to-matrix-tp4656611.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
