[R] Help with adding 'dates' string as rownames to matrix

[arun]

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.kidney at cameronhume.com>
To: r-help at 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



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