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

[PIKAL Petr]

Hi


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of kevj1980
> Sent: Friday, January 25, 2013 11:22 AM
> To: r-help at r-project.org
> 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" "

You can use regular expressions but if your string is like you showed us, 

dates1 <-substr(dates, 1, 10)


> 
> 2. I then wish to add this (cleaned-up) 'dates' string as the row names
> to a matrix (same length as 'dates' string)

rownames(mat) <- dates1

Regards
Petr

> 
> Any expertise greatly appreciated,
> kevj
> 
> 
> 
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