[R] Deleting rows with special character

John Kane jrkrideau at inbox.com
Fri Nov 16 15:34:59 CET 2012


 http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example

John Kane
Kingston ON Canada


> -----Original Message-----
> From: peter.kupfer at me.com
> Sent: Fri, 16 Nov 2012 15:04:31 +0100
> To: r-help at r-project.org
> Subject: [R] Deleting rows with special character
> 
> Dear all,
> maybe a simple problem but I found no solution for my problem.
> I have a matrix Y with 23 000 rows and 220 colums. The entries are "A",
> "B" or "C".
> I want to extract all rows (as a matrix ) of the matrix Y where all
> entries of a row are (for example) "A".
> Is there any solution? I tried the stringr- package but i doesn't work
> out.
> All the best and thanks!
> Peter
> 
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