[R] Replacing all NA values in a matrix

[Whit Armstrong]

x <- matrix(rnorm(100),ncol=10)
x[x>0] <- NA
x[is.na(x)] <- 1000

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of 
> michael watson (IAH-C)
> Sent: Wednesday, January 05, 2005 9:26 AM
> To: R-help at stat.math.ethz.ch
> Subject: [R] Replacing all NA values in a matrix
> 
> 
> OK, dumb question, and it is probably in the docs somewhere, 
> but after 12 months working with R and quite a while looking 
> at the docs, I still don't know (or have forgotten) how to 
> replace all NA values in a matrix at once with some other 
> value.  I can do it column by column using is.na(), but I 
> can't figure out how to do it for the whole matrix.  My 
> apologies, I am ashamed ;-)
> 
> Michael Watson
> Head of Informatics
> Institute for Animal Health,
> Compton Laboratory,
> Compton,
> Newbury,
> Berkshire RG20 7NN
> UK
> 
> Phone : +44 (0)1635 578411 ext. 2535
> Mobile: +44 (0)7990 827831
> E-mail: michael.watson at bbsrc.ac.uk
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list 
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
>