[R] using a logical vector as a mask?

[Manoj - Hachibushu Capital]

v[is.na(v)]=0

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Rajarshi Guha
Sent: Friday, November 21, 2003 2:38 PM
To: R
Subject: [R] using a logical vector as a mask?

Hi,
  say I have a vector:

v <- c(1,2,3,NA,5,6,NA,7)

And I would like to set the elements that are NA to, say, 0

I can use is.na() to get a logical vector:

ind <- is.na(v)

Is there a way in which I can use this logical vector to set the NA
elements in v to 0?

Thanks,

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Rajarshi Guha <rxg218 at psu.edu> <http://jijo.cjb.net>
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All great ideas are controversial, or have been at one time.

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