>>>>> "CAPE" == Charles Annis, P E <charles.an...@statisticalengineering.com>
>>>>> on Thu, 19 Mar 2009 22:46:10 -0400 writes:
>> ?is.na
>> x <- c(NA, 3, 4, 5, NA)
>> which(is.na(x))
CAPE> [1] 1 5
well, yes, of course,
but that's not as efficient for large x with only few NAs.
But this now has *REALLY* changed into a topic belonging to
R-devel, not R-help
~~~~~~~ --> hence I've diverted the thread to there.
Martin Maechler, ETH Zurich
CAPE> Charles Annis, P.E.
CAPE> charles.an...@statisticalengineering.com
CAPE> http://www.StatisticalEngineering.com
CAPE> -----Original Message-----
CAPE> From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On
CAPE> Behalf Of Santosh
CAPE> Sent: Thursday, March 19, 2009 9:37 PM
CAPE> To: r-help@r-project.org
CAPE> Subject: [R] which.na
CAPE> Hi R- users
CAPE> I was wondering if there is any function equivalent to which.na used
in S+?
CAPE> Thanks much in advance!
CAPE> Regards,
CAPE> Santosh
CAPE> [[alternative HTML version deleted]]
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CAPE> and provide commented, minimal, self-contained, reproducible code.
CAPE> ______________________________________________
CAPE> R-help@r-project.org mailing list
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CAPE> PLEASE do read the posting guide
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CAPE> and provide commented, minimal, self-contained, reproducible code.
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