match - returns a vector of the positions of (first) matches - looking for All positions.
Thank you. That's what I was looking for.
I am wondering what does the documentation means by (first) than?
match {base}
match returns a vector of the positions of (first) matches of its
first argument in its second.
On 3 February 2014 15:02, PIKAL Petr <petr.pikal at precheza.cz> wrote:
Hi Posting questions without context may result in answers unrelated to your problem. Anyway it works for me without problem table<-sample(letters[1:5], 20, replace=T) which(table %in% "a") [1] 1 2 19
version
_ platform i386-w64-mingw32 arch i386 os mingw32 system i386, mingw32 status Under development (unstable) major 3 minor 1.0 year 2013 month 12 day 19 svn rev 64488 language R version.string R Under development (unstable) (2013-12-19 r64488) nickname Unsuffered Consequences Regards Petr
-----Original Message----- From: Witold E Wolski [mailto:wewolski at gmail.com] Sent: Monday, February 03, 2014 1:07 PM To: PIKAL Petr Cc: r-help at r-project.org Subject: Re: [R] match - returns a vector of the positions of (first) matches - looking for All positions. Hi Petr, I was actually citing the match (%in%) docu - match returns the positions of (first) matches. I am looking for something returning ALL matches (sure it's easy to write a function which does it ... my intuition however is, that there is already such a function in R - is there something which isn't already implemented in R? Not that I know of. ) regarding : which(table == match) in case table is a vector the output produced is going to be: Warning message: In table == match : longer object length is not a multiple of shorter object length regards On 3 February 2014 11:36, PIKAL Petr <petr.pikal at precheza.cz> wrote:
Hi which(table == match) or which(table %in% match) Petr
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r- project.org] On Behalf Of Witold E Wolski Sent: Monday, February 03, 2014 11:19 AM To: r-help at r-project.org Subject: [R] match - returns a vector of the positions of (first) matches - looking for All positions. Looking for a build in function which returns a vector of the positions of _ALL_ matches. -- Witold Eryk Wolski
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Witold Eryk Wolski