Hi,
I am not sure I understand your question.
Are you asking how to find the rows that satisfies the condition of the
second row?
Something like:
(let's say the data.frame is called X)
X[,1] == "A" & X[,2] == 2 & X[,3] == "peach"
?
----------------Contact
Details:-------------------------------------------------------
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
----------------------------------------------------------------------------------------------
On Wed, Oct 5, 2011 at 10:42 AM, lunarossa <gloriaal...@yahoo.it> wrote:
> I have this kind of matrix, with thousands of cases.
>
> A 2 apple
> A 2 peach
> A 3 peach
> B 1 pear
> B 4 peach
> B 4 beef
> B 7 beef
> C 1 peach
> D 2 apple
> D 5 peach
>
> I have to distinguish, from the other rows, the rows with "peach" and this
> is not a problem.
>
> I also have to discriminate the rows with peach like the second one
> (associated with the same two cells "A" and "2" to "apple", see first row)
> from the row like the 3rd or the 8th ones, when the first two cells are
> "unique" ("A" and "3" or "C" and "1").
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Does-it-exist-a-function-for-this-tp3873827p3873827.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
