[R] number of an element in a matrix
Petr PIKAL
petr.pikal at precheza.cz
Tue Aug 12 14:09:17 CEST 2008
Hi
r-help-bounces at r-project.org napsal dne 11.08.2008 22:50:08:
> You can use the length() and which() functions for that:
>
> > length(which(m == 2))
Or simply
sum(m == 2)
Regards
Petr
>
> cheers,
> brandon
>
>
> rostam shahname wrote:
> > Hi, I wonder if there is any function which gives the number of times
which
> > an element is repeated in the matrix. Let say there is a matrix, I
would
> > like to find out how many times number 2 has been repeated in the
matrix, or
> > in other words, how many elements of the matrix are equal 2.
> > Thanks for your help,
> > Rostam
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help at 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.
> >
>
> ______________________________________________
> R-help at 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.
More information about the R-help
mailing list