[R] Extract from matrix

_Fede_ r_stat_solutions at hotmail.es
Fri Feb 15 17:10:08 CET 2008


Hi all.

I have certain problem with the extraction of data from matrices. I know how
extract elements from a matrix, but what I would like to do is to extract a
concrete number, not an element. For example if I have this matrix X:

     [,1] [,2] [,3] [,4]
[1,]    3   13   23   33
[2,]    9   19   29   39
[3,]   10   20   30   40

I can do X[-2] or X[2] in order to eliminate the element of the matrix or to
extract it, respectively.

But, what I need is to extract or to eliminate a value of the matrix. For
example the 29.

Can I do this? How?

Thanks for the help.
-- 
View this message in context: http://www.nabble.com/Extract-from-matrix-tp15502655p15502655.html
Sent from the R help mailing list archive at Nabble.com.



More information about the R-help mailing list