look at ?col and ?row. One way to use them is: col(A)[A==11] row(A)[A==14]
hope this helps, Greg Snow, Ph.D. Statistical Data Center, LDS Hospital Intermountain Health Care [EMAIL PROTECTED] (801) 408-8111 >>> shanmuha boopathy <[EMAIL PROTECTED]> 09/19/05 01:30PM >>> Dear sir, i have a matrix like x<-c(1:20) A<-matrix(x,4,5) > A [,1] [,2] [,3] [,4] [,5] [1,] 1 5 9 13 17 [2,] 2 6 10 14 18 [3,] 3 7 11 15 19 [4,] 4 8 12 16 20 I want to extract the column value for the matrix value 11... or the row value for 14.. how it is possible? thanks for your help.... with regards, boopathy. Thirumalai Shanmuha Boopathy, Zimmer no : 07-15, Rütscher strasse 165, 52072 Aachen . Germany. Home zone : 0049 - 241 - 9813409 Mobile zone : 0049 - 176 - 23567867 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel