On 8/30/06, Mark Lyman <[EMAIL PROTECTED]> wrote: > > I have a problem with apply function. I have to two matrices of dimension of > > one column but n rows. I have to check whether one matrix is greater than > > other by going thru each row (ie) using if condition to check one matrix > > with another matrix. > > > > I like to use apply() function to this approach. That is apply function > > between two matrices. I searched for examples online but I couldn't find > > any. > > > > I don't know how to loop thru the matrices. > > You can use the functions all.equal with the function isTRUE (see ?all.equal) > to > check if two objects are nearly equal (within a certain tolerance). Or you can > use identical (see ?identical) to check if they are exactly the same. See the > examples in the help for identical.
A possible solution could be: > x <- 1:5 > x [1] 1 2 3 4 5 > y <- 2:6 > y [1] 2 3 4 5 6 > all((y-x)>0) [1] TRUE The result TRUE means that each element of y is greater than the homologous element in x. Paul ______________________________________________ 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 and provide commented, minimal, self-contained, reproducible code.
