Odp: fast way to compare two matrices

Hi

x <- matrix(rnorm(1e6), 1000,1000)
y <- matrix(rnorm(1e6), 1000,1000)

identical(x,y)
[1] FALSE

The response is almost instant.

In case you are not satisfied with the unspecific answer be more specific 
with your question.

Regards
Petr

r-help-bounces at r-project.org napsal dne 27.04.2011 13:04:37:

Dear all,
I am trying to speed up some code and I would like to check fast that it 

works

by comparing two different matrices.

What is the fastest way to do that in R?

Best Regards
Alex

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