[R] matrices dimensions limitation

[Bruno C.]

Hello,
I have several questions around matrices size limitation:
     can i create a matrix with 700000 rows?
     does it depends on the number of columns?
     if so can Is there a way to ask to R, given the number of columns, the max number of rows I can have?

I need in fact to do regression prediction on a huge matrix (700000x1000)ca. ... 
I will probably have to decompose it on several matrices, and I would do that in an intelligent way so that if my observation matrix size change I do not need to rewrite my code...

Thanx in advance



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