Re: [R] 3 dimensional matrix??

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From: Jonathan Baron (baron@cattell.psych.upenn.edu)
Date: Fri 15 Jun 2001 - 10:40:12 EST 

Message-Id: <200106150040.UAA18737@cattell.psych.upenn.edu>

Q: Perhaps this is obvious...but is there anyway to create a matrix
like object with has more than 2 dimensions. I want to estimate
a bunch of var/cov matrices inside an index loop. It would be
more computationally efficient to do this in C...but R makes many
of the operations inside the loop really easy! Thanks. 

-- 

A: Look at array().  I'm not sure I understand, but you might be
able to use the index for one of the array's dimensions, and the
two other dimensions for each matrix.  Arrays can have more than
3 dimensions.

Jon Baron

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