[R] Matrix Mulitplication: A*B*C*D...?

[Uwe Ligges]

On 16.06.2013 04:35, G Vishwanath wrote:
> Is there a R package or function that will multiple an arbitrary number of matrices supplied to it, preferably optimizing the sequence
>
> R_function(matA, matB, matC,  matD,....)
>     return matA %*%  matB %*%  matC %matD %....
>
> and optimizing wether it is better to do A(BC) or (AB)C ?


For part 1) or your question:

Reduce("%*%", list(matA, matB, matC, matD, ...)

for part 2): No idea.

Best,
Uwe Ligges



>
> Thanks,
> Shiv
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