[R] Matrix inverse

Thomas Lumley thomas at biostat.washington.edu
Fri Apr 28 19:09:12 CEST 2000


On Fri, 28 Apr 2000, Patrik Waldmann wrote:

> I haven't found a function that directly calculates the matrix inverse, does it exist? Otherwise what would be the fastest way to do it?
> 

Ainv<-solve(A)

Note that if you want to solve Ax=b you can do solve(A,b), which should be
quicker than solve(A)%*%b

	-thomas


Thomas Lumley
Assistant Professor, Biostatistics
University of Washington, Seattle

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