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rotationmatrix
2010 Dec 27
1
R-code to generate random rotation matrix for rotation testing
Dear list,
I am looking for an implementation of random rotation matrix generation in R to do a rotation test: I want to use the matrices to create random multivariate normal matrices with common covariance structure and mean based on an observed data matrix.
The rRotationMatrix-function in the mixAK-package is an option, but as far as I can tell I need to draw rotation matrices with determinant -1 as well. Roast and Romer in the limma-bioconductor package appear to have implemented something similar, which seems not to be general enough for my purposes, however. Inspired...