https://github.com/jdiedrichsen/pcm_toolbox
Tip revision: 4e290a8b2c0d0820f868b7bcb60a3da7bb30e6ee authored by Jörn Diedrichsen on 26 April 2023, 01:59:24 UTC
Update pcm_estimateRegression.m
Update pcm_estimateRegression.m
Tip revision: 4e290a8
traceAB.m
%trace of A times B
% Mex version to compute the trace of the multiplication of A and B
%
% The function uses the trace trick to speed up estimation times:
% trace(A*B)=sum(sum(A.*B'))
%
% INPUT:
% A: NxK matrix of doubles
% B: KxN matrix of doubles
%
% OUTPUT:
% tr : the trace of A times B
%
% WARING: for speed reasons the mex version of this function skips all
% checks involving the size of the matrices, these checks should be
% implemented in the calling function
% (c) Naveed Ejaz 2013 n.ejaz@ucl.ac.uk
%
% See also traceABtrans