A proposed function for the Brain Connectivity Toolbox to remove self-loops from an input matrix

remove_self_loops.m

function W_ = remove_self_loops(W)
% REMOVE_SELF_LOOPS    Removal of self-self connections from an input
% matrix
%
%   W_ = remove_self_loops(W);
% 
%   Return a copy of the input matrix with all self-self connections 
%      removed (i.e. the primary diagonal set to all 0s).
% 
%   Inputs: W           binary or weighted connectivity matrix
%
%   Output: W_          output connectivity matrix
%
%
%   Chris Barnes, HHMI Janelia Research Campus, 2015

%   Modification History:
%   Nov 2015: Original

W_ = W.*(1-eye(length(W)));

end