function r_mat = rnorm(mat,normdim)
% Range (0-1) normalization along the first dimension of the matrix
if ~exist('normdim','var'),normdim = 'all';end
max_mat = nanmax(mat,[],normdim);
min_mat = nanmin(mat,[],normdim);
% for i = 1:ndims(mat)
%     max_mat = max(max_mat);
%     min_mat = min(min_mat);   
% end
r_mat = (mat - min_mat)./(max_mat - min_mat);
end