MATLAB: Perform matrix operation without for loop

Question

I have a matrix (exp_data) of size 25000*45000. I need to perform the following operations as in the code, however with the for loop it takes ~4 hours to operate,

beta is a set of 3 values, for which I need to perform the operations. beta=[0.1, 0.04, 0.6]

any help is much appreciated

for m=1:3
for i=1:25000
  for j=1:45000
if exp_data(i,j)>1.5;
xes(i,j)=exp(beta(m).*(exp_data(i,j)));
else xes(i,j)=1;
end;
  end
end;
xe(:,:,m)=xes;
end;

Answer 1

xe = exp(reshape(beta, 1, 1, []) .* exp_data) .* (exp_data > 1.5) + 1 * (exp_data <= 1.5);
% use bsxfun() for implicit expansion in older versions
xe = exp(bsxfun(@times, reshape(beta, 1, 1, []), exp_data)) .* (exp_data > 1.5) + 1 * (exp_data <= 1.5);