Performance Problem with loop-code

Hello,

is there a possibility to increase the performance of the following MatLab program? It's really slow... 'A' describes a structured array with more than 100 fields. C and D are normal matrices.

Thanks a lot!

Best regard Philipp

T_dummy=12;

for k =1:numel(fields_A) 

B_dummy = NaN(12,size(A.(fields_A{k}),1));

for c=1:size(A.(fields_A{k}),1)

for t=T_dummy-11:T_dummy

B_dummy(t-T_dummy+12,c) = C(t,A.(fields_A{k})(c,1)) + D(t,A.(fields_A{k})(c,2));

B.(['t_' int2str(k)]) = B_dummy;

end 

end

T_dummy=T_dummy+1;

end
clear B_dummy T_Dummy

[per isakson]

Did you try the profiler?