Vectorization of for/loop

I have the following code:

 for ii = 1: length(angles)
    laminate.ply(ii).angle = angles(ii)/180*pi;
    laminate.ply(ii).t = thickness(ii);
    laminate.ply(ii).material = mat_ex3_ge();
 end

How to impliment it without for/loop?

Answer 1

[Andrei Bobrov]

laminate.ply = struct('angles',num2cell(angles(:)/180*pi),...
                      't',num2cell(thickness(:)),...
                      'material',repmat({mat_ex3_ge()},numel(angles),1));

[Dimitrios]

thanks :) Just to mention a small typing error in last line : the numel function.

[Andrei Bobrov]

Thank you, corrected.

[Matt J]

Note, however, that this is not truly vectorized. The num2cell function uses for-loops,

>>type num2cell

Answer 2

[Matt J]

There's no way without a for-loop or equivalent.

But regardless, it's a bad way to organize your data. It splits the angles(ii), thickness(ii), etc... data in an inefficient way. Store all data in one field instead,

 laminate.ply.angles=angles*180/pi;
 laminate.ply.t=thickness;
 laminate.ply.material(1:length(angles))=mat_ex3_ge();