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POHow to improve execution time of the following Matlab code
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  1. POHow to improve execution time of the following Matlab code
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    copied!<p>Please help me to improve the following Matlab code to improve execution time. </p> <p>Actually I want to make a random matrix (size <code>[8,12,10]</code>), and on every row, only have integer values between <code>1</code> and <code>12</code>. I want the random matrix to have the sum of elements which has value (1,2,3,4) per column to equal <code>2</code>.</p> <p>The following code will make things more clear, but it is very slow. Can anyone give me a suggestion??</p> <pre><code>clc clear all jum_kel=8 jum_bag=12 uk_pop=10 for ii=1:uk_pop; for a=1:jum_kel krom(a,:,ii)=randperm(jum_bag); %batasan tidak boleh satu kelompok melakukan lebih dari satu aktivitas dalam satu waktu end end for ii=1:uk_pop; gab1(:,:,ii) = sum(krom(:,:,ii)==1) gab2(:,:,ii) = sum(krom(:,:,ii)==2) gab3(:,:,ii) = sum(krom(:,:,ii)==3) gab4(:,:,ii) = sum(krom(:,:,ii)==4) end for jj=1:uk_pop; gabh1(:,:,jj)=numel(find(gab1(:,:,jj)~=2&amp; gab1(:,:,jj)~=0)) gabh2(:,:,jj)=numel(find(gab2(:,:,jj)~=2&amp; gab2(:,:,jj)~=0)) gabh3(:,:,jj)=numel(find(gab3(:,:,jj)~=2&amp; gab3(:,:,jj)~=0)) gabh4(:,:,jj)=numel(find(gab4(:,:,jj)~=2&amp; gab4(:,:,jj)~=0)) end for ii=1:uk_pop; tot(:,:,ii)=gabh1(:,:,ii)+gabh2(:,:,ii)+gabh3(:,:,ii)+gabh4(:,:,ii) end for ii=1:uk_pop; while tot(:,:,ii)~=0; for a=1:jum_kel krom(a,:,ii)=randperm(jum_bag); %batasan tidak boleh satu kelompok melakukan lebih dari satu aktivitas dalam satu waktu end gabb1 = sum(krom(:,:,ii)==1) gabb2 = sum(krom(:,:,ii)==2) gabb3 = sum(krom(:,:,ii)==3) gabb4 = sum(krom(:,:,ii)==4) gabbh1=numel(find(gabb1~=2&amp; gabb1~=0)); gabbh2=numel(find(gabb2~=2&amp; gabb2~=0)); gabbh3=numel(find(gabb3~=2&amp; gabb3~=0)); gabbh4=numel(find(gabb4~=2&amp; gabb4~=0)); tot(:,:,ii)=gabbh1+gabbh2+gabbh3+gabbh4; end end </code></pre>
 

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