IQ test, why does matlab see different answers?
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I have simple program which I will use later for more difficult, why do i get different answers for FIND and IF ------------------MATLAB code here-------------------------------------------
clear all, clc
b=0;
d=0;
b=[];
A=rand(5,5);
[r,c]=size(A);
inx=find(A>0.5);
disp(['There are ' num2str(length(inx)) ' no numbers more than 4'])
for i=1:r;
for j=i:c;
if A(i,j)>0.5;
d=d+1;
b=[b A(i,j)];
end;
end;
end;
if d>0;
disp(['There are ' num2str(d) ' numbers more than 4'])
else d==0;
disp(['There are no numbers more than 4'])
end;
---------------------End of MATLAB code-----------------------------------
1 commentaire
Oleg Komarov
le 6 Août 2012
You can format your code: http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup
Réponse acceptée
Kye Taylor
le 6 Août 2012
Your inner loop should run from
j = 1:c
not
j = i:c
2 commentaires
Sean de Wolski
le 6 Août 2012
Please accept the answer that helped you resolve this in order to mark the thread closed.
Plus de réponses (1)
Star Strider
le 6 Août 2012
MATLAB doesn't see different answers, your code does. In your ‘for’ loop you're only seeing the upper triangular part of ‘A’. The ‘find’ function sees the entire ‘A’ matrix.
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