check and compare the result in each loop

a=abs(randn(1,100));

for n=1:10

count=0;
for angle=0:360
      count=count+1;

        Xd=(D*cos(angle*pi/180));
        Yd=(D*sin(angle*pi/180));
        d1(n,count)= sqrt((Yd-y(n))^2+(Xd-x(n))^2);%distance between destination and sensor for 0 to 360 degree.
        k(n,count)=((2*pi)/lambda)*(d1(n,count)); %phase lag for each sensor.
        yy(n,count)=(exp(-i*k(n,count))*c(n)*a(n)); %weight multiplication to correct the phase lag.

     end
  end

Y=sum(yy);
YY=abs(Y);

Based on the code above, I'm doing the for loop for (1:10). Now, I need to check result of YY in each loop. I mean I need to check YY result for loop 1, loop 2 and so on. Then, i need to compare the YY result for loop 1 with the YY result for loop 2. how can I do this?

[Jan]

Please use meaningful tags. "matlab code" is not helpful to identify the topic of your question.

Answer 1

[Image Analyst]

What does "compare" mean to you? Do you mean like

difference = YY(n, count) - YY(1, count);

Is that what you mean?

[Kugen Raj]

i want check if the loop 2's YY result is better than loop 1's YY. That is why i'm comparing the YY result in each loop.

[Image Analyst]

You can use Jan's code. You just have to code up what "better" means to you. We have no idea what "better" means.

Answer 2

[Jan]

This sounds like a straight task. Where is the problem?

YYold = inf;  % arbitrary
for angle = 0:360
  YY = rand;  % your formula here
  if angle > 0
    % compare YY with YYold
  end
  YYold = YY;
end