HOW TO GET TOTAL DATA FROM FOR LOOP?

Question

MOHD 2012-9-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/48328-how-to-get-total-data-from-for-loop

Hi,

I have problem in following code, I am saving for loop data using the following method(matrix method) but it is lengthy, but I require easy method to save for loop data, can anyone help me in this regard

clearall;

clc;

dim=32;

[kx,ky]=meshgrid(-1:2/(dim-1):1,-1:2/(dim-1):1);

circ=sqrt(kx.^2+ky.^2)<1;

kx=kx/2;

ky=ky/2;

alp=asin(1);

k0=1/sin(alp);

k=256;

kz=sqrt(k0^2-(kx.^2+ky.^2));

Gx=sqrt(k0./kz).*((k0*ky.^2+kz.*kx.^2)./(k0*(kx.^2+ky.^2)));

Gy=sqrt(k0./kz).*((kz-k0).*kx.*ky)./(k0*(kx.^2+ky.^2));

Gz=sqrt(k0./kz).*(kx./k0);

z=-32:1:32;

[r,c]=size(z);

mz=0.5;

for j=1:c

Ex(:,:,j)=fftshift(fft2(exp(i*kz*z(j)*mz).*(Gx).*circ,k,k));

Ix(:,:,j)=Ex(:,:,j).*conj(Ex(:,:,j));

Ey(:,:,j)=fftshift(fft2((exp(i*kz*z(j)*mz).*Gy).*circ,k,k));

Iy(:,:,j)=Ey(:,:,j).*conj(Ey(:,:,j));

Ez(:,:,j)=fftshift(fft2((exp(i*kz*z(j)*mz).*Gz).*circ,k,k));

Iz(:,:,j)=Ez(:,:,j).*conj(Ez(:,:,j));

I=Ix+Iy+Iz;

M=I(k/2,:,:);

end

M1=[M(:,:,1);M(:,:,2);M(:,:,3);M(:,:,4);M(:,:,5);M(:,:,6);M(:,:,7);M(:,:,8);M

(:,:,9);M(:,:,10);M(:,:,11);M(:,:,12);M(:,:,13); M(:,:,14);M(:,:,15);

M(:,:,16);M(:,:,17); M(:,:,18);M(:,:,19);M(:,:,20);M

(:,:,21);M(:,:,22);M(:,:,23);M(:,:,24);M(:,:,25);

M(:,:,26);M(:,:,27);M(:,:,28);M(:,:,29);M(:,:,30);M(:,:,31);M(:,:,32);

M(:,:,33);M(:,:,34);M(:,:,35);M(:,:,36);M(:,:,37);

M(:,:,38);M(:,:,39);M(:,:,40);M(:,:,41);M(:,:,42);M(:,:,43);M(:,:,44);

M(:,:,45);M(:,:,46);M(:,:,47); M(:,:,48);M(:,:,49);

M(:,:,50);M(:,:,51);M(:,:,52);M(:,:,53);M(:,:,54);M(:,:,55);M(:,:,56);

M(:,:,57); M(:,:,58);M(:,:,59);M(:,:,60);M(:,:,61);

M(:,:,62);M(:,:,63);M(:,:,64);M(:,:,65)];

thanks in advance;

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Answer 1

Andrei Bobrov 2012-9-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/48328-how-to-get-total-data-from-for-loop#answer_59019

编辑：Andrei Bobrov 2012-9-17

在 MATLAB Online 中打开

try this ( EDIT )

dim=32;
[kx,ky]=meshgrid(-1:2/(dim-1):1);
circ=sqrt(kx.^2+ky.^2)<1;
kx=kx/2;
ky=ky/2;
alp=asin(1);
k0=1/sin(alp);
k=256;
kz=sqrt(k0^2-(kx.^2+ky.^2));
Gx=sqrt(k0./kz).*((k0*ky.^2+kz.*kx.^2)./(k0*(kx.^2+ky.^2)));
Gy=sqrt(k0./kz).*((kz-k0).*kx.*ky)./(k0*(kx.^2+ky.^2));
Gz=sqrt(k0./kz).*(kx./k0);
z=-32:1:32;
c = numel(z); %[r,c]=size(z);
mz=0.5;
n = size(kx);
Ex = zeros([k k c]);
Ey = zeros([k k c]);
Ez = zeros([k k c]);
q1 = exp(1i*kz*mz);
for jj=1:c
    q2 = q1.^z(jj).*circ;
    Ex(:,:,jj)=fftshift(fft2(q2.*Gx,k,k));
    Ey(:,:,jj)=fftshift(fft2(q2.*Gy,k,k));
    Ez(:,:,jj)=fftshift(fft2(q2.*Gz,k,k));
end
I = Ex.*conj(Ex) +  Ey.*conj(Ey) +  Ez.*conj(Ez);
M=I(k/2,:,:);
Mout = squeeze(M).';