i need to jump to the begining of the page or to the first loop in the 'end'

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Kobi 2013-12-16

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https://ww2.mathworks.cn/matlabcentral/answers/109948-i-need-to-jump-to-the-begining-of-the-page-or-to-the-first-loop-in-the-end

评论： Image Analyst 2013-12-17

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hi,

i used the for loop as you can see in the attached image, i need to jump to the begining of the loop

i searched all over the internet but i couldn't find anything

i need index jumping

there is something like that in matlab

and if so, how can i use it?

i tryed using the break command every line before the 'end' it runs perfectly but it's ignoring the change of the index in the for index=1:....

or just to skip the line with the end?....

my cod:

    for z_d=0:dz:z;
    clc
    disp('wait')
    disp(length(z_d)-z_d)
    for ind_r=1:length(x);
    for ind_z=1:length(y);
        for scan_recive

r_row=1:length(s);
      for scan_reciver_col=1:length(s);
      for scan_antena_row=1:length(s_0);
      for scan_antena_col=1:length(s_0);
    R=s_0(scan_antena_row,scan_antena_col)*(z-z_d)/(z-z_0)+s(scan_reciver_row,scan_reciver_col)*(z_d-z_0)/(z-z_0);
    epsilon_new=epsilon_new+A*(exp(-((R-R_t)^2+(z_d-Z_t)^2)/2*a^2))*dz;
    epsilon_print(ind_r,ind_z)=epsilon_new;
        end
        end
        end
        end
        end
    end
    end

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Kobi 2013-12-17

the problem is that this type of matlab calculation after the inner most loop (line 49) reach to the 'end' it begins to loop right back to the begining (line 47) so the resault is that the most inner loop repeats itself a lot of time, causing the script to take something like 5 minuts to run i need to change each variable at a time

Image Analyst 2013-12-17

Well yeah. Because that's what you're telling it to do. If you don't want the inner loop to execute a bunch of times, why is it at the center of a bunch of other for loops???

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