clarification in for loop with intervals

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Turbulence Analysis 2021-1-20

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评论： Turbulence Analysis 2021-1-20

Hi,

I am running the for loop with the intervals as shown below, here at the end of each sequence I need to save the average image for e.g.55 to 65, then that particular matrix needs to be cleared then continue with next seqeunce i.e. 125:1:145 and so on.. Is there a way to do this ???

for kk = [55:1:65 125:1:145 201:1:225]
    % my code
end

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dpb 2021-1-20

What's in the loop?

May not need it; certainly not in that form...

Turbulence Analysis 2021-1-20

for kk = [55:1:65 125:1:145 201:1:225]
   if (kk>=1) && (kk<=9)
        fname_strt = 'B0000' ;
    elseif (kk>=10) && (kk<=99)
        fname_strt='B000';
    elseif (kk>=100) && (kk<=999)
        fname_strt='B00';
    elseif (kk>=1000) && (kk<=9999)
        fname_strt='B0';
    else
         fname_strt='B';
    end
    fname_end = num2str(kk);
    fname = strcat(fname_strt,fname_end,'.vc7');
    II = loadvec(fname);
    x=(II.x);
    y=(II.y);
v = II.vx;
fu2=flipud(v);
t1 = 1;
skT = 1;
skx = 1;
sky = 1;
skT = 1;
lx1 = 1;
lx2 = 89; 
ly1 = 1;
ly2 = 97;
fu2 = medfilt2(fu2,[M M]);
U(:,:,((kk-t1+1)-1)/skT+1) = fu2(lx1:skx:lx2,ly1:sky:ly2);                           
kk
end
X2 = Mean (U);
imagesc (U);
Clear U

In the above, for each loop interval, I have to calculate the average of matrix U and save the resultant image, then matrix U needs to be deleted before moving to the second interval 125:1:145

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Answer 1

per isakson 2021-1-20

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Someting like this

%%
indicies = {[55:1:65], [125:1:145], [201:1:225]};
for jj = 1 : numel( indicies )
    for kk = indicies{jj}
        % my code
    end
    % save average
end