Is it possible to make a loop to run another loop?

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Lev Mihailov
Lev Mihailov 2020-7-21
评论： Lev Mihailov 2020-7-21
Hello! I have a large matrix that I need to work with. Now I select a separate vector and work with it in a loop
Xvector=Xmatrix(:,1);
for j=1:100 % 100 - 100 is the length of the column
x=mean(mean(Xvector(a(j):a(j+1)));) % a - the values ​​I'm working with
end
now i want to do so
for i=1:1000 % 1000 is the length of the lines
Xvector(:,i)=Xmatrix(:,i);
for j=1:100 % 100 - 100 is the length of the column
x=mean(mean(Xvector(a(j):a(j+1)));) % a - the values ​​I'm working with
end
end
only the last value (last column) counts to me.
how can I fix this? ps I understand the cycle will be long, but manually entering everything will take a very long time
  2 个评论
Walter Roberson
Walter Roberson 2020-7-21
for i=1:1000 % 1000 is the length of the lines
Xvector(:,i)=Xmatrix(:,i);
j = 100 % 100 - 100 is the length of the column
x(i) = mean(mean(Xvector(a(j):a(j+1)));) % a - the values I'm working with
end
Lev Mihailov
Lev Mihailov 2020-7-21
a=[1:4:100];
Index exceeds the number of array elements (25).
Error in p (line 47)
x(i) = mean(mean(Xvector(a(j):a(j+1)))) % a - the values I'm working with

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