Cycle of operations on vector sections

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Lev Mihailov 2022-4-4

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1687944-cycle-of-operations-on-vector-sections

评论： Lev Mihailov 2022-4-4

采纳的回答： Davide Masiello

在 MATLAB Online 中打开

I'm trying to make a cycle that would process a section of the vector and return this section to me changed

x=rand(1,2302)
y=rand(1,2302)
step=100;
for i=1:size(x,2)
    i1=y(i:i+step);
    i2=x(i:i+step);
    a(i)=myfun(i1,i2);
end
%% for example my function
function [m,s] = myfun(x,y)
    n = length(x);
    m = x-0.26;
    s= y-0.77
end

thank you in advance

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Davide Masiello 2022-4-4

Please share the code for myfun.

Lev Mihailov 2022-4-4

@Davide Masiello I added an example function

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采纳的回答

Davide Masiello 2022-4-4

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1687944-cycle-of-operations-on-vector-sections#answer_934109

在 MATLAB Online 中打开

The problem is myfun spits out two vectors of size 1 x step+1.

You could assign this vectors to the rows of a new matrix (see a and b in the example below) .

x = rand(1,2302);
y = rand(1,2302);
step = 100;
for i = 1:size(x,2)-step
    i1 = y(i:i+step);
    i2 = x(i:i+step);
    [a(i,:),b(i,:)] = myfun(i1,i2);
end
function [m,s] = myfun(x,y)
n = length(x); % <--- not needed
m = x-0.26;
s= y-0.77;
end