Add from different array's using for loop

Question

wytze van der Zee 2020-6-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/555838-add-from-different-array-s-using-for-loop

评论： wytze van der Zee 2020-6-27

Hello,

I am sure the questen has been asked before but my search didn't result in a clear answer.

I have 2 array's (A and B). A = 1x120 double and B = 1x90 double

I would like to fill C with the first 40 elements of A, than the first 30 elements of B and so on.

I found out the underneath code works

C = [ A(1:40), B(1:30), A(41:80), B(31:60) etc.

However, the number of times I need to repeat this is variable (in this example A exists of 120 and B of 90, but sometimes A exists of 80 or 160 and B of 60 or 120).

Can anyone help me out with putting this into a for loop so the number of repeating depends on X?

2 个评论
显示无隐藏无

madhan ravi 2020-6-27

What did you try for your homework?

wytze van der Zee 2020-6-27

I tried

var1 = 40

var2 = 30

for x = 1:I

C = [A(((var1*(I-1))+1):var1*I), B(((var2*(I-1))+1):var2*I)]

But this overwrites the previous ones

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

madhan ravi 2020-6-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/555838-add-from-different-array-s-using-for-loop#answer_458032

在 MATLAB Online 中打开

Aix = [0, 40:40:120]; ; %120 is numel(A)
Bix = [0, 30:30:90]; %90 is numel(B)
n = numel(Aix);
c = cell(n-1, 1);
assert(isequal(n, numel(Bix)), 'SizeS DiffeR')
for k = 1:n-1
    c{k} = [A(Aix(k)+1):A(Aix(k+1)), B(Bix(k)+1:Bix(k+1))];
end
Wanted = cat(2, c{:});