How to store index values in the form of arrays using for loop?

Question

SAURAV SANKHE 2020-6-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/539463-how-to-store-index-values-in-the-form-of-arrays-using-for-loop

编辑： KALYAN ACHARJYA 2020-6-1

采纳的回答： Sugar Daddy

在 MATLAB Online 中打开

Hello Everyone

Can you please tell me how to save indes values of the following code from the for loop?

rng default
M = zeros(randi([3 6]),randi([3 6]))
[u,v] = size(M)
for i = 1:u
    for j = 1:v
       ind1(i) = i;
       ind2(j) = j;
       indices = [ind1(i),ind2(j)]
    end
end

I want to store the values in the form of two colums and m*n rows.

Thank you

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Sugar Daddy 2020-6-1

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/539463-how-to-store-index-values-in-the-form-of-arrays-using-for-loop#answer_443999

在 MATLAB Online 中打开

rng default
M = zeros(randi([3 6]),randi([3 6]))
[u,v] = size(M)
inc  =1;
for i = 1:u
    for j = 1:v
       indices(inc,:) = [i ,j];
       inc = inc+1;
    end
end

or you can use to ind2sub instead of for loop

[x,y]=ind2sub(size(M),1:numel(M));
indices = [y' x'];

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

KALYAN ACHARJYA 2020-6-1

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/539463-how-to-store-index-values-in-the-form-of-arrays-using-for-loop#answer_443995

编辑：KALYAN ACHARJYA 2020-6-1

在 MATLAB Online 中打开

Cell array

rng default
M = zeros(randi([3 6]),randi([3 6]))
[u,v] = size(M)
indices=cell(u,v);
for i = 1:u
    for j = 1:v
       ind1(i) = i;
       ind2(j) = j;
       indices{i,j}=[ind1(i),ind2(j)];
    end
end