Divide an array in n different arrays

Question

luca 2019-9-17

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/480755-divide-an-array-in-n-different-arrays

编辑： Bruno Luong 2019-9-17

Hi, given the array

V = [1 1 1 1 1 1 6 6 6 6 6 6 6 6 6 3 3 3 3 3 3 3 5 5 5 5 5 5 5 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 4 4 4 4 4 4 4 4 4 4 2 2 2 2 2 1 1 1 1 1 6 6 6 6 6 6 6] 

and the matrix

I want to obtain 5 different arrays

a = [1 1 1 1 1 1 6 6 6 6 6 6 6 6 6];

b = [ 3 3 3 3 3 3 3 5 5 5 5 5 5 5 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9];

c = [4 4 4 4 4 4 4 4 4 4 2 2 2 2 2 ];

d = [1 1 1 1 1 6 6 6 6 6 6 6];

so every time I meet the elements of one of the columns: 1-6 , 3-5-8-9 or 4-2 , I have to collect them and reported in a new array.

N.B zeros are never present in V, but are just inserted in A to create a square matrix

May someone help me with this task?

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Answer 1

Bruno Luong 2019-9-17

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/480755-divide-an-array-in-n-different-arrays#answer_392246

编辑：Bruno Luong 2019-9-17

在 MATLAB Online 中打开

V = [1 1 1 1 1 1 6 6 6 6 6 6 6 6 6 3 3 3 3 3 3 3 5 5 5 5 5 5 5 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 4 4 4 4 4 4 4 4 4 4 2 2 2 2 2 1 1 1 1 1 6 6 6 6 6 6 6]
A = [1 3 4
6 5 2
0 8 0
0 9 0]
[~,c,a] = find(A);
[~,i] = ismember(V,a);
g = c(i);
d = find([true; diff(g); true]);
c = mat2cell(V,1,diff(d));
c{:}