Divide array into 3 parts

Question

Ahmed Abdulla 2022-1-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1629495-divide-array-into-3-parts

回答： Image Analyst 2022-1-15

I have a matrix of size (N,3), where I want to divide this matrix into 3 matrices where matrix 1 is 70% of N, matrix 2 is 15% of N and matrix 3 is 15% of N. is there an easy way to perform this division?

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

Image Analyst 2022-1-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1629495-divide-array-into-3-parts#answer_875085

在 MATLAB Online 中打开

Maybe use this

% Create sample data.
N = 100
M = randi(9, N, 3)
% Split matrix up into parts.
[rows, columns] = size(M)
endingRows = round([0.7, 0.85] * rows)
m1 = M(1:endingRows(1), :);
m2 = M(endingRows(1)+1:endingRows(2), :);
m3 = M(endingRows(2) + 1 : end, :);