Matrix Extraction based on summation.
显示 更早的评论
Hi.
I have 81*81 matrix. I need to extract a matrix from that, for example of order 81*2, which include two columns i.e. the 34th column and the sum of 22,39 and 59 columns.
I will be really thankful for any suggestion or help. Thanks
采纳的回答
John D'Errico
2015-4-7
Easy peasy.
B = A(:,[34 22 39 59])*[1 0 0 0;0 1 1 1]';
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Resizing and Reshaping Matrices 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
