change the order of columns in a matrix

1 次查看（过去 30 天）

maryam 2015-2-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/179034-change-the-order-of-columns-in-a-matrix

评论： Michael Haderlein 2015-2-18

hi friends. i have a 8000*300 matrix. i want to change the order of columns so that the most similar columns stand together. could any body help me on this? thank you

3 个评论
显示 1更早的评论隐藏 1更早的评论

maryam 2015-2-18

for example these are 2 pictures of column 21 and 53. i want data of these columns beside each other. i dont know how to define similarity. any suggestion?

Michael Haderlein 2015-2-18

What is the feature which is important? How do the other columns look like? Does "similarity" mean that you have a strong gradient after x=4000? Does it mean the plateau is around 0.7? Does it mean you have a negative peak after the first big incline? There are so many possibilities, we cannot know what's the point here.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

khan 2015-2-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/179034-change-the-order-of-columns-in-a-matrix#answer_168411

What do you mean by most similar? Although one thing is that you can order it in aascending or descending order. You will have most similar together..