sort a matrix in a specific way

Question

Homayoon 2015-6-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/224754-sort-a-matrix-in-a-specific-way

编辑： Stephen23 2015-6-22

Dear All, Although I know how to sort a single column or row in an ascending or descending way, but I do not know how to sort a higher dimension matrix based on a single column. I hope the following example illustrate my point:

I need the matrix to be sorted based on the first column. Basically I need all rows to be sorted based on a simple sort on the first column. Here is the desired output:

I hope you will help me to figure how to sort it out! Thank you so much HRJ

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

Stephen23 2015-6-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/224754-sort-a-matrix-in-a-specific-way#answer_183493

编辑：Stephen23 2015-6-22

在 MATLAB Online 中打开

You can use sortrows for this:

>> A = [12,0,1,65; 5,1,0,340; 13,2,1,100; 9,0,0,0]
A =
    12     0     1    65
     5     1     0   340
    13     2     1   100
     9     0     0     0
>> sortrows(A,1)
ans =
     5     1     0   340
     9     0     0     0
    12     0     1    65
    13     2     1   100