how to sort 2 columns values based on one column

18 次查看(过去 30 天)
4 9 60 41
5 6 68 34
6 9 61 14
7 8 63 24
1 7 67 26
2 7 66 20
3 8 55 13
4 7 52 28
5 9 62 48
6 8 78 58
7 11 59 44
1 8 77 48
2 8 72 35
3 8 67 23
4 12 61 15
5 8 67 15
6 5 62 24
7 8 67 24
1 7 66 21
2 6 69 25
3 10 65 17
I have 4 column, first one is showing days (where monday=1) and the next ones is showing sleep,Heart Rate and Stress data. I want to sort these columns in another array in the way all the days data turn into descending order,e.g
1 7 67 26
1 8 77 48
1 7 66 21
2 7 66 20
2 8 72 35
2 6 69 25
3...
and so on ... Could someone please help me with this?

采纳的回答

madhan ravi
madhan ravi 2019-6-4
[~,idx]=sort(matrix);
matrix(idx,:) % first column sorted in ascending order if vice versa use 'descend' option
  3 个评论
madhan ravi
madhan ravi 2019-6-5
Not sure what you mean, perhaps it would be better off if you start a new question with all the necessary illustrations.
Lasse Embøl
Lasse Embøl 2021-4-27
What does ~ mean? What does idx mean? What does : mean?
The answers is very convoluted and not generalizable.
How do i, in easy terms, sort A and B column vectors by A column, descending in values?

请先登录,再进行评论。

更多回答(1 个)

Rob L
Rob L 2019-6-4
Check help on 'sortrows'.

类别

Help CenterFile Exchange 中查找有关 Shifting and Sorting 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