## Order all the rows based on one row.

### Angel Torrado (view profile)

on 8 May 2013
Accepted Answer by the cyclist

### the cyclist (view profile)

Hi!

`   I´ve searching for an answer but I didn´t find any, and before programming a super inefficient function I just wanted to be sure that there weren´t any prebuilt function to do this. So the question is:`

How do you sort all the rows of a matrix based on one specific row. For example, based on the first row:

LENGTH =

```         723        1081         860
1           2           3```

Sorted:

LENGTH =

```         723         860        1081
1           3           2```

Thank you in advance!

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### the cyclist (view profile)

Answer by the cyclist

### the cyclist (view profile)

on 8 May 2013
Edited by the cyclist

### the cyclist (view profile)

on 8 May 2013

Use the sortrows() command.

You are actually sorting columns, so you will need to transpose your array, then sort, then transpose back:

```sorted_L = sortrows(L',1)'
```

### Angel Torrado (view profile)

on 8 May 2013

That worked!! I don´t know why I didn´t think on that... ¬¬

Thank you for the super fast answer!

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