Re: A matrix-vector problem

On Sat, Feb 13, 2021 at 11:38 AM Alan Turing via Help-octave <
[email protected]> wrote:

> Good Evening. I am currently working on a project in which I have
> developed a
> matrix M (12, 10), with each row's values representing force values in
> Newtons, except the last row, which is filled with angle values (in deg).
> Each column represents a specific angle and the force values I have there.
> What I want to do now is write a script which tells me the max of each
> force
> (essentially the maximum value of each row of matrix M), and at which angle
> that maximum happens. In other words, I need to calculate which column has
> the maximum value for each row (hence for each force), and finally the
> value
> of the bottom row at which that max appears? I have already developed the
> part which calculates the max of the forces, I only need to find the
> corresponding angle. I hope my explanation is clear. Any help? Thanks in
> advance.
>
> --
> Sent from:
> https://octave.1599824.n4.nabble.com/Octave-General-f1599825.html
>
>
>
See the documentation for max
<https://octave.sourceforge.io/octave/function/max.html>:

Since the column M(:,1) is the force column, you can find the maximum in
that column and the corresponding angle as follows:

[Fmax, Findex] = max( M(:,1) )
angle_Fmax = M(Findex,10)