On Mon, May 6, 2019 at 11:04 AM Dmitri A. Sergatskov <address@hidden> wrote:
On Mon, May 6, 2019 at 9:54 AM Dmitri A. Sergatskov
<address@hidden> wrote:
>
> On Mon, May 6, 2019 at 9:50 AM Dmitri A. Sergatskov
> <address@hidden> wrote:
> >
> >
> >
> > On Mon, May 6, 2019 at 9:31 AM Doug Stewart <address@hidden> wrote:
> >>
> >> I am trying to convert some data from wikipedia to octave and I ran into this problem.
> >>
> >> here is the code
> >> **********************************************
> >> data = "" 4.0000 3.1000
> >> 5.0000 4.7400
> >> 6.0000 6.1300
> >> 7.0000 7.2600
> >> 8.0000 8.1000
> >> 9.0000 8.1400
> >> 10.0000 8.7400
> >> 11.0000 8.7700
> >> 12.0000 9.1300
> >> 13.0000 9.1400
> >> 14.0000 9.2600 ];
> >> x = data(:,1);
> >> y = data(:,2);
> >> [P, S, MU] = polyfit (x, y, 1)
> >> y3=S.yf
> >> y2=polyval(P,x)
So if you used MU in polifit, you should use it in polyval as well:
y2=polyval(P,x,[],MU)
y2 =
4.7255
5.2805
5.8356
6.3907
6.9458
7.5009
8.0560
8.6111
9.1662
9.7213
10.2764
Dmitri.
--
Thank you very much. that explains it very well.