how to create a contour for a fittype object?
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi,
i've fitted a surface for a scattered data using the following commands:
load('full_data.mat')
ft = fittype( 'poly11' );
opts = fitoptions( 'Method', 'LowessFit' );
opts.Normalize = 'on';
opts.Robust = 'LAR';
[fitresult, gof] = fit( [full_data(:,1), full_data(:,2)], full_data(:,3), ft, opts );
is it possible to plot the contours for this surface after i plotted the surface itself using the next command:
plot(fitresult, [full_data(:,1), full_data(:,2)], full_data(:,3) );
thank you for your help.
0 Kommentare
Akzeptierte Antwort
Mike Garrity
am 8 Jul. 2015
Bearbeitet: Mike Garrity
am 8 Jul. 2015
One simple way is to get the data from the surface that the plot method creates.
h = plot(fitresult, [full_data(:,1), full_data(:,2)], full_data(:,3) );
s = findobj(h,'Type','surface');
figure
contour(s.XData,s.YData,s.ZData)
The "cleaner" option would be to use the feval method. You need to pass in the XData and YData. Something like this:
load franke
T = table(x,y,z);
f = fit([T.x, T.y],T.z,'linearinterp');
[x,y]=meshgrid(linspace(500,3500,40),linspace(0,1,40));
z=feval(f,x,y);
contour(x,y,z)
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Spline Postprocessing finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!