extracting data points after fitting

what i did is...i loaded file in command window...defined x and y parameters...

load test.dat x=test(:,1); y=test(:,2); cftool

den i opened cftool

in this window i used "interpolate" in fitting options...which gives an overplot on my original data thus giving me now a continous fitted curve...below it is residual(about 0)... now i want the data points of this fitted curve...how will i do it...??

[Ahmed Alotaibi]

Aditi,

Have you solved this yet?

Answer 1

[David Sanchez]

Save the fitting in the workspace, then:

my_pol = [fitting.p1 fitting.p2]; % insert the parameters from your fitting
X = 0:0.1:10; % define your x data here
Y = polyval(my_pol,X);  % your Y data

Answer 2

[aditi]

thanks for replying. i saved the fit in workspace with following names:

save fit to MATLAB object name: fittedmodel2

save goodness of fit to MATLAB struc named: goodness2

save fit output to MATLAB struct named: output2

now what should i do..?? last two commands are not clear to me...m new to MATLAB maybe thats y... :(

also since m fitting with interpolant...there are no parameters I want data points of the fit curve..i.e the new curve