Integrate a fit result object.
Syntax
inty = integrate(fresult,x,x0)
where
fresult |
A fit result object |
x |
The values at which fresult is integrated |
x0 |
The integration starting point |
inty |
A vector of integration values |
Description
inty = integrate(fresult,x,x0) integrates the fit result object fresult at the values specified by x starting from x0, and returns the result to inty. The fresult object is a fit result object generated by the fit function. x is a scalar or column vector and inty is the same size as x. x0 is a scalar.
Example
Create a noisy sine wave on the interval [-2\(\pi\), 2\(\pi\)].
rand('state',0);
x = (-2*pi:0.1:2*pi)';
y = sin(x) + (rand(size(x))-0.5)*0.2;
Create a custom fit type, and fit the data using reasonable starting values.
ftype = fittype('a*sin(b*x)');
fit1 = fit(x,y,ftype,'startpoint',[1 1]);
Calculate the integral for each value of x starting at -2\(\pi\)
inty = integrate(fit1,x,x(1));