Name

poly2 — Quadratic trend function.

Calling Sequence

   f = poly2(x)
   [f, df] = poly2(x)
   
   

Parameters

x:

m*n matrix with design sites

f:

[1 S S(:,1)*S S(:,2)S(:,2:n) ... S(:,n)^2]

df:

derivatives(not implemented);

Description

Second order polynomial trend function.

Examples


// 1D example
// zero noise
x_bound=[-2; 2];
X=(linspace(x_bound(1),x_bound(2),4))'; // Points of experiment
YExp=sin(X);// Response values
noise=0;theta=1;
[kmodel] =km(X,YExp,poly2,'gaussian',theta,noise);
[kmodel] =km(X,YExp,2,'gaussian',theta,noise);


   

See also

poly0, poly1, km, findTheta, SimulateGaussian, SimCondGaussian

Authors

Janis Janusevskis, 3MI/EMSE

Bibliography