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Integration of scattered data

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PJ
PJ 2013-3-1
Hello,
I'm having the following problem: I'm using TriScatteredInterp to interpolate discrete points.
vq=TriScatteredInterp([x(:),y(:),z(:)],p_abs(:),'natural')
i.e. the value at (x1,y1,z1) can be evaulated with vq(x1,y1,z1).
I would like to integrate this value over the thickness, e.g. at x=0, y=0.
f=@(z)vq(0,0,z);
quad(f,0,1)
I get the following error:
Error using TriScatteredInterp/subsref
The input data has inconsistent size.
Error in @(z)vq(0,0,z)
Error in quad (line 76)
y = f(x, varargin{:});
Error in fit_press_test_3d (line 30)
quad(f,0,1)
Integration with trapz gives the same error.

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采纳的回答

ChristianW
ChristianW 2013-3-1
vq(scalar,scalar,vector) doesnt work.
f=@(z)vq(zeros(size(z)),zeros(size(z)),z);

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