MathGroup Archive 2007

[Date Index] [Thread Index] [Author Index]

Search the Archive

ListIntegrate3D ?


Hi,
I have a list of x,y,z data:
x1, y1, z1
x2, y2, z2
...
xN, yN, zN

That defines a surface z=f(x,y).  I would like to be able to integrate
to compute the area under this surface.

To do this, I assume I need first need to interpolate the surface,
then integrate the interpolated approximation (which will be an
approximation to f(x,y)).  In 2D this seems straightforward, using
NumericalMath`ListIntegrate`.  Could anyone suggest how I could do
this in 3D?

The data is two parameters (x,y) and z is the (log)-likelihood of a
model given the parameters.  I'm trying to integrate the likelihoods
over (x,y) to compute a posterior distribution.

Many thanks for your help.

Trevor



  • Prev by Date: Re: drawing
  • Next by Date: Re: Function as an argument
  • Previous by thread: Re: Integrate bugs
  • Next by thread: Re: ListIntegrate3D ?