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Re: Bivariate Pchip
Posted:
Jan 16, 2013 8:48 PM


"samar" wrote in message <kd6sdp$qnk$1@newscl01ah.mathworks.com>... > Hi all, > > I would like to use Pchip function to interpolate my 2dimensional data set. > > I'm actually using spline interpolation (with csapi function) but it doesn't work well. > I think that Pchip will be better for my data set but I have no idea how to use it with 2 variables: x1 (n values) and x2 (m values) are my variables and V=f(X1,X2) is the n*m matrix containning all values taken by f for each couple (x1,x2) > > The second question can we have the result of pchip in PPFORM? > > Thank you very much for you help!
1. pchip DOES return a ppform.
2. There is no 2d pchip implemented for MATLAB that I know of.
John



