search for: interp2d

...t to perform linear interpolation to pick out certain points. In matlab appropriate call is something like Pout=interp2(X,Y,P,Xout,Yout, method="linear") where Xout and Yout are the locations where I want the Pout data (typically a different grid). (Scipy has this routine in interpolate.interp2d, with similar arguments) In R there is (as often) the choice between many different interpolation routines. Akima has one for irregularly spaced data (and does not like co-linearity in the data). Fields has another one, with a more complicated arguments. What is the best R function that accompli...