la.mathworks.com Spline vs Linear Interpolation I choce it because it has peaks of varying widths, and because it then dives down to zero, where it will be flat, but not go below zero. This computes an interpolating function for the observed points, allowing you to query the function anywhere within its convex hull. In other words, how do I estimate the . A Superb Interpolation Method - Loren on the Art of MATLAB Next, you use scatteredInterpolant to create an interpolant for the data. It is a quick and simple fix, but I recommend . You can evaluate F at a set of query points, such as (xq,yq) in 2-D, to produce interpolated values vq = F (xq,yq). View questions and answers from the MATLAB Central community. Spline vs Linear Interpolation. The scatteredInterpolant class described in Interpolating Scattered Data Using the scatteredInterpolant Class is more efficient in this respect. You can evaluate F at a set of query points, such as (xq,yq) in 2-D, to produce interpolated values vq = F (xq,yq). use scatteredInterpolant variable in embedded matlab function in ... Data Scaling for Scattered Interpolation - Loren on the Art of MATLAB Use scatteredInterpolant to perform interpolation on a 2-D or 3-D data set of scattered data. For your specific data, you would use something similar to the following where xq, yq, and zq are the points at which you want to interpolate the input. Because the answer is not how to modify the plot AFTER you used scatteredInterpolant, but how to use the tool properly (or the proper tool) to produce a better result.