.xyz file functions

Read .xyz files and make gridded datasets.

Here are two functions:

xyzread reads text .xyz files into your Matlab workspace. This is written for GMT-generated .xyz files, but may work for other .xyz files as well.

xyz2grid converts the columnated data from a .xyz file into a gridded dataset that can be viewed with surf, pcolor, or imagesc. Note: this function does not interpolate! It simply reshapes the z values from a column of z data and puts them into a 2D matrix.