Added fortify() method to plot metamers directly with ‘ggplot2’.
The perturbation argument in metamerize() can now be a vector of equal in length to change
Multiple minimization functions can be passed to minimize.
Added function mean_self_proximity() that computes the inverse of the mean minimum distance between each datapoint. Pass it to minimize if you don’t want it to clump.
Small speed improvement.
NEWS.md file to track changes to the package.