scatter 4dI have 4D array of data that I would like to scatter plot. The data can be seen as x- and y- coordinates for each pair of values of two additional parameters. I would like to flattenplot3D, from Kar Soetaert, is an R package containing many functions for 2D and 3D plotting: scatter3D, points3D, s3D, text3D, ribbon3d, hist3D, etc. In addition to the x, y (and z) values, an additional data dimension can be