R Data Analysis Cookbook - Second Edition

Using a 3D histogram

The three-dimensional histogram function, hist3D(), has the following attributes:

• z: Values contained within a matrix.
• x, y: Vectors, where length of x should be equal to nrow(z) and length of y should be equal to ncol(z).
• colvar: Variable used for the coloring and has the same dimension as z.
• col: Color palette used for the colvar variable. By default, a red-yellow-blue color scheme.
• add: Logical variable. If TRUE, adds surfaces to the current plot. If FALSE, starts a new plot.

Let's plot the Death rate of Virgina using a 3D histogram:

data(VADeaths)hist3D(z = VADeaths, scale = FALSE, expand = 0.01, bty = "g", phi = 20, col = "#0085C2", border = "black", shade = 0.2, ltheta = 80, space = 0.3, ticktype = "detailed", ...