
Software Essentials 39
of a model fitted to the data. Such techniques, although well known in other areas of data
analysis, have only recently been develope d for spatial point patterns. The spatstat pack age
is un ique in p roviding a wide range of graphical diagnostic tools for validating models of spatial
point patterns. Tools include residuals, leverage, influence , partial residual plots, added variable
plots, compensators, and residual summary statistics.
The spatstat package is organised around statistical concepts and termino logy . The name
of a command in spatstat conforms to the standard statistical n omenclature used in R wherever
possible. ...