Supplement 1. The STI package (source code and compiled libraries for Windows and Mac OS X), an R language library for the analysis of the main factors space and time and the interaction in space–time studies using permutation tests.

File List The zipped folder STI_package.zip -- contains the STI R-language package: STI_1.0_source.tar.gz -- Folder containing the source code of the package STI_1.0_win.zip -- package compiled for Windows STI_1.0_mac.tar.gz -- package compiled for Mac OS X Description The R-language STI package performs two-way ANOVA to test space–time interaction in the absence of replication. This Supplement contains the package STI (source code), an R-language library for the analysis of the main factors space and time, and the interaction, in space–time studies, using permutation tests. The functions correspond to the six models presented in Fig. 1 of the paper. The downloadable files comprise the source code as well as packages compiled for Windows and Mac OS X.