- This contains a set of data about human mobility, subsistance, population, and environmental productivity derived from the Standard Cross Cultural Sample. Missing cases have been filled in via Multiple Imputation. It also contains a suite of R scripts for processing these data. Included routines are cluster analyses, Multidimentional Scaling, and Canonical Correspondence analysis. Plotting commands are also included. These data and analyses were used in my article "Towards a theory of punctuated subsistence change," published in PNAS.