RELEASE NOTES spatstat 1.6-3 12 April 2005 OVERVIEW There is one new function and a few improvements to existing functions. COMPATIBILITY This version should be completely compatible with the previous version 1.6-2. NEW FUNCTIONS crossdist calculates the matrix of distances from each point in a point pattern X to each point in a pattern Y. IMPROVEMENTS/ENHANCEMENTS 1. Kmulti() now runs about 5 times faster. This also affects alltypes(..., fun="K"). 2. The functions pairdist() and nndist() are now generic. They have methods for point patterns (objects of class "ppp") and a default method (for vectors of x, y coordinates). BUGS [1] update.ppm ignored the argument use.gam. Fixed. [2] anova.ppm did not always handle the uniform Poisson model correctly. Fixed, we think. INTERNAL CHANGES The following changes should have no effect on the user: 1. ppm() and update.ppm() now have an additional argument called 'forcefit'. 2. predict.ppm and fitted.ppm have been modified internally.