RELEASE NOTES spatstat 1.13-0 11 April 2008 OVERVIEW The package now runs 10-20% faster. A new point process model has been added. NEW FUNCTIONS BadGey A new interaction for point process models (ppm). This interaction is defined as a hybrid of several Geyer interactions. IMPROVEMENTS/ENHANCEMENTS Kest, Fest, Gest, Jest, Lest, Kinhom, Kmulti, Kmulti.inhom, localK, pcf, markcorr, pairdist, crossdist, nndist, nnwhich, nncross, ppm, predict.ppm, distmap, dilate.owin, bdist.pixels, diameter, hausdorff, marktable, applynbd, inside.xypolygon, inside.owin, rMaternII The functions listed above now run faster. Time savings of 10% to 20% are typical. owin, ppp, psp Some window operations also run faster. Geyer OrdThresh PairPiece StraussHard SatPiece Computations for these point process interactions (in ppm, predict.ppm, residuals.ppm etc) are now slightly faster. BUGS None reported.