RELEASE NOTES spatstat 1.19-0 14 may 2010 OVERVIEW Numerous bug fixes for ppm(method="ho"). Miscellaneous improvements. NEW FUNCTIONS Fiksel Fiksel's `double exponential' pairwise interaction point process model (for fitting in ppm) IMPROVEMENTS/ENHANCEMENTS runifpoint, rpoispp, envelope These functions now issue a warning if the number of random points to be generated is very large. This traps a common error in simulation experiments. BUGS [1] predict.ppm Predictions were incorrect for ppm(..., method="ho"). Fixed. [2] ppm, logLik, AIC Objects fitted using ppm(..., method="ho") were internally incorrect, yielding incorrect values of logLik() and AIC(). Fixed. [3] profilepl Results were incorrect if the argument 'method="ho"' was used, because of bug [2]. Fixed. [4] rmhcontrol rmhcontrol(NULL) generated an error, instead of assigning default values to the parameters. Fixed.