RELEASE NOTES spatstat 1.9-6 27 September 2006 We thank Colin Beale for suggestions. OVERVIEW Extensions to smoothing code. Extension to inhomogeneous K function. Minor improvements. NEW FUNCTIONS density.splitppp Computes a kernel estimate of intensity for each of the components in a split point pattern. plot.listof Plot method for `listof' objects. This makes it possible to type, e.g. plot(density(split(lansing))) summary.profilepl method for `summary' for the value returned by profilepl(), e.g. s <- data.frame(r=seq(0.05,0.15, by=0.01)) ps <- profilepl(s, Strauss, cells) summary(ps) trim.rectangle Simple convenience function for cutting a margin off several sides of a rectangle. IMPROVEMENTS/ENHANCEMENTS density.ppp Anisotropic smoothing of point patterns is now possible using the argument `varcov', which controls the variance-covariance matrix of the Gaussian smoothing kernel. (Suggested by Colin Beale) Kinhom If the intensity values lambda are not given, they are now estimated using a leave-one-out kernel smoother. Fest, Gest, Jest Computation slightly accelerated. eroded.areas Computation slightly accelerated. BUGS [1] plot.im plot(Z, ribbon=FALSE, axes=FALSE) ignored 'axes'. Fixed. [2] plot.owin, plot.ppp Did not correctly handle the case where 'main' is an expression. Fixed.