RELEASE NOTES 

		spatstat 1.8-4

	 	9 January 2006


	This release contains several bug fixes.

	We thank Rasmus Waagepetersen for drawing them
	to our attention.

BUGS

	[1] Problem in diagnostics for hard core models:

		When applied to a ppm object containing a `hard core'
		(containing one of the interactions StraussHard, 
		MultiStraussHard, or DiggleGratton),
		 
		(i) The diagnostic functions (diagnose.ppm, qqplot.ppm, 
		lurking) crashed;

		(ii) the functions fitted.ppm and residuals.ppm
		returned some values as +Inf. 

		This stemmed from an error in fitted.ppm.
		It has now been fixed.

	[2] ppm
		When called with method="ho", 
		ppm crashed if the argument `start' was not given.
		This has been fixed.