RELEASE NOTES 

		spatstat 1.12-2

		26 October 2007
	
	We thank Dominic Schuhmacher for major contributions.

OVERVIEW
	Distance matching code improved and extended.
	The function `units' has been renamed.
	Bugs fixed.
	Spatstat now requires R version 2.6.0 or later.

NEW FUNCTIONS

	matchingdist
		computes the various distances associated with a given
		matching between point patterns.

RENAMED FUNCTIONS
	
	unit => unitname
		The generic functions `units' and 'units<-' 
		have been renamed `unitname' and 'unitname<-' 
		to avoid a collision with R 2.6.0 and to prevent
		some misunderstandings of the use of these functions.
		The corresponding methods (units.ppp etc) have been
		renamed accordingly.
		This does not affect the internal data format
		and there are no compatibility problems.
	
IMPROVEMENTS/ENHANCEMENTS

	pppdist
		Major improvements for this function. Computation times
		are substantially lower due to new C code. Exact
		results are obtained for higher values of 'q'. New 
		Arguments 'type', 'cutoff', 'matching', 'ccode', and
		'approximation' allow for a wider choice of
		distances to be computed and for better control
		of how computations are done and what output is
		produced. The earlier argument 'belowone' (introduced
		for experimental use) is not valid any more.

	class "pppmatching"
		has new optional elements 'cutoff', 'q' and 'distance'
		that can store more detailed information about the
		point pattern matching. Furthermore, the matches
		between individual points may now have an arbitrary
		weight > 0. The pppmatching constructor function and
		the print, summary and plot methods for the
		pppmatching class have been adapted to accommodate
		these changes.

	demo(data)
		Updated to include the ponderosa dataset.


BUGS

	[1] example(localK)
		Because of a typing error, the example code 
		produced a silly result.
		Fixed.

	[2] various help files
		Typing errors in help files caused the R package installer
		to complain about unbalanced braces.
		Fixed.

	[3] Fortran source code
		Some Fortran compilers issued warnings about
		variables that were declared but not used.
		Fixed.

	[4] C++ source code
		Some C++ compilers issued a variety of warnings
		about the code. 
		Fixed.