RELEASE NOTES 

		spatstat 1.14-4

		16 october 2008

We thank Jeff Laake and Arthur Weiss for contributions.
	
OVERVIEW
	Additional tools based on tessellations:
	quadrat methods with quadrats of any shape;
	splitting a pixel image; adaptive estimation of intensity.
	Various improvements.

DEPENDENCE
	spatstat now depends on the (recommended) package 'utils'.

NEW FUNCTIONS

	adaptive.density
		Adaptive estimate of point process intensity
		using the Dirichlet tessellation

	incircle
		Finds the largest circle contained in a given window.

	split.im
		Splits a pixel image into sub-images 

	by.im
		Splits a pixel image into sub-images 
		and applies a function to each sub-image.

	as.owin.tess
		Converts a tessellation to a window.


IMPROVEMENTS/ENHANCEMENTS

	quadratcount
	quadrat.test
		These functions now work with quadrats of any shape,
		specified as a tessellation.

	plot.tess
		New argument 'col' controls the colour of the tile boundaries

	plot.im
		When the argument 'zlim' is given, it now determines
		the range of values plotted in the ribbon,
		as well as the colour map in the main image plot.

	[.im
		The subset index can now be missing

	psp	
		By default, psp() now checks whether the line segments
		are all inside the specified window.
		This action is controlled by the new argument 'check'.

	as.owin
		This function is now generic.

	lgcp.estK
		Printed output improved.

	superimpose
	union.owin
		These functions are now more robust in handling
		strange arguments, such as NULL values, zero-length lists etc

	spatstat.options
		New option 'progress' to control the style of progress reports.

BUGS

	[1] cut.ppp
		Sometimes gave incorrect results when 'z' was a tessellation
		with irregular tiles. 
		Fixed.

	[2] kppm
		Did not handle 'startpar' correctly.
		Fixed.

	[3] Progress Reports
		On some systems, progress reports (printed during a
		long calculation) were not displayed synchronously.
		Fixed.