RELEASE NOTES 

		spatstat 1.15-2

		14 April 2009

	We thank Tyler Dean Rudolph for suggestions.
	
OVERVIEW
	Five new summary functions for marked point patterns.
	New functionality for tessellations and random sets.
	Faster computation of point-to-line distances.

NEW FUNCTIONS

	Emark, Vmark
		Diagnostic functions E(r), V(r) 
		for dependence between points and marks
		in a marked point pattern.

	markvario
		Mark variogram of a marked point pattern with numeric marks

	markconnect
		Mark connection function of a multitype point pattern

	markcorrint
		Weighted integral of the mark correlation function

	rpoislinetess
		Simulate the Poisson line tessellation

	rMosaicSet
		Generate a random set by selecting some tiles of a tessellation

	rMosaicField
		Generate a random field by assigning a random value
		inside each tile of a tessellation 

	chop.tess
		Subdivide a tessellation by a straight line

	infline
		Infinite straight lines in the plane

IMPROVEMENTS/ENHANCEMENTS

	nncross
		The second argument Y may now be a line segment pattern,
		making it possible to compute the distance from each 
		point of a point pattern X to the nearest line segment in Y.

	nearestsegment
	project2segment
		These functions have been greatly accelerated. 

	markcorr
		Improved and accelerated.

	plot.fv
		New argument 'ylim.covers' 

	Kcross, Kdot, Gcross, Gdot, Jcross, Jdot,
	Kcross.inhom, Kdot.inhom
		Integer values of the arguments i and j
		are no longer accepted.
		These arguments must now be levels of the marks of X.

	plot.fasp
		Labels on the y axes are improved.

		New argument 'cex.outerlabels' controls size of
		outer margin labels.

	Kinhom
		New arguments 'reciplambda' and 'reciplambda2'
		for advanced use.

BUGS
	[1] summary functions (Kest, etc)
		Crashed with a message about unrecognised corrections,
		if the argument 'correction' contained duplicated entries.
		Fixed.

	[2] Kcross, Gcross, Jcross
		In plots of these functions, the double subscripts 
		in the y axis labels were malformed.
		Fixed.