RELEASE NOTES 

		spatstat 1.16-0

		30 June 2009
	
OVERVIEW
	Point-and-click interface under development.
	Hanisch-style estimators for summary functions F, G, J, I.
	Convex hull and test for convexity. 
	Legend plotted automatically in plot.fv.
	Kernel smoothing functions accelerated.
	
NEW FUNCTIONS

	iplot
	istat
		Rudimentary point-and-click interface
		for display and analysis of a spatial point pattern 
		(requires the packages 'rpanel' and 'tkrplot')

	is.convex
		Determines whether a window is convex.

	convexhull
		Computes the convex hull of a window,
		a point pattern, a line segment pattern
		or other spatial object.

	Lcross.inhom
	Ldot.inhom
		Inhomogeneous multitype versions of L(r)

IMPROVEMENTS/ENHANCEMENTS

	Fest,Gest,Jest
	Gdot,Gcross,Gmulti
	Jdot,Jcross,Jmulti
	Iest
		The Hanisch style estimators are now also computed
		(i.e. the Hanisch 1984 estimator of G(r),
		the Chiu-Stoyan 1998 estimator of F(r), and the
		corresponding estimators of the other functions)

		These functions have a new argument 'correction'
		to select the edge correction(s).

	plot.fv
		An explanatory legend is now plotted, by default
		(controlled by the new arguments 'legend' and 'legendpos')

	plot.fasp
		New argument 'legend=FALSE' controls whether legends
		are plotted in each panel.

	alltypes
		Now recognises "L" as an abbreviation for Lest, Lcross

	Kinhom 
	density.ppp
		Faster computation in some cases 

	tess
	intersect.tess
	dirichlet
	delaunay
		Faster computation in some cases
		

BUGS

	[1] Fest, Gest
		If the point pattern X was empty, 
		the result of Fest(X) or Gest(X)
		was not an object of class "fv".
		Fixed.

	[2] Linhom
		The error message 'NaNs generated in sqrt(K/pi)'
		sometimes occurred when using the leave-one-out
		estimator of intensity. If a small bandwidth 'sigma'
		was selected, the estimated intensity could be negative
		at some locations (due to rounding effects), generating
		this error. 
		Fixed.
	
	[3] density.ppp
	    density.psp
	    smooth.ppp
	    Kmeasure
	    blur
		These functions sometimes issued a warning 
		that "sigma is too large for this window".
		Fixed.

	[4] plot.tess
		If the tiles of the tessellation were binary masks,
		the plot looked strange.
		(Spotted by Alexandre Villers).
		Fixed.