RELEASE NOTES 

		spatstat 1.6-8

		14 June 2005

OVERVIEW

	3 new functions, 2 new datasets,
	4 improvements to existing functions.

NEW FUNCTIONS

	Iest
		estimates the summary function I(r)
		for a multitype point pattern

	rlabel
		random (re)labelling of a point pattern

	rtoro
		random toroidal shift 


NEW DATASETS

	ants
		The Harkness-Isham ants nest data

	humberside
		The North Humberside childhood leukaemia and lymphoma data 


IMPROVEMENTS/ENHANCEMENTS

	1. alltypes
		will now compute an array of 'dot' functions
		(Gdot, Jdot, Kdot) as an alternative to the
		'cross' functions (Gcross, Jcross, Kcross)
		Example:
			plot(alltypes(X, "Gdot"))

	2. envelope
		The simulations can now be specified by an `expression'.
		Example:
			plot(envelope(X, simulate=expression(rSSI(100,0.05))))
		computes simulation envelopes based on 99 realisations
		of Simple Sequential Inhibition.

	3. plot.fv
		the plotting formula may now use the symbol "." 
		to represent all function values.
		Examples: 
			plot(Kest(X), . ~ r)
			plot(Kest(X), sqrt(./pi) ~ r)

	4. plot.fv
		New argument 'lwd' controls the line width.


COMPATIBILITY

	No compatibility problems identified.

BUGS

	No bugs found.