RELEASE NOTES 

		spatstat 1.11-6

		18 May 2007
	
OVERVIEW
	Eight bug fixes.
	Enhancement to subsetting operation for pixel images.
	Support for logLik, AIC, BIC for Poisson models.

NEW FUNCTIONS

	logLik.ppm
		Method for the generic function "logLik".
		Extracts the maximised loglikelihood of a 
		fitted Poisson point process.
		
		This also makes it possible to compute the AIC 
		(Akaike Information Criterion) and BIC (Bayesian
		Information Criterion) for a Poisson point process model.
		
IMPROVEMENTS

	[.im
		New argument `raster' allows the user to 
		determine the pixel grid for the return value.

BUGS 
	[1] rmpoispp
		If lambda was a pixel image, then the point pattern
		generated by rmpoispp(lambda, types=types) 
		was a point pattern inside the unit square,
		instead of a pattern inside the window containing lambda.
		Bug was introduced in spatstat 1.11-3.
		Fixed.

	[2] rmh, rmhmodel
		Occurs under R 2.5.0.
		For some models, rmh crashes, and a warning is generated:
		"$ is deprecated for atomic vectors; NULL returned".
		Fixed.
		
	[3] ewcdf, ks.test.ppm
		ewcdf returned incorrect values if the argument x was
		not already sorted in increasing order.
		This *may* have led to incorrect p-values in ks.test.ppm.
		Bug introduced in spatstat 1.11-2.
		Fixed.

	[4] ppm and related functions
		Occurs under R 2.5.0.
		A warning message 
		"multiple-argument returns are deprecated..."
		was generated. 
		***This is a bug in R 2.5.0.***
		A workaround has been implemented.

	[5] interp.im
		Generates an error 
		"number of items to replace is not a multiple of..."
		Bug introduced in spatstat 1.11-5.
		Fixed.

	[6] ks.test.ppm
		Crashed with message 'object Z not found' in some cases. 
		Bug introduced in spatstat 1.11-5.
		Fixed.

	[7] diagnose.ppm
		Occurs under R 2.5.0.
		Generated warning 
		"$ is deprecated for atomic vectors; NULL returned".
		Fixed.

	[8] example(Pairwise)
		One of the examples generated a warning
		"42 points were illegal under the model"
		because the parameters of the model were chosen incorrectly.
		Bug present since time immemorial.
		Fixed.