RELEASE NOTES

spatstat 1.64-2

04 November 2020

We thank Corey Anderson, Andy Craig, Marcelino de la Cruz, Pavel Fibich, Kurt Hornik, Gopalan Nair, Yonatan Rosen and Rasmus Waagepetersen for contributions.

OVERVIEW

spatstat now depends on the new package ‘spatstat.sparse’.
spatstat now depends on R version 3.5.0 or later.
Changed default value of ‘stringsAsFactors’.
predict.mppm now works for multitype point process models.
Improved handling of ‘newdata’ in predict.mppm.
More support for multi-dimensional patterns.
Bug fixes and minor improvements.
Version nickname: “Keeping up with the K-functions”

NEW FUNCTIONS

intersect.boxx
Compute intersection of boxes in multi-dimensional space
scale.boxx, scale.ppx
Methods for ‘scale’ for boxes and patterns in multi-dimensional space
shift.boxx, shift.ppx
Methods for ‘shift’ for boxes and patterns in multi-dimensional space
is.boxx
Determine whether an object is a multidimensional box

SIGNIFICANT USER-VISIBLE CHANGES

package structure
We have removed some internal code from spatstat
to make a new sub-package ‘spatstat.sparse’,
which is now Required by ‘spatstat’.
sumouter, quadform, bilinearform
These functions have been moved to the new sub-package ‘spatstat.sparse’.
hyperframe, as.im.function
The formal default value of ‘stringsAsFactors’ has been changed to ‘NULL’
to conform to changes in R. (The actual default value is TRUE for R < 4.1.0
and FALSE for R >= 4.1.0)
predict.mppm
Now supports multitype point process models.
predict.mppm
Improved handling of argument ‘newdata’
densityHeat
Default behaviour has changed slightly.
New argument ‘finespacing’.
density.lpp
Accelerated when the pattern contains duplicated points.
rotmean
The result now has the same ‘unitname’ as the input object X.
New argument ‘adjust’ controls the smoothing bandwidth.
sessionInfo
Output now includes a list of packages that are imported but not loaded.
rlabel
New argument ‘group’ specifies that the points are divided into
several groups, and that relabelling is applied within each group.
plot.psp
The code for ‘style=”width”’ has been completely rewritten,
so that it no longer depends on plot.linim, and is much more efficient.
The formal argument list has been extended.
mincontrast
New argument ‘action.bad.values’ specifies what action is taken
when the summary function produces NA or NaN or infinite values.
sessionLibs
Package names are now sorted alphabetically.
[.linim
Accelerated.
integral.im
Accelerated in the case where ‘domain’ is a tessellation.
cbind.hyperframe
Row names are not altered (previously they were altered using ‘make.names’)
simulate.ppm
Now recognises the argument ‘window’ as an alternative to ‘w’.
kppm
Improved numerical robustness.
Kcross, Gcross, Jcross
Function labels (shown on the plot legend) have been improved when i = j.
anova.mppm
Issues a warning when applied to random-effects models
(models fitted using the argument ‘random’).
[.ppx
New argument ‘clip’

BUG FIXES

deviance.lppm, pseudoR2.lppm
Results were completely incorrect, due to a coding error.
Fixed.
colourmap
If a colour map was applied to numbers lying outside the range of the
colour map, the wrong number of NA’s was sometimes produced.
Fixed.
Gest
If correction=”rs” or correction=”km”, then both the reduced-sample
(border correction) and Kaplan-Meier corrected estimates were calculated.
[Spotted by Gopalan Nair.]
Fixed.
Lcross.inhom, Kcross.inhom, Kmulti.inhom
The option ‘correction=”none”’ was accepted but ignored.
[Spotted by Corey Anderson.]
Fixed.
rMatClust, rThomas, rCauchy, rVarGamma
In cases where the model was degenerate (effectively a Poisson process)
the result did not have attributes ‘Lambda’ and ‘parents’
even when the user requested them.
Fixed.
model.matrix.mppm
Crashed with random-effects models.
Fixed.
anova.mppm
Crashed with random-effects models.
Fixed.
objsurf.kppm
Crashed if the model was fitted by Palm likelihood (method=”palm”)
or second order composite likelihood (method=”clik2”).
Fixed.
MinkowskiSum
Crashed sometimes with an error message about ‘sumconnected’.
Fixed.
simulate.rhohat
Crashed when applied to rhohat objects computed from data
on a linear network.
Fixed.
hyperframe
Crashed if the argument ‘row.names’ was given
and the hyperframe had exactly one row.
Fixed.

Release notes are available in raw text format here.

Spatstat