[R-sig-Geo] Question of ppm warnings of print.ppm

[Adrian Baddeley]

caspar hallmann <caspar.hallmann at gmail.com> writes:

 > I am attempting to fit an inhomogeneous poisson point process to some
 > point pattern data, using ppm from spatstat (v 1.17-5).

This version is out-of-date.
The current version of spatstat is 1.20-3.
Try upgrading the package and seeing if you still encounter this problem.

Adrian Baddeley

====

 > I have been found guilty of having NA values in my
 > covariate-images (a categorical variable),
 > and have thus been receiving a lot of warnings.

 > Having fitted my model and in attempt to print a summary
 > (or the ppm model) my screen is cluttered with

  > ..$ na.covariates:List of 3
 >   .. ..$ covnames.na  : chr "habitat"
  >  .. ..$ quadpoints.na: logi [1:4219, 1]
 >              FALSE FALSE FALSE FALSE FALSE FALSE ...
 >  .. ..$ print        : chr "Values of the covariate ?habitat? were NA
 > or undefined at 7.8% (327 out of 4219) of the quadrature points"

 > replicated uncountable times, and not allowing me to see any of the
 > useful results.