- detector
character string for detector type ("single","multi","proximity")
- type
mask type ("traprect", "trapbuffer", "pdot", "polygon", "user", "subset")
- nmaskpoints
number of points in mask
- xrange
range of x coordinates
- yrange
range of y coordinates
- meanSD
dataframe with mean and SD of x, y, and each covariate
- spacing
nominal spacing of points
- cellarea
area (ha) of grid cell associated with each point
- bounding box
dataframe with x-y coordinates for vertices of bounding box
- covar
summary of each covariate