summary.traps: Summarise Detector Array
Description
Concise description of traps
object.
Usage
# S3 method for traps
summary(object, getspacing = TRUE, covariates = FALSE, ...)
# S3 method for summary.traps
print(x, terse = FALSE, ...)
Value
An object of class summary.traps
, a list with elements
- detector
detector
type ("single", "multi", "proximity" etc.)
- ndetector
number of detectors
- xrange
range of x coordinates
- yrange
range of y coordinates
- spacing
mean distance from each trap to nearest other trap
- usage
table of usage by occasion
- covar
summary of covariates
Arguments
- object
traps
object
- getspacing
logical to calculate spacing of detectors from scratch
- covariates
logical; if true each covariate is summarised
- x
summary.traps
object
- terse
if TRUE suppress printing of usage and covariate summary
- ...
arguments passed to other functions
Details
When object
includes both categorical (factor) covariates and
usage
, usage is tabulated for each level of the covariates.
Computation of spacing
(mean distance to nearest trap) is slow
and may hit a memory limit when there are many traps. In this case, turn
off the computation with getspacing
= FALSE.
Examples
Run this codedemo.traps <- make.grid()
summary(demo.traps) ## uses print method for summary.traps object
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