Functions to calculate the \((x,y)\) plotting extent (or bounding box) of various ctmm objects or list of such objects, for use when plotting multiple ctmm objects.
# S4 method for telemetry
extent(x,level=1,...)# S4 method for ctmm
extent(x,level=0.95,level.UD=0.95,...)
# S4 method for UD
extent(x,level=0.95,level.UD=0.95,...)
# S4 method for variogram
extent(x,level=0.95,threshold=2,...)
# S4 method for list
extent(x,...)
A telemetry, ctmm, or UD object.
For telemetry objects, this is the fraction of locations bounded, according to two-sided quantiles. For ctmm and UD objects, this is confidence level for the magnitude of the utilization area circumscribed by level.UD.
Confidence level of the UD area. I.e., the 50% core home range would be given by level.UD=0.50.
Limit ylim to threshold times the maximum semi-variance, even if the level confidence intervals exceed this amount.
Optional arguments for future extensions.
Returns a data.frame with columns x and y with rows min and max.
See vignette('akde') for an example of extent used to plot multiple UDs on the same scale.