A function for estimating the User Equivalent Range Error (UERE) of a GPS device from calibration data.
uere(data,diagnostic=FALSE)Telemetry object or list of telemetry objects corresponding to calibration data with Movebank column GPS.HDOP.
Return extra details, such as the UERE's 95% confidence interval and a plot.
The UERE estimate.
Often times GPS animal tracking devices return HDOP values but do not specifiy the device's UERE necessary to transform the HDOP values into absolute errors.
This function allows users to estimate the UERE from calibration data, where the device was left fixed over a period of time.
Otherwise, when error=TRUE in ctmm, ctmm.fit will estimate the UERE simultaneously with the movement model, which is less reliable than using calibration data.