dupfilter_exact {SDLfilter} | R Documentation |
Filter temporally and spatially exact duplicates
Description
Function to filter temporally and spatially exact locations in tracking data.
Usage
dupfilter_exact(sdata)
Arguments
sdata |
A data frame containing columns with the following headers: "id", "DateTime", "lat", "lon", "qi".
See the data |
Details
This is a partial component of dupfilter
, although works as a stand-alone function.
It looks for temporally and spatially exact locations and retains only a single fix (latitude/longitude pair) per time and location.
Value
The input data frame is returned with temporally and spatially exact duplicates removed.
Author(s)
Takahiro Shimada
References
Shimada T, Limpus C, Jones R, Hazel J, Groom R, Hamann M (2016) Sea turtles return home after intentional displacement from coastal foraging areas. Marine Biology 163:1-14 doi:10.1007/s00227-015-2771-0
See Also
dupfilter
, dupfilter_qi
, dupfilter_time
, dupfilter_space