Right- and/or left-truncates the prepared location data of individual deployments, using dates supplied in a .csv file. This step runs after smru_prep_loc() or wc_prep_loc() and before the SSM is fitted. Track truncation is a supervised decision, so the function stops unless the QC mode is delayed-mode (QCmode = "dm"). It is never applied in near real-time QC.

trim_locs(locs_sf, file, QCmode)

Arguments

locs_sf

the prepared location data returned by smru_prep_loc() or wc_prep_loc()

file

path to a .csv file with a ref column (the deployment ID: the SMRU ref, or the Wildlife Computers DeploymentID) and an end_date and/or start_date column. Dates are UTC and may be given as YYYY-MM-DD (midnight) or YYYY-MM-DD HH:MM:SS. Locations at or after end_date and before start_date are removed. Rows with no dates, and any other columns (such as those written by smru_suggest_trim()), are ignored.

QCmode

the QC mode from the config file; must be "dm"

Value

locs_sf with the location data of the listed deployments truncated