Prepare the time values for covariate calculation based on type of time
value.
Arguments
- time
Time value
- format
Type of time to return in the $time column. Can be
"timeless" (ie. Ecoregions data), "date" (ie. NARR data), "hour"
(ie. GEOS data), "year" (ie. SEDAC population data), or "yearmonth"
(ie. TerraClimate data).
Value
a Date, POSIXt, or integer object based on format =
