Keep only rows of from whose intersection with to covers more than a given
share of the row's area.
Usage
geo_trim(from, to, thresh = 0.01, bool = FALSE, epsg = 3857)
Arguments
- from
sf object to subset.
- to
sf object used as the target geography.
- thresh
Minimum retained overlap as a proportion of each row's area.
- bool
Logical. If TRUE, return only the logical keep vector.
- epsg
numeric EPSG code to planarize to. Default is 3857.
Value
subset of from, or a logical vector when bool = TRUE
Examples
if (FALSE) { # \dontrun{
# Needs Census Bureau API
data(towns)
block <- create_block_table('NY', 'Rockland')
geo_trim(block, towns, thresh = 0.05)
} # }
data(towns)
data(rockland)
sub <- geo_filter(rockland, towns)
rem <- geo_trim(sub, towns, thresh = 0.05)
