Trim Away Small Pieces — geo_trim • geomander

Trim Away Small Pieces

geo_trim(from, to, thresh = 0.01, bool = FALSE, epsg = 3857)

Arguments

from: Required. sf dataframe. the geography to subset
to: Required. sf dataframe. the geography that from must intersect
thresh: Percent as decimal of an area to trim away. Default is .01, which is 1%.
bool: Optional, defaults to FALSE. Should this just return a logical vector?
epsg: numeric EPSG code to planarize to. Default is 3857.

Value

sf data frame or logical vector if bool=TRUE

Examples

if (FALSE) {
# 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)