Numeric. Vector of numeric pump IDs to subset from the neighborhoods defined by pump.select. Negative selection possible. NULL uses all pumps in pump.select.
pump.select
Numeric. Numeric vector of pump IDs that define which pump neighborhoods to consider (i.e., specify the "population"). Negative selection possible. NULL selects all pumps.
vestry
Logical. TRUE uses the 14 pumps from the Vestry Report. FALSE uses the 13 in the original map.
weighted
Logical. TRUE computes shortest path weighted by road length. FALSE computes shortest path in terms of the number of nodes.
multi.core
Logical or Numeric. TRUE uses parallel::detectCores(). FALSE uses one, single core. You can also specify the number logical cores. On Windows, only multi.core = FALSE is available.
area
Logical. Area polygons.
path
Character. "expected" or "observed".
path.color
Character. Use a single color for all paths. NULL uses neighborhood colors defined by snowColors().
path.width
Numeric. Set width of paths.
alpha.level
Numeric. Alpha level transparency for area plot: a value in [0, 1].