cholera (version 0.9.1)

walkingPath: Compute walking path from case/landmark to nearest or selected pump.

Description

Compute walking path from case/landmark to nearest or selected pump.

Usage

walkingPath(origin = 1, destination = NULL, type = "case-pump",
  vestry = FALSE, latlong = FALSE, case.set = "observed",
  location = "nominal", weighted = TRUE, distance.unit = "meter",
  time.unit = "second", walking.speed = 5, include.landmarks = TRUE)

Arguments

origin

Numeric. Vector of origin(s) (numeric or case/landmark name).

destination

Numeric. Vector of destination(s) (numeric or landmark/pump name).

type

Character. Path case to pump. FALSE is all other combinations of cases, landmarks and pumps.

vestry

Logical. TRUE uses the 14 pumps from the map in the Vestry Report. FALSE uses the 13 pumps from the original map.

latlong

Logical.

case.set

Character. "observed" or "expected".

location

Character. For cases and pumps. "anchor, "fatality" or "orthogonal.

weighted

Logical. TRUE computes shortest path in terms of road length. FALSE computes shortest path in terms of the number of nodes.

distance.unit

Character. Unit of distance: "meter" or "yard".

time.unit

Character. "hour", "minute", or "second".

walking.speed

Numeric. Walking speed in km/hr.

include.landmarks

Logical. Include landmarks as cases.