triang: triangulate positions from locations and bearings

In barryrowlingson/telemetr: Radio Direction-finding Telemetry code

Description

triangulate positions from locations and bearings

Usage

  triang(f, data, method = "mle", subset = TRUE, ...)

Arguments

f	a formula (with no LHS) specifying the bearing and groupings
data	a data frame or spatial data frame with the coordinates, bearings, and groupings
method	name of the method to use
subset	logical vector to subset the data
...	extra parameters passed to the individual methods The formula is minimally of the form ~bearing if every row of the data frame is to be used to compute one location, or of the form ~bearing|f1+f2+f3 if the specified variables after the | are used to construct groups within which the rows consist of one set of observations. If the data frame is not a Spatial Points Data Frame, then the coordinates will be taken from columns named 'x' and 'y'. For specific information about parameters for the different methods, consult the individual functions: trimle, trihub, triand, trirmr. These functions only work on a single set of observations.

Value

A spatial data frame of each position estimate for data within each group.

barryrowlingson/telemetr documentation built on May 11, 2019, 8:30 p.m.