inside: Finds a subset of data inside (or outside) a region

In geo: Draw and Annotate Maps, Especially Charts of the North Atlantic

Description

Finds a subset of data within or without a region, returned as submatrix, boolean vector or indices of the original data.

Usage

inside(lat, lon = 0, reg, option = 1, projection = "Mercator")

Arguments

lat,lon	Latitude and longitude of the data, if lat = 0, lat must have components lat, lon or x, y in case projection is "none".
reg	Region we want to check wheter or not includes the data.
option	How should the results be returned: 1 Submatrix of data inside reg 2 Submatrix of data outside reg 3 Boolean vector, TRUE for data inside reg 4 Boolean vector, TRUE for data outside reg 5 Indices of data inside reg 6 Indices of data outside reg
projection	Projection, default "none"

Value

Submatrix, boolean vector or index to data as described for argument option.

Note

Needs elaboration, why is this needed in addition to geoinside?

See Also

Called by combine.rt, setgrid, calls adapt.

geo documentation built on May 29, 2017, 5:36 p.m.