Given a set of cartesian coordinates representing an object's trajectory, this function returns approximated headings computed as the direction of vectors between successive points.

heading(x, y, geo = FALSE)

Arguments

x

A vector of x (or longitude) coordinates corresponding to a single animal trajectory.

y

A vector of y (or latitude) coordinates corresponding to a single animal trajectory.

geo

A logical value indicating whether the locations are defined by geographic coordinates (pairs of longitude/latitude values). Default: FALSE.

Value

A vector of the same length as x and y corresponding to approximated headings along a [x, y] trajectory.

See also

Examples

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