atl_get_speed: Calculate instantaenous speed.

In Orrslab/Pratik_atlastools: Tools for High Frequency Tracking Data

Description

Calculate instantaenous speed.

Usage

atl_get_speed(data, x = "x", y = "y", time = "time", type = c("in"))

Arguments

data	A dataframe or similar which must have the columns specified by x, y, and time.
x	The x coordinate.
y	The y coordinate.
time	The timestamp in seconds since the UNIX epoch.
type	The type of speed (incoming or outgoing) to return. Incoming speeds are specified by type = "in", and outgoing speeds by type = "out".

Value

A vector of numerics representing speed. The first position is assigned a speed of NA.

Orrslab/Pratik_atlastools documentation built on Dec. 31, 2020, 3:23 p.m.