get.densities.3d: Extract tldCube and autodifference approximation functions

In munterfinger/eRTG3D: Empirically Informed Random Trajectory Generation in 3-D

Extract tldCube and autodifference approximation functions

Description

Creates a list consisting of the three dimensional probability distribution cube for turning angle, lift angle and step length (turnLiftStepHist) as well as the uni-dimensional distributions of the differences of the turn angles, lift angles and step lengths with a lag of 1 to maintain minimal level of autocorrelation in each of the terms. Additionally also the distribution of the flight height over the ellipsoid (absolute) and the distribution of flight height over the topography (relative) can be included.

Usage

get.densities.3d(
  turnAngle,
  liftAngle,
  stepLength,
  deltaLift,
  deltaTurn,
  deltaStep,
  gradientAngle = NULL,
  heightEllipsoid = NULL,
  heightTopo = NULL,
  maxBin = 25
)

Arguments

turnAngle	turn angles of the track (t)
liftAngle	lift angles of the track (l)
stepLength	stepLength of the track (d)
deltaLift	auto differences of the turn angles (diff(t))
deltaTurn	auto differences of the lift angles (diff(l))
deltaStep	auto differences of the step length (diff(d))
gradientAngle	NULL or the gardient angles of the track
heightEllipsoid	flight height over the ellipsoid (absolute) or NULL to exclude this distribution
heightTopo	flight height over the topography (relative) or NULL to exclude this distribution
maxBin	numeric scalar, maximum number of bins per dimension of the tld-cube (turnLiftStepHist)

Value

A list containing the tldCube and the autodifferences functions (and additionally the flight height distribution functions)

Examples

niclas <- track.properties.3d(niclas)[2:nrow(niclas), ]
P <- get.densities.3d(
  turnAngle = niclas$t, liftAngle = niclas$l, stepLength = niclas$d,
  deltaLift = diff(niclas$t), deltaTurn = diff(niclas$l), deltaStep = diff(niclas$d),
  gradientAngle = NULL, heightEllipsoid = NULL, heightTopo = NULL, maxBin = 25
)

munterfinger/eRTG3D documentation built on March 25, 2022, 1:22 a.m.