hbrown
(Package: adehabitatLT) :
Estimates the value of h for a Brownian motion
hbrown estimates the scaling factor h (used in the Brownian motion, see help(simm.brown)) from a trajectory.
● Data Source:
CranContrib
● Keywords: spatial
● Alias: hbrown
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indmove
(Package: adehabitatLT) :
Testing Independence in Regular Trajectory Parameters
The function indmove tests for the independence between successive components c(dx, dy) for each burst in a regular object of class ltraj.
● Data Source:
CranContrib
● Keywords: htest
● Alias: indmove, indmove.detail, testang.ltraj, testdist.ltraj
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offsetdate
(Package: adehabitatLT) :
Date Handling in an Object of Class 'ltraj'
This functions allows to set an offset value from the date in an object of class ltraj of type II (time recorded).
● Data Source:
CranContrib
● Keywords: programming
● Alias: offsetdate
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The two functions ld and dl are useful to quickly convert objects of class ltraj from and to dataframes.
● Data Source:
CranContrib
● Keywords: spatial
● Alias: dl, ld
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gdltraj
(Package: adehabitatLT) :
Working with Trajectories: Specify a Time Period
Gets the parts of the trajectories stored in an object of class ltraj of type II (time recorded), corresponding to a specified time period.
● Data Source:
CranContrib
● Keywords: spatial
● Alias: gdltraj
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The functions acfdist.ltraj and acfang.ltraj compute (and by default plot) a correlogram-like function .
● Data Source:
CranContrib
● Keywords: htest
● Alias: acfang.ltraj, acfdist.ltraj
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plotltr
(Package: adehabitatLT) :
Changes in Traject Parameters Over Time
This function allows a graphical examination of the changes in descriptive parameters in objects of class ltraj
● Data Source:
CranContrib
● Keywords: hplot
● Alias: plotltr
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residenceTime
(Package: adehabitatLT) :
Trajectory Analysis using the Residence Time Method
These functions can be used to apply the residence time method (Barraquand and Benhamou, 2008).
● Data Source:
CranContrib
● Keywords: chron, ts
● Alias: plot.resiti, print.resiti, residenceTime
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as.ltraj
(Package: adehabitatLT) :
Working with Trajectories in 2D Space: the Class ltraj
The class ltraj is intended to store trajectories of animals. Trajectories of type II correspond to trajectories for which the time is available for each relocation (mainly GPS and radio-tracking). Trajectories of type I correspond to trajectories for which the time has not been recorded (e.g. sampling of tracks in the snow).
● Data Source:
CranContrib
● Keywords: spatial
● Alias: as.ltraj, ltraj, print.ltraj, rec, summary.ltraj
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qqchi
(Package: adehabitatLT) :
Quantile-Quantile Plots for Trajectories of Class 'ltraj'
The functions allow the examination of the distribution of trajectories descriptors (see Details).
● Data Source:
CranContrib
● Keywords: distribution
● Alias: qqchi, qqchi.default, qqchi.ltraj, qqnorm.ltraj
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