NEWS

ecotraj 1.2.2

When using trajectoryDistances with "cycles" objects the elements to be compared are cycles and dates are used for time comparison.
Bug correction in extractCycles() by N. Djeghri

New functions trajectoryConvergencePlot() and cycleShiftArrows() by N. Djeghri
New functions trajectoryCorrespondence(), trajectoryRMA() and trajectoryRMAPlot() by N. Djeghri
Dependency from MannKendall package removed. Now the Mann-Kendall test is performed by calls to cor.test(method = "kendall")

Trajectory subsetting according to time window limits
Bug correction in trajectory definition (missing surveys but existing times)
Bug correction in trajectory asymmetric tests (where done as symmetric previously)

New functions is.metric() and is.synchronous().
Update of function trajectoryInternalVariation() (former trajectoryVariability()).
New function dynamicVariation().
New function variationDecomposition() for synchronous trajectories.
New function interpolateTrajectories() for interpolation to given times.
Function trajectoryConvergence() modified to allow a global convergence test (type = "multiple").

Trajectory data structures have been introduced.
New functions for cyclical trajectory analysis (Djeghri et al, 2026).
New ETA metrics trajectoryVariability() and trajectorySpeeds().
Permutational test added for trajectoryDirectionality().
New function trajectoryMetrics() for evaluation of multiple metrics.
New function trajectoryWindowMetrics() for metrics evaluated over moving windows.
New function trajectoryShifts() to compare trajectories that are similar in shape but differ in speed.
New dissimilarity metric for trajectories, taking into account differences in time.

Update of function 'centerTrajectories' to add flexibility in trajectory centroid definition.
New vignette to illustrate centering.
Improvement of trajectoryProjection() to return relative position within selected segments, also when orthogonal projection does not exist.