NEWS.md

In ecotraj: Ecological Trajectory Analysis

ecotraj 1.1.0

• 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").

ecotraj 1.0.0

• Trajectory data structures have been introduced.
• New functions for cyclical trajectory analysis (Djeghri et al, in prep.).
• 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.

ecotraj 0.2.1

• 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.

ecotraj 0.2.0

• New function 'smoothTrajectories' added.
• Update of vignette 'Introduction to to Ecological Trajectory Analysis (ETA)'.
• Correction of squared distances to centroid (GitHub issue #3).
• EQA between individual states and dynamic envelopes (experimental).

ecotraj documentation built on June 8, 2025, 11:24 a.m.