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Changelog

Source: NEWS.md

ecotraj 1.1.0

CRAN release: 2025-05-05

  • 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

CRAN release: 2025-04-17

  • 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).