Changes to the trajr
package
trajr 1.5.0.9000
- Minor documentation changes: mention 3D in package overview and use new roxygen method to generate package documentation (https://github.com/r-lib/roxygen2/issues/1491).
trajr 1.5.0
- Added some basic 3D trajectory functionality; see
Traj3DFromCoords
and all functions prefixed with Traj3D
.
TrajAngles
now returns NA
for the angles before and after zero-length segments. Thanks to Valentin Baumann for identifying this bug. This change could potential cause problems with existing code, but such a problem would indicate a problem with the old analysis. The bug occurred because in base R, Arg(0) == 0
, which is not correct. Various function that take means of TrajAngles now remove NA values.
- Added function
TrajFromTrjPoints
to simplify operations such as removing zero-length segments from a trajectory.
- Fix documentation of
TrajDirectionalChange
and TrajAngles
. The documentation incorrectly stated that the number of angles returned was number of points - 1. It now states that the number of angles is number of points - 2 (which is number of segments - 1).
- Fix bug in
TrajFromCoords
that incorrectly treated NA values in columns other than coordinates or time as an error.
- Fix bug in
TrajScale
; yScale
was being ignored.
- Add some more named parameters to
plot.Trajectory
to avoid passing them to graphics::lines
.
- Add arg
simConstantSpeed
to TrajRediscretize
and Traj3DRediscretize
.
- Add arg
check.names
to TrajsMergeStats
.
- Updated github continuous integration actions (using usethis::use_github_action(“test-coverage”) and usethis::use_github_action_check_release()). This change does not affect users
trajr 1.4.0
- Allow the creation of trajectories with 0 points in
TrajFromCoords
.
- Fixed bug in TrajSpeedIntervals: no intervals were being returned if the entire trajectory qualified as an interval.
- Fix bug in plot.TrajSpeedIntervals: time (x-axis) didn’t handle trajectories with a non-zero starting time.
- Added functions to assist in simulating trajectories that are bounded or vary spatially in some way. The new functions are
TrajInPolygon
, TrajSplit
, TrajMerge
and TrajSplitAtFirstCrossing
.
- Added functions to calculate velocity and acceleration:
TrajVelocity
and TrajAcceleration
. The documentation for TrajDerivatives
has been updated to state that the acceleration
returned is not really acceleration, rather it is change in speed over time.
- Added argument
diff
to TrajSpeedIntervals
to control how speed is calculated. Default is “backward” so the function is backwards-compatible, although “central” is usually a better choice.
trajr 1.3.0
- Detect and report some invalid parameter values.
- Altered handling of parameter
readcsvFn
to TrajsBuild
to make it possible to use readr::read_csv
without a wrapper function.
- Added function
TrajResampleTime
to resample a trajectory to fixed step times.
- Added parameters
start.pt.pch
and start.pt.col
to plotting functions.
- Added parameter
dt
to TrajTranslate
- Fix vertical extents of rectangles in
plot.TrajSpeedIntervals
to handle non-default ylim values.
- Added optional progressbar to
TrajsMergeStats
.
- TrajsMergeStats now passes the arguments
stringsAsFactors = FALSE
to rbind. This prevents incorrect behaviour and the warning “invalid factor level, NA generated” if one or more of your statistics are characters.
- Enhanced
TrajRotate
to allow absolute rotation and arbitrary origin of rotation.
trajr 1.2.0
- Added start.pt.cex parameter to function
lines.Trajectory
.
- Added function
TrajConvertTime
.
trajr 1.1.0
- Added correct citation.
- Fixed:
plot.TrajSpeedIntervals
was not passing additional arguments (...
) to plot
.
- Added: functions
TrajDuration
, TrajMeanVelocity
, TrajTranslate
.
- Added
translateToOrigin
parameter to function TrajsBuild
.