NEWS.md

In vwmaus/dtwSat: Time-Weighted Dynamic Time Warping for Satellite Image Time Series Analysis

dtwSat v1.0.0

Major Updates:

• Dependency Updates: This release removes obsolete dependencies, notably raster, rgdal, and sp.

• Reduced Dependencies: We have significantly minimized the number of package dependencies to streamline the installation and update process.

• Spatial Data Handling with sf and stars: Spatial data handling has been overhauled. We've introduced support for the sf and stars packages to enhance this capability.

• Improved Workflow Compatibility: The package now offers a workflow that aligns more seamlessly with other prevalent image classification workflows.

dtwSat v0.2.8

• Adds faster implementation of TWDTW for logistic weight function

• Fixes small bugs

• Adds vignettes

dtwSat v0.2.7

• Adds support to user defined TWDTW weight function

• Drop support to parallel processing

• Adds a minimalist function called twdtwReduceTime that is 3x faster than twdtwApply. This function can be used for high level parallel processing implemented by users

dtwSat v0.2.6

• Fixes error in to - from : non-numeric argument to binary operator in "twdtwAssess"

• Fixes bug in .twdtw fundtion

• Adds function for fast time series classification "twdtw_reduce_time" (~3x faster than twdtwApply)

dtwSat v0.2.5

• Adds dtwSat paper published on Journal of Statistical Software

• Fixing bugs

Fix error in plotAccuracy

Generalizes twdwAssess to cases with only one map

Fixes error in getTimeSeries due to time series with only one no observation

dtwSat v0.2.4

• New features

Include the function twdtwApplyParallel for TWDTW parallel processing using the package snow

Include writeRaster for twdtwRaster class

Improve tests and documentation

Improve memory usage of twdtwApply

Improve memory usage and speed of twdtwClassify

Auto recognition of the argument "doy" to avoid naming the argument "doy = doy"

• Fixing bugs

Fix bug in twdtwAssess for class twdtwMatches

Fix bug in twdtwRaster

dtwSat v0.2.3

• New features

Register TWDTW as a distance function into package proxy

• Fixing bugs

Fix typos in plot labels

dtwSat v0.2.2 Release Notes

• New features

New accuracy metrics (twdtwAssess) for classified map, including User's and Producer's accuracy, and area uncertainty.

Include methods for accuracy visualization (plot and LaTeX tables)

• Update data set names

Rename the data sets in ordes to avoid future overwriting of functions and data sets. "example_ts" replaced with "MOD13Q1.ts". Tthe data sets are now called:

MOD13Q1.MT.yearly.patterns  Data: patterns time series
MOD13Q1.patterns.list   Data: patterns time series
MOD13Q1.ts  Data: An example of satellite time series
MOD13Q1.ts.labels   Data: Labels of the satellite time series in MOD13Q1.ts
MOD13Q1.ts.list

• Fixing bugs

Fix bug in twdtwApply wrong sign in 'by' argument

Fix bug in time index for twdtwApply-twdtwRaster

dtwSat v0.2.1 Release Notes

• Fix Solaris installation errors.

dtwSat v0.2.0 Release Notes

• Include Fortran optimization

This version includes functions written in Fortran.

• Obsolete features

The S4 class 'twdtw' no longer exists.

• New features

New S4 classes: twdtwTimeSeries, twdtwMatches, and twdtwRaster.

plot methods for twdtwRaster object: 'maps', 'area', 'changes', and 'distance'.

plot methods for twdtwTimeSeries objects: ''patterns'' and ''timeseries''.

plot methods for twdtwMatches objects: ''paths'', ''matches'', ''alignments'', ''classification'', ''cost'', ''patterns'', and ''timeseries''.

createPattern function to create temporal patterns based on set of time series.

getTimeSeries extract time series from raster objects.

twdtwApply apply the TWDTW analysis for raster and time series objects.

dtwSat v0.1.1 Release Notes

• New features

'normalizeQuery' new normalization feature for TWDTW

'template.list' new dataset. List of template time series

arguments 'from' and 'to' in 'classifyIntervals' updated to include 'character' or 'Dates' in in the format 'yyyy-mm-dd'

Align query and template by name if names not null in 'twdtw' function

• deprecated features

  argument 'x' from function 'waveletSmoothing' is deprecated and is scheduled to be removed in the next version. Please use 'timeseries' instead.

  argument 'template' from functions 'twdtw' and 'mtwdtw' is deprecated and is scheduled to be removed in the next version. Please use 'timeseries' instead.

argument 'normalized' is deprecated and is scheduled to be removed in the next version from all methods

'createTimeSequence' is deprecated. Use 'getModisTimeSequence' instead.

Fix function name. 'classfyIntervals' is deprecated. Use 'classifyIntervals' instead.

• Fixing bugs

Fix plot intervals in plotClassify

replace range(x) for range(x, na.rm=TRUE) in all methods

Bug fixed in cost matrix indexing

dtwSat v0.1.0 Release Notes

• First version of dtwSat on CRAN

dtwSat v0.0.1 Release Notes

• Earlier dtwSat development version

vwmaus/dtwSat documentation built on Jan. 28, 2024, 9 a.m.