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dtwSat (version 0.2.8)

Time-Weighted Dynamic Time Warping for Satellite Image Time Series Analysis

Description

Provides an implementation of the Time-Weighted Dynamic Time Warping (TWDTW) method for land cover mapping. TWDTW computes the similarity between satellite image time series with a set of known temporal patterns (e.g. phenological cycles of the vegetation). 'dtwSat' offers the user methods to create temporal patterns for land cover types, perform TWDTW analysis for satellite datasets, visualize the results of the analysis, produce land cover maps, create temporal plots for land cover change, and compute accuracy metrics.

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Version

Install

install.packages('dtwSat')

Monthly Downloads

108

Version

0.2.8

License

GPL (>= 3) | file LICENSE

Issues

0

Pull Requests

0

Stars

2

Forks

0

Maintainer

Victor Maus

Last Published

October 11th, 2022

Functions in dtwSat (0.2.8)

plotArea

Plotting accumulated area
plot

Plotting twdtw* objects
plotAdjustedArea

Plotting area and uncertainty
linearWeight

Linear weight function
logisticWeight

Logistic weight function
plotCostMatrix

Plotting paths
plotClassification

Plotting subintervals classification
plotMatches

Plotting matching points
plotMaps

Plotting maps
plotChanges

Plotting changes
plotDistance

Plotting distance maps
plotMapSamples

Plotting maps
plotPaths

Plotting paths
plotPatterns

Plotting temporal patterns
plotAlignments

Plotting alignments
resampleTimeSeries

Resample time series
shiftDates

Shift dates
plotAccuracy

Plotting accuracy assessment
plotTimeSeries

Plotting time series
reexports

Objects exported from other packages
twdtwClassify

Classify time series
twdtwCrossValidate

Cross Validate temporal patterns
twdtwCrossValidation-class

class "twdtwCrossValidation"
twdtwMatches-class

class "twdtwMatches"
twdtwReduceTime

Faster version of TWDTW apply
twdtwRaster-class

class "twdtwRaster"
subset

Subset time series
twdtwApply

Apply TWDTW analysis
twdtwTimeSeries-class

class "twdtwTimeSeries"
twdtwXtable

LaTeX table from accuracy metrics
twdtwAssessment-class

class "twdtwAssessment"
twdtwAssess

Assess TWDTW classification
dtwSat

Time-Weighted Dynamic Time Warping for Satellite Image Time Series
MOD13Q1.ts

Data: An example of satellite time series
getDatesFromDOY

Get dates from year and day of the year
get

Get elements from twdtwMatches objects
createPatterns

Create patterns
getTimeSeries

Get time series from twdtw* objects
MOD13Q1.MT.yearly.patterns

Data: Pattern time series
MOD13Q1.ts.labels

Data: Labels of the satellite time series in MOD13Q1.ts
MOD13Q1.ts.list

Data: A list of satellite time series
MOD13Q1.patterns.list

Data: patterns time series