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ShapeSelectForest

1.7

Shape Selection for Landsat Time Series of Forest Dynamics

0packages depend
2.3Kdownloads / year
test coverage
13/13checks pass

Overview

About
Maintained by Xiyue LiaoFirst published 2015-06-018 releasesCRAN page ↗

Landsat satellites collect important data about global forest conditions. Documentation about Landsat's role in forest disturbance estimation is available at the site https://landsat.gsfc.nasa.gov/. By constrained quadratic B-splines, this package delivers an optimal shape-restricted trajectory to a time series of Landsat imagery for the purpose of modeling annual forest disturbance dynamics to behave in an ecologically sensible manner assuming one of seven possible "shapes", namely, flat, decreasing, one-jump (decreasing, jump up, decreasing), inverted vee (increasing then decreasing), vee (decreasing then increasing), linear increasing, and double-jump (decreasing, jump up, decreasing, jump up, decreasing). The main routine selects the best shape according to the minimum Bayes information criterion (BIC) or the cone information criterion (CIC), which is defined as the log of the estimated predictive squared error. The package also provides parameters summarizing the temporal pattern including year(s) of inflection, magnitude of change, pre- and post-inflection rates of growth or recovery. In addition, it contains routines for converting a flat map of disturbance agents to time-series disturbance maps and a graphical routine displaying the fitted trajectory of Landsat imagery.

Install

Health

CRAN checks
13OK
Slowest check: 5.6 min · r-oldrel-windows-x86_64
Code health
None
Tests · ratio 0.00
not tracked
Coverage
100%
Documentation · exports
2
Dependencies · direct
Check history
  • OK2026-08-05
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • NOTE2026-08-01
    12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-03-10
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo
Examples that run
33%
Documented parameters
99%
Return-value docs
100%
References docs
33%

Downloads

2.3K
CRAN downloads in the past year
Rank #19,341 · ~6/day · ~190/mo
Daily download trend is not available in this view yet.
12730 days
56690 days
2.3K1 year
Compare downloads with other packages →
Also on97 r2u

Dependencies

Declared dependencies
2 external dependencies (excludes base and recommended)
Depends (3)
R >= 3.0.2coneprojraster
Imports (0)
none
LinkingTo (0)
none
Suggests (5)
statsMASSgraphicsgrDevicesutils
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (4)
Maintainer (1)
Author, Maintainer
Authors (4)
Author, Maintainer
Author · added in 1.5
Author · added in 1.5
Listed in earlier versions (2)
no longer listed · 1.0 to 1.4
no longer listed · 1.0 to 1.4
Package Timeline

8 releases. Pick two to compare their code metrics. R releases are shown for context.

  • R
    R 4.6.0 released · 2026-04-24
  • R
    R 4.5.0 released · 2025-04-11
  • R
    R 4.4.0 released · 2024-04-24
  • 1.7Latest
    2023-08-19 · current release · diff ↗
  • 1.6
    2023-08-08 · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • 1.5
    2022-08-15 · diff ↗
  • R
    R 4.2.0 released · 2022-04-22
  • R
    R 4.1.0 released · 2021-05-18
  • R
    R 4.0.0 released · 2020-04-24
  • 1.4
    2020-03-27 · diff ↗
  • unarchivedReturned to CRAN
    2020-03-27
  • archivedRemoved from CRAN
    2020-03-23
    check problems were not corrected in time
  • R
    R 3.6.0 released · 2019-04-26
  • R
    R 3.5.0 released · 2018-04-23
  • R
    R 3.4.0 released · 2017-04-21
Show 6 earlier events
  • 1.3
    2016-10-28 · diff ↗
  • R
    R 3.3.0 released · 2016-05-03
  • 1.2
    2015-12-26 · diff ↗
  • 1.1
    2015-09-06 · diff ↗
  • 1.0
    2015-06-01
  • R
    R 3.2.0 released · 2015-04-16

Package metadata

First published
2015-06-01
Total releases
8 / 11 yrs
License
GPL (>= 2) OSI
Minimum R
≥ 3.0.2
Bundled data
2.7 KB / 2 files
Download size
87 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ShapeSelectForest")
Liao, X., Freeman, E., Meyer, M., & Moisen, G. (2023). ShapeSelectForest: Shape Selection for Landsat Time Series of Forest Dynamics (Version 1.7) [Computer software]. https://doi.org/10.32614/CRAN.package.ShapeSelectForest

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for ShapeSelectForest version 1.7 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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