Package: twinspan 0.9-7

twinspan: Two-Way Indicator Species Analysis

Classification of biological communities based on splitting first axis of Correspondence Analysis for the current subset of the data, and finding species that best indicate the splits. The method is particularly popular in vegetation science.

Authors:Jari Oksanen [cre, aut], Mark O. Hill [aut]

twinspan_0.9-7.tar.gz
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twinspan_0.9-7.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION
card.svg |card.png
twinspan/json (API)

# Install 'twinspan' in R:

install.packages('twinspan', repos = c('https://jarioksa.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/jarioksa/twinspan/issues

Datasets:

ahti - Vegetation of Lichen-rich Pine Forests in Finland

On CRAN:

4.18 score 8 stars 19 scripts 13 exports 8 dependencies

Last updated from:c255ea130b. Checks:13 OK. Indexed: yes.

Target	Result	Time
linux-devel-arm64	OK	133
linux-devel-x86_64	OK	132
source / vignettes	OK	159
linux-release-arm64	OK	122
linux-release-x86_64	OK	123
macos-release-arm64	OK	126
macos-release-x86_64	OK	198
macos-oldrel-arm64	OK	166
macos-oldrel-x86_64	OK	283
windows-devel	OK	97
windows-release	OK	96
windows-oldrel	OK	101
wasm-release	OK	94

Exports:cuth eigenvals misclassified totalchi twin2mat twin2specstack twin2stack twingroup twinid twinsform twinspan twintable twintotalchi

Dependencies:cluster lattice MASS Matrix mgcv nlme permute vegan

ahti names

Full Names of Species in the ahti Data File | References

Rendered fromahtinames.Rmdusingknitr::knitr

Last update: 2019-10-25
Started: 2019-10-24

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Vegetation of Lichen-rich Pine Forests in Finland	ahti
Extract Species or Quadrat Dendrograms	as.dendrogram.twinspan
Extract twinspan Grouping as Hierarchical Cluster Tree	as.hclust.twinspan
Return twinspan Classification at Given Level	cut.twinspan cuth twingroup
Eigenvalues of twinspan Divisions	eigenvals eigenvals.twinspan
Image of Quadrat and Species Classification and Average Abundances in Cells	image.twinspan
Report Misclassified Quadrats	misclassified
Plot Classification Tree	plot.twinspan
Predict Class Membership of Quadrats	predict.twinspan
Summary of twinspan Classification	summary.twinspan
Total Scaled Chi-square of All Divisions and Groups	totalchi twintotalchi
Extract Transformed Input Data from twinspan Result	twin2mat twin2specstack twin2stack
Get Twinspan Classs Identiers for Clustering Object	cut.twinid twinid
Transform Data for Correspondence Analysis like twinspan	twinsform
Two-Way Indicator Species Analysis	twinspan
Community Table Ordered by Twinspan Classification	twintable