Package index • vegclust

Vegetation cluster analysis

Functions for unsupervised and semi-supervised classification of vegetation

wetland: Wetland vegetation data set Vegetation of the Adelaide river alluvial plain (Australia). This data set was published by Bowman & Wilson (1987) and used in Dale (1988) to compare fuzzy classification approaches.

as.vegclust(): Turns into vegclust objects

as.memb(): Turns into membership matrix

conformveg(): Conform two community data tables

vegclass(): Classifies vegetation communities

vegclust() vegclustdist(): Vegetation clustering methods

vegclust2kmeans(): Reshapes as kmeans object

vegclustIndex(): Fuzzy evaluation statistics

clustcentroid() clustmedoid(): Cluster centers of a classification

clustconst() summary(<clustconst>): Constancy table of a classification

clustvar(): Cluster variance

concordance(): Concordance between two classifications

crossmemb(): Cross-table of two fuzzy classifications

incr.vegclust(): Noise clustering with increasing number of clusters

hier.vegclust() random.vegclust() hier.vegclustdist() random.vegclustdist(): Clustering with several number of clusters

defuzzify(): Defuzzifies a fuzzy partition

interclustdist(): Distance between pairs of cluster centroids

hcr(): Heterogeneity-constrained random resampling (HCR)

relate.levels(): Relates two clustering level results

plot(<mvegclust>): Plots clustering results

Structural-compositional dissimilarity

Functions to assess commmunity dissimilarity in terms of composition and structure

vegdiststruct(): Structural and compositional dissimilarity

CAP() CAP2matrix() CAPcenters() CAPquantile(): Cumulative abundance profile (CAP)

CAS() CAS2matrix() CAScenters() CASmargin() CASquantile(): Cumulative abundance surface (CAS)

stratifyvegdata() as.stratifiedvegdata(): Reshapes community data from individual into stratified form

treedata: Synthetic vegetation data set with tree data

plot(<CAP>) plot(<stratifiedvegdata>): Draws cummulative abundance profiles

plot(<CAS>): Draws a cummulative abundance surface

medreg: Regeneration of Mediterranean vegetation data set