Learn R Programming
⚠️There's a newer version (0.3-5) of this package.Take me there.

simba (version 0.3-4)

A Collection of functions for similarity analysis of vegetation data

Description

Besides functions for the calculation of similarity and multiple plot similarity measures with binary data (for instance presence/absence species data) the package contains some simple wrapper functions for reshaping species lists into matrices and vice versa and some other functions for further processing of similarity data (Mantel-like permutation procedures) as well as some other useful stuff for vegetation analysis.

Copy Link

Version

Install

install.packages('simba')

Monthly Downloads

9

Version

0.3-4

License

GPL (>= 2)

Maintainer

Gerald Jurasinski

Last Published

April 3rd, 2012

Functions in simba (0.3-4)

liste

Convert dist-objects and matrices to database format
dist.tmp

Calculate the distance between the instances or variables of two similar data-sets.
mama

A (convenience) wrapper function to make matrix from a data.frame
bernina

Repeated vegetation records from 7 Alpine summits of the Bernina range.
diffmich

Calculate the difference in parameters of a Michaelis-Menten kinetik fitted to (PAM) data
bcoov

Calculate Bray-Curtis distance for only one variable
simbadocs

Display Package Documentation
com.sim

Compare mean similarity between subsets of data
symbol.size

Little helper function to obtain bubble plots with simple plot and points methods
diffmean

Calculate the difference in Mean between two vectors
rin

Calculate multiple plot resemblance measures
simba-package

Calculate similarity measures for binary data
bb2num

Transform Braun-Blanquet scale data to percentage cover values and vice versa
makead

Create artificial data set (species matrix).
sim.yo

Calculate a binary similarity index you define.
aslopect

Calculate similarity of plots based on slope aspect and inclination
diffslope

Calculate the difference in slope or intercept of two regression lines
abis

Vegetation and environmental data recorded in a Tundra ecosystem in Northern Sweden (Southeast of Abisko).
trudi

Calculate true diversity of any order
sim

Calculate similarities for binary vegetation data
occ.time

Track species occurrence
plot.mrpp

plot an mrpp-object
ads.ternaries

Artificial data-set for studying the mathematical behavior of asymmetric similarity coefficients
CqN

Probabilistic multiple-plot similarity indices following Chao et al. (2008). Strictly preliminary.
hexgrid

Produces the nodes of an equidistant grid.
boxes

Adaption of boxplot.n.
pcol

Permuted Correlation (on strata)
direct

Obtain Direction Classes from Geographic Coordinates
mad

Make binary dummy variables out of a factor vector
simba-internal

Internal functions of the package simba that are usually not called (or only implicitly) by the user
sim.tmp

Calculate binary similarity in time