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pgirmess (version 1.3.8)

Data analysis in ecology

Description

Miscellaneous functions for analysis and display of ecological and spatial data

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Version

Install

install.packages('pgirmess')

Monthly Downloads

2,302

Version

1.3.8

License

GPL (>= 2)

Maintainer

Patrick Giraudoux

Last Published

January 24th, 2024

Functions in pgirmess (1.3.8)

expandpoly

Homothetia (size expansion) of a polygon
distTot

Computes the total length of a polyline.
correlog

Computes Moran's or Geary's coefficients on distance classes
Segments

Draw line segments between pairs of points.
plot.variogenv

Plots empirical variogram and its envelop
PermTest

Permutation test for lm, lme and glm (binomial and Poisson) objects
postxt

Computes coordinates defined from their relative position on x and y in the plotting region
deg2dec

Convert degree minutes coordinates into decimal degrees (1.60 = 2)
classnum

Gives an index vector of the class category of each value of a numerical vector
preybiom

Jackal and Genet diet in Algeria
shannonbioboot

Boostrap Shannon's and equitability indices
print.mc

print method for objects of class 'mc'
permcont

Random permutation of a contingency table n row x 2 columns
rmls

Select objects in the parent frame and remove them.
tabcont2categ

Convert a contingency table (data.frame) into a presence/absence table of categories
dirProj

Computes new coordinates given bearings and distances.
write.arcGrid

Writes an ArcInfo ASCII grid from a matrix or data frame, with x, y, z values.
pairsrp

Produces a matrix of scatterplot, regression coefficient and p(Ho)
cormat

Gives a correlation matrix and the probability of Ho for each correlation
write.kernel2points

Write a text file of X,Y coordinates and Z value from the output of 'kernel2d' (library splancs)
distTotshp

Computes the total length of the lines of an output of 'read.shape' from maptools.
val4symb

Centres a numerical vector on a parameter position and provides absolute values and colors according to negative and positive values
polycirc2

Computes the polygon coordinates of a circle sector
polycirc

Computes the polygon coordinates of a circle
shannonbio

Computes Shannon's and equitability indices from a data frame of dietary analysis (n, biomass,...)
distNode

Computes the distances between each nodes of a polyline.
distPolylines

Computes the length of each lines of an output (polylines) of 'read.shape' from maptools.
write.cl2grass

Convert the output of contourLines into a ascii GRASS vector file (lines).
friedmanmc

Multiple comparisons after Friedman test
trans2pix

Convert a transect coordinate file with some landmarks into a matrix with intermediate coordinates.
CI

Confidence interval of percentages
distSeg

Computes distances between the top coordinates of segments.
difshannonbio

Empirical confidence interval of the bootstrap of the difference between two Shannon indices
siegelp179

Data on rats training
shannon

Computes Shannon's and equitability indices
kruskalmc

Multiple comparison test after Kruskal-Wallis
ks.gof

Kolmogorof-Smirnov goodness of fit test to normal distribution
diag2edge

Computes the edge of a square from its diagonal
TukeyHSDs

Simplify the list of a TukeyHSD object keeping the significant differences only.
write.delim

Write a data.frame
piankabio

Computes the Pianka's index of niche overlap
pclig

Compute the percentage of each cell of a matrix or data.frame by row
trans2seg

Convert a transect coordinate file into a matrix with segment coordinates.
write.pts2grass

Convert a matrix of points coordinates (x,y) into an ascii GRASS vector file (lines).
pave

Provide square polygons or their node coordinates along a segment
valat

Expected values of a contingency table under the null hypothesis
valchisq

Values of the partial chi-square in each cell of a contingency table
dirSeg

Computes segment directions.
piankabioboot

Bootstrap Pianka's index
selMod

Model selection according to information theoretic methods
variogenv

Envelops for empirical variograms based on permutations