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pgirmess (version 1.2.8)

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

1.2.8

License

GPL version 2 or newer

Maintainer

Patrick Giraudoux

Last Published

January 24th, 2024

Functions in pgirmess (1.2.8)

difshannonbio

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

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

Gives a correlation matrix and the probability of Ho for each correlation
pclig

Compute the percentage of each cell of a matrix by row
ks.gof

Kolmogorof-Smirnov goodness of fit test to normal distribution
trans2seg

Convert a transect coordinate file into a matrix with segment coordinates.
trans2pix

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

Write a data.frame
pave

Provide square polygons or their node coordinates along a segment
Segments

Draw line segments between pairs of points.
print.mc

print method for objects of class 'mc'
write.kernel2points

Write a text file of X,Y coordinates and Z value from the output of 'kernel2d' (library splancs)
deg2dec

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

Computes Moran's or Geary's coefficients on distance classes
plot.variogenv

Plots empirical variogram and its envelop
pairsrp

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

Select objects in the parent frame and remove them.
TukeyHSDs

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

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

Computes the distances between each nodes of a polyline.
selMod

Model selection according to information theoretic methods
permcont

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

Multiple comparison test after Kruskal-Wallis
write.arcGrid

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

Bootstrap Pianka's index
CI

Confidence interval of percentages
polycirc

Computes the polygon coordinates of a circle
tabcont2categ

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

Jackal and Genet diet in Algeria
shannon

Computes Shannon's and equitability indices from a probability vector (sum = 1)
shannonbio

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

Expected values of a contingency table under the null hypothesis
siegelp179

Data on rats training
distTot

Computes the total length of a polyline.
variogenv

Envelops for empirical variograms based on permutations
friedmanmc

Multiple comparisons after Friedman test
write.cl2grass

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

Computes the distances between the top coordinates of segments.
shannonbioboot

Boostrap Shannon's and equitability indices
expandpoly

Homothetia (size expansion) of a polygon
piankabio

Computes the Pianka's index of niche overlap
distPolylines

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

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

Gives an index vector of the class category of each value of a numerical vector
write.pts2grass

Convert a matrix of points coordinates (x,y) into an ascii GRASS vector file (lines).
diag2edge

Computes the edge of a square from its diagonal