Learn R Programming

pgirmess (version 2.0.3)

Spatial Analysis and Data Mining for Field Ecologists

Description

Set of tools for reading, writing and transforming spatial and seasonal data, model selection and specific statistical tests for ecologists. It includes functions to interpolate regular positions of points between landmarks, to discretize polylines into regular point positions, link distant observations to points and convert a bounding box in a spatial object. It also provides miscellaneous functions for field ecologists such as spatial statistics and inference on diversity indexes, writing data.frame with Chinese characters.

Copy Link

Version

Install

install.packages('pgirmess')

Monthly Downloads

4,028

Version

2.0.3

License

GPL (>= 2)

Issues

Pull Requests

Stars

Forks

Repository

https://github.com/pgiraudoux/pgirmess

Maintainer

Patrick Giraudoux

Last Published

January 24th, 2024

Functions in pgirmess (2.0.3)

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

Convert a POSIXt date into categories corresponding to a autumn/winter/spring sequence

Computes the edge of a square from its diagonal

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

Computes segment directions.

Draw line segments between pairs of points.

Confidence interval of percentages

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

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

Computes the distance between the centroid and the most distant coordinate of a geographical coordinate set

Computes the total length of a polyline.

Computes distances to the nearest neighbour

Multiple comparison test after Kruskal-Wallis

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

Computes new coordinates given bearings and distances.

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

Kolmogorof-Smirnov goodness of fit test to normal distribution

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

Multiple comparisons after Friedman test

Convert a transect coordinate file with some waypoints separated by NA into a matrix with intermediate coordinates replacing NA.

Model selection according to information theoretic methods

Computes the polygon coordinates of a circle

Computes Shannon's and equitability indices

Computes the distances between each nodes of a polyline.

Computes distances between the top coordinates of segments.

Count the nearest observations to points corresponding to track intervals

Computes the polygon coordinates of a circle sector

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

Provide square polygons or their node coordinates along a segment

Random permutation of a contingency table n row x 2 columns

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

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

Write a data.frame that has Chinese characters

Data on rats training

Jackal and Genet diet in Algeria

Homothetia (size expansion) of a polygon

print method for objects of class 'mc'

Computes the Pianka's index of niche overlap

Bootstrap Pianka's index

Convert MULTILINESTRING and/or LINESTRING into POINT geometry with points at regular distance between nodes

Boostrap Shannon's and equitability indices

Thin a track just keeping the points separated by a user defined minimal distance

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

Write a data.frame

Convert a bounding box into a sf object.