Data Handling and Analysis in Macroecology

---

Documentation for package ‘letsR’ version 6.0

• DESCRIPTION file
• User guides, package vignettes and other documentation
• Package README

Help Pages

letsR-package	Tools for Data Handling and Analysis in Macroecology.
IUCN	IUCN evaluation for frogs of the genus Phyllomedusa
lets.addpoly	Add polygon coverage to a PresenceAbscence object
lets.addvar	Add variables (in raster format) to a PresenceAbscence object
lets.attrcells	Descriptors of position, centrality, and isolation in attribute space
lets.attrpam	Attribute-space Presence–Absence Matrix (attrPAM)
lets.classvar	Frequency distribution of a variable within a species' range
lets.correl	Compute correlogram based on the Moran's I index
lets.distmat	Compute a geographic distance matrix
lets.envcells	Environmental descriptors for Presence–Absence in environmental space
lets.envpam	Create a presence–absence matrix in environmental space
lets.field	Create species' values based on the species co-occurrence within focal ranges
lets.gridirizer	Fits a grid into a PresenceAbsence object
lets.iucncont	Transform IUCN RedList conservation status to continuous values
lets.load	Load a PresenceAbsence object
lets.maplizer	Create a matrix summarizing species' attributes within cells of a PresenceAbsence object
lets.maplizer.attr	Map species-level attributes over the attribute-space grid
lets.maplizer.env	Map species attributes in both environmental and geographic spaces
lets.midpoint	Compute the midpoint of species' geographic ranges
lets.overlap	Compute pairwise species' geographic overlaps
lets.pamcrop	Crop a PresenceAbsence object based on an input shapefile
lets.plot.attrcells	Map AttrPAM descriptor layers
lets.plot.attrpam	Plot attrPAM results
lets.plot.envcells	Map envPAM descriptors
lets.plot.envpam	Plot species richness in environmental and geographical space
lets.presab	Create a presence-absence matrix of species' geographic ranges within a grid
lets.presab.birds	Create a presence-absence matrix of species' geographic ranges within a grid for the Birdlife spatial data
lets.presab.grid	Create a presence-absence matrix of species' geographic ranges within a user's grid shapefile (beta version)
lets.presab.grid.points	Create a presence-absence matrix based on species' point occurrences within a user's grid shapefile (beta version)
lets.presab.points	Create a presence-absence matrix based on species' point occurrences
lets.rangesize	Compute species' geographic range sizes
lets.save	Save a PresenceAbsence object
lets.shFilter	Filter species' shapefiles based on its presence, origin, and season
lets.subsetPAM	Subset a PresenceAbsence object based on species names
lets.summarizer	Summarize variable(s) values in a presence-absence matrix within species' ranges
lets.summaryze.cells	Aggregate cell-wise metrics across occupied cells per species
lets.transf	Transform values of a vector
letsR	Tools for Data Handling and Analysis in Macroecology.
PAM	PresenceAbsence object for frogs of the genus Phyllomedusa
Phyllomedusa	Phyllomedusa
plot.PresenceAbsence	Plot an object of class PresenceAbsence
prec	Annual Precipitation raster for the world.
PresenceAbsence	PresenceAbsence Class
PresenceAbsence-class	PresenceAbsence Class
print.PresenceAbsence	Print for object of class PresenceAbsence
print.summary.PresenceAbsence	Print summary for object of class PresenceAbsence
summary.PresenceAbsence	Summary for object of class PresenceAbsence
temp	Mean temperature raster for the world.
wrld_simpl	Simplified world country polygons