# Data Handling and Analysis in Macroecology

## Documentation for package ‘letsR’ version 6.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## 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