lets.addpoly: Add polygon coverage to a PresenceAbscence object

In letsR: Data Handling and Analysis in Macroecology

Add polygon coverage to a PresenceAbscence object

Description

Add polygon coverage within cells of a PresenceAbsence object.

Usage

lets.addpoly(x, y, z, onlyvar = FALSE, count = FALSE)

Arguments

x	A PresenceAbsence object.
y	Polygon of interest.
z	A character indicating the column name of the polygon containing the attributes to be used.
onlyvar	If TRUE only the matrix object will be returned.
count	Logical, if TRUE a progress bar indicating the processing progress will be shown.

Value

The result is a presence-absence matrix of species with the polygons' attributes used added as columns at the right-end of the matrix. The Values represent the percentage of the cell covered by the polygon attribute used.

Author(s)

Bruno Vilela

See Also

lets.presab.birds

lets.presab

lets.addvar

Examples

## Not run: 
data(PAM)  # Phyllomedusa presence-absence matrix
data(wrld_simpl)  # World map
Brazil <- wrld_simpl[wrld_simpl$NAME == "Brazil", ]  # Brazil (polygon)

# Check where is the variable name 
# (in this case it is in "NAME" which will be my z value)
names(Brazil)

PAM_pol <- lets.addpoly(PAM, Brazil, "NAME", onlyvar = TRUE)

## End(Not run)

letsR documentation built on Nov. 23, 2023, 9:07 a.m.