Last data update: 2014.03.03
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R: Create a matrix summarizing species' attributes within cells...
lets.maplizer | R Documentation |
Create a matrix summarizing species' attributes within
cells of a PresenceAbsence object
Description
Summarize species atributes per cell in a presence-absence matrix.
Usage
lets.maplizer(x, y, z, func = mean, ras = FALSE)
Arguments
x |
A PresenceAbsence object.
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y |
Species attribute to be considered. It must be a numeric attribute.
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z |
Species names in the same order as the attributes and exactly the
same as named in the PresenceAbsence object.
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func |
A function to summarize the species' atribute in each cell (the function must return only one value).
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ras |
If TRUE the raster object will be returned
together with the matrix.
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Value
The result can be both a matrix or a list cointaining
the follow objects:
Matrix: a matrix object with the cells' geographic
coordinates and the summarized species' attributes within them.
Raster: The summarized species'attributed maped in a
raster object.
Author(s)
Bruno Vilela
See Also
lets.presab
lets.presab.birds
Examples
## Not run:
data(PAM)
data(IUCN)
trait <- IUCN$Description_Year
resu <- lets.maplizer(PAM, trait, PAM$S, ras = TRUE)
head(resu$Matrix)
plot(resu$Raster, xlab = "Longitude", ylab = "Latitude",
main = "Mean description year per site") ; map(add = TRUE)
## End(Not run)
Results
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