lets.maplizer: Create a matrix summarizing species' attributes within cells...
In letsR: Data Handling and Analysis in Macroecology

Description Usage Arguments Value Author(s) See Also Examples

Summarize species atributes per cell in a presence-absence matrix.

1	lets.maplizer(x, y, z, func = mean, ras = FALSE)

`x`	A `PresenceAbsence` object.
`y`	Species attribute to be considered. It must be a numeric attribute.
`z`	Species names in the same order as the attributes and exactly the same as named in the `PresenceAbsence` object.
`func`	A function to summarize the species' atribute in each cell (the function must return only one value).
`ras`	If `TRUE` the raster object will be returned together with the matrix.

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.

Bruno Vilela

lets.presab

lets.presab.birds

## 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)