View source: R/lets_gridirizer.R
lets.gridirizer | R Documentation |
This function creates a grid in shapefile format and adds its cells' IDs to the presence-absence matrix. The function was created to facilitate the use of the PresenceAbsence object for the ones who prefer to work with a grid in shapefile format.
lets.gridirizer(x)
x |
A |
The result is a list of two objects. The first is a grid in shapefile format; the second is a presence-absence matrix with an aditional column called SP_ID (shapefile cell identifier).
Bruno Vilela
plot.PresenceAbsence
lets.presab.birds
## Not run:
data(PAM)
PAM.grid <- lets.gridirizer(PAM)
names(PAM.grid)
# Grid in polygon format (can be saved in shapefile)
PAM.grid$Grid
# Presence-absence matrix (beggining only)
head(PAM.grid$Presence[, 1:5])
## End(Not run)
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