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\name{rasterToPoints}
\alias{rasterToPoints}
\title{ Raster to points conversion}
\description{
Raster to point conversion. Cells with NA are not converted. A function can be used to select a subset of the raster cells (by their values).
}
\usage{
rasterToPoints(x, fun=NULL, spatial=FALSE, ...)
}
\arguments{
\item{x}{A Raster* object }
\item{fun}{Function to select a subset of raster values}
\item{spatial}{Logical. If \code{TRUE}, the function returns a SpatialPointsDataFrame object }
\item{...}{Additional arguments. Currently only \code{progress} to specify a progress bar. "text", "window", or "" (the default, no progress bar)}
}
\details{
\code{fun} should be a simple function returning a logical value.
E.g.: \code{fun=function(x){x==1}} or \code{fun=function(x){x>3}}
}
\value{
A matrix with three columns: x, y, and v (value), or a SpatialPointsDataFrame object
}
\examples{
r <- raster(nrow=18, ncol=36)
values(r) <- runif(ncell(r)) * 10
r[r>8] <- NA
p <- rasterToPoints(r)
p <- rasterToPoints(r, fun=function(x){x>6})
#plot(r)
#points(p)
}
\keyword{ spatial }
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