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\name{writeFormats}
\alias{writeFormats}
\title{File types for writing}
\description{
List supported file types for writing RasterLayer values to disk.
When a function writes a file to disk, the file format is determined by the 'format=' argument if supplied, or else by the file extension (if the extension is known). If other cases the default format is used. The 'factory-fresh' default format is 'raster', but this can be changed using \code{\link{rasterOptions}}.
}
\usage{
writeFormats()
}
\details{
writeFormats returns a matrix of the file formats (the "drivers") that are supported.
Supported formats include:
\tabular{llllr}{
\tab \bold{File type} \tab \bold{Long name} \tab \bold{default extension} \tab \bold{Multiband support} \cr
\tab \code{raster} \tab 'Native' raster package format \tab .grd \tab Yes \cr
\tab \code{ascii} \tab ESRI Ascii \tab .asc \tab No \cr
\tab \code{SAGA} \tab SAGA GIS \tab .sdat \tab No \cr
\tab \code{IDRISI} \tab IDRISI \tab .rst \tab No \cr
\tab \code{CDF} \tab netCDF (requires ncdf4) \tab .nc \tab Yes \cr
\tab \code{GTiff} \tab GeoTiff \tab .tif \tab Yes \cr
\tab \code{ENVI} \tab ENVI .hdr Labelled \tab .envi \tab Yes \cr
\tab \code{EHdr} \tab ESRI .hdr Labelled \tab .bil \tab Yes \cr
\tab \code{HFA} \tab Erdas Imagine Images (.img) \tab .img \tab Yes \cr
}
}
\examples{
writeFormats()
}
\keyword{ spatial }
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