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\name{compareCRS}
\alias{compareCRS}
\title{ Partially compare two CRS objects }
\description{
Compare CRS objects
}
\usage{
compareCRS(x, y, unknown=FALSE, verbatim=FALSE, verbose=FALSE)
}
\arguments{
\item{x}{CRS object, or object from which it can be extracted with \code{\link{projection}}, or PROJ.4 format character string}
\item{y}{same as \code{x}}
\item{unknown}{logical. Return \code{TRUE} if \code{x} or \code{y} is \code{TRUE}}
\item{verbatim}{logical. If \code{TRUE} compare \code{x} and \code{y}, verbatim (not partially)}
\item{verbose}{logical. If \code{TRUE}, messages about the comparison may be printed}
}
\value{
logical
}
\seealso{\code{sp::identicalCRS}, \code{\link{crs} }}
\examples{
compareCRS("+proj=lcc +lat_1=48 +lat_2=33 +lon_0=-100 +ellps=WGS84",
"+proj=longlat +datum=WGS84")
compareCRS("+proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0",
"+proj=longlat +datum=WGS84")
compareCRS("+proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0",
"+proj=longlat +datum=WGS84", verbatim=TRUE)
compareCRS("+proj=longlat +datum=WGS84", NA)
compareCRS("+proj=longlat +datum=WGS84", NA, unknown=TRUE)
}
\keyword{ spatial }
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