R/length.R

# Author: Robert J. Hijmans
# contact: [email protected]
# Date : Febrary 2010
# Version 0.0
# Licence GPL v3



setMethod('length', signature(x='VectorLayer'), 
function(x) {
	return(length(unique(x@id[,1])))
}
)

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test documentation built on May 2, 2019, 4:41 p.m.