swh:1:snp:33a53053e50f7abe7d281cc0c803be827debf4a3
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Tip revision: cc0e158f1e0ce7dce51ae4c6b8e63147c5df3986 authored by Edzer J. Pebesma on 19 October 2004, 03:25:34 UTC
version 0.9-16
Tip revision: cc0e158
mapasp.R
mapasp <- function(data, x = data$x, y = data$y) {
	# calculates aspect ratio for levelplot of geographic data,
	# using proportial units (compare eqscplot)
	diff(range(y))/diff(range(x))
}
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