area: Return a area from polygon xy coordinates

View source: R/calculation.R

areaR Documentation

Return a area from polygon xy coordinates

Description

Return a area from polygon xy coordinates

Usage

area(xy)

Arguments

xy

a atrix or data frame of xy coordinates

Value

a vector of polygon area

Examples

xy<-data.frame(x=c(0,1,2,1),y=c(1,2,1,0))
plot(xy,type="b") ; polygon(xy)
area(xy)




TreeRingShape documentation built on April 4, 2025, 5:10 a.m.