The code below shows a sample of point locations of Brent Goose on mudflats. The black points are the subspecies Dark-bellied Brent Goose, and white points the subspecies Light-bellied Brent Goose:
geese <- data.frame(lightLat=c(55.66735, 55.66735, 55.67341, 55.66735, 55.66735), lightLong=c(-1.833845,-1.833844,-1.833843,-1.833841,-1.833840), darkLat=c(55.66735,55.66735,55.66735,55.66735,55.61628), darkLong=c(-1.833851,-1.833851,-1.833848,-1.833850,-1.833849)) library(ggplot2) ggplot(geese, aes(lightLong, lightLat)) + geom_point(size=5, color='white') + geom_point(data=data.frame(geese), aes(darkLong, darkLat), color='black', size=5) + xlab('long') + ylab('lat') The two subspecies segregate, as can be seen. I¹m looking for a statistical measure of segregation? Can anyone suggest a suitable measure? Thanks Ross [[alternative HTML version deleted]]
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