R语言举例 > x = c(29.6, 28.2, 19.6, 13.7, 13.0, 7.8, 3.4, 2.0, 1.9, 1.0, 0.7, 0.4, 0.4, 0.3, 0.3, 0.3, 0.3, 0.3, 0.2, 0.2, 0.2, 0.1, 0.1, 0.1, 0.1, 0.1) > a = hist(x,breaks=seq(-3,3,by=0.5)) > lines( c(min(a$breaks), a$mids, max(a$breaks)), c(0,a$counts,0), type=‘l‘ )
原文：http://www.cnblogs.com/gispathfinder/p/5770103.html