急求!怎样用不同的颜色分别画出80%,90%,95%,99%的置信椭圆图呢?有大神知道吗,望告知,不胜感激!
代码如下:
alpha3<-c(0.02693109,0.12935154,0.07462433,0.21209263,0.20834569,0.04058554,0.04127994,0.22428299,0.48687431,0.29805414,0.05692135,0.09077933,0.15464088,0.16871449,0.05950752,0.10845024,0.09135121,0.00173452,0.20352557,0.30710519)
alpha2<-c(0.17286444,1.07479356,0.54006839,2.17113591,2.11277102,0.26959942,0.27469126,2.36737048,9.80551705,3.78362173,0.39397837,0.6843076,1.36963563,1.54830014,0.4145694,0.8548005,0.6896129,0.01045233,2.03900855,3.987274)
library(VGAM)
library(car)
dataEllipse(alpha2,alpha3,levels=c(0.8,0.9,0.95,0.99),ellipse.label=c(0.8,0.9,0.95,0.99),xlim=c(-6,10),ylim=c(-0.3,0.6),grid=F)