R中三种检验正态分布的方式

一、画出密度函数与正态分布密度图比较： library(MASS) mu<- c(0,0,0) Sigma<- matrix(c(1,0.5,0.25,0.5,1,0.5, 0.25,0.5,1),3,3) M<- mvrnorm(1000, mu, Sigma) d<- density(M[,2]) plot(d$x,dnorm(d$x),col=2,type = "n") lines(d$x,

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