MASS:：mvrnorm:是参数的对角线；西格玛；方差还是标准差？
参数的对角线元素是方差还是标准偏差MASS:：mvrnorm:是参数的对角线；西格玛；方差还是标准差？,r,statistics,R,Statistics,参数的对角线元素是方差还是标准偏差 library(MASS) mvrnorm(n, mu, Sigma) 所以对角线元素是方差。看 Sigma: a positive-definite symmetric matrix specifying the covariance matrix of the variables.
library(MASS)
mvrnorm(n, mu, Sigma)
Sigma: a positive-definite symmetric matrix specifying the
covariance matrix of the variables.