dbvt: The Bivariate t distribution

In nclbayes: Functions, Demos and Examples of Bayesian Analysis and Basic MCMC

Description

Density (and its contours) of the bivariate t distribution with a degrees of freedom, mean vector b and covariance matrix c.

Usage

dbvt(x, y, a, b, c)

tcontour(x, y, a, b, c, p = NULL, ...)

Arguments

x	vector of quantities.
y	vector of quantities.
a	degrees of freedom. Must be strictly positive.
b	mean vector (2x1).
c	covariance matrix. Must be a positive definite 2x2 matrix.
p	probability.
...	arguments to be passed to the plot function when plotting contours.

Examples

dbvt(1, 2, 10, c(1,2), diag(1,2))
beta1=seq(-3,3,len=100)
beta2=seq(-3,3,len=100)
tcontour(beta1,beta2,10,c(0,0),matrix(c(1,0.8,0.8,1),ncol=2))

nclbayes documentation built on May 2, 2019, 5:53 p.m.