plotNormalInvGamma: Plot the bivariate PDF of the Normal Inverse Gamma...
In FrankPortman/bayesAB: Fast Bayesian Methods for AB Testing

Description Usage Arguments Value Note Examples

Plot the bivariate PDF of the Normal Inverse Gamma Distribution.

1	plotNormalInvGamma(mu, lambda, alpha, beta)

`mu`	μ parameter of the Normal Inverse Gamma distribution.
`lambda`	λ parameter of the Normal Inverse Gamma distribution.
`alpha`	α parameter of the Normal Inverse Gamma distribution.
`beta`	β parameter of the Normal Inverse Gamma distribution.

The PDF of NormalInverseGamma(mu, lambda, alpha, beta)

This is a bivariate distribution (commonly used to model mean and variance of the normal distribution) and returns a 2d contour plot instead of a typical one dimensional PDF. You may want to experiment with both this distribution and the plotNormal and plotInvGamma outputs separately before arriving at a suitable set of priors for the Normal and LogNormal bayesTest.