lndIChisq {bayesm} | R Documentation |
lndIChisq
computes the log of an Inverted Chi-Squared Density.
lndIChisq(nu, ssq, X)
nu |
d.f. parameter |
ssq |
scale parameter |
X |
ordinate for density evaluation (this must be a matrix) |
Z = nu*ssq / \chi^2_{nu}
with Z
\sim
Inverted Chi-Squared.
lndIChisq
computes the complete log-density, including normalizing constants.
Log density value
This routine is a utility routine that does not check the input arguments for proper dimensions and type.
Peter Rossi, Anderson School, UCLA, perossichi@gmail.com.
For further discussion, see Chapter 2, Bayesian Statistics and Marketing by Rossi, Allenby, and McCulloch.
lndIChisq(3, 1, matrix(2))