bistudenttUC: Bivariate Student-t Distribution Density Function

In VGAM: Vector Generalized Linear and Additive Models

Bivariate Student-t Distribution Density Function

Description

Density for the bivariate Student-t distribution.

Usage

dbistudentt(x1, x2, df, rho = 0, log = FALSE)

Arguments

x1, x2	vector of quantiles.
df, rho	vector of degrees of freedom and correlation parameter. For df, a value Inf is currently not working.
log	Logical. If log = TRUE then the logarithm of the density is returned.

Details

One can think of this function as an extension of dt to two dimensions. See bistudentt for more information.

Value

dbistudentt gives the density.

See Also

bistudentt, dt.

Examples

## Not run:  N <- 101; x <- seq(-4, 4, len = N); Rho <- 0.7
mydf <- 10; ox <- expand.grid(x, x)
zedd <- dbistudentt(ox[, 1], ox[, 2], df = mydf,
                    rho = Rho, log = TRUE)
contour(x, x, matrix(zedd, N, N), col = "blue", labcex = 1.5)

## End(Not run)

VGAM documentation built on Sept. 18, 2024, 9:09 a.m.