Bistudentt {VGAM} | R Documentation |
Density for the bivariate Student-t distribution distribution.
dbistudentt(x1, x2, df, rho = 0, log = FALSE)
x1, x2 |
vector of quantiles. |
df, rho |
vector of degrees of freedom and correlation parameter.
For |
log |
Logical.
If |
One can think of this function as an extension of
dt
to two dimensions.
See bistudentt
for more information.
dbistudentt
gives the density.
Schepsmeier, U. and Stober, J. (2013) Derivatives and Fisher information of bivariate copulas. Statistical Papers.
bistudentt
,
dt
.
## 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)