zeta {dsfa} | R Documentation |
Evaluates the zeta function, i.e. log(2*pnorm(x))
.
zeta(x, deriv = 0)
x |
numeric vector of quantiles. Missing values (NAs) and Inf are allowed. |
deriv |
derivative of order |
The zeta function is defined as log\{ 2 \Phi(x)\}
. The function is a clone of zeta()
.
Evaluates the zeta function. If the derivatives are calculated these are provided as the attributes gradient
, hessian
, l3
and l4
.
Abramowitz M, Stegun IA (1964). “Handbook of mathematical functions dover publications inc.” New York, NY.
Azzalini A (2014). “with the collaboration of A. Capitanio.” The Skew-normal and Related Families.
zeta(1,1)