ldfactorial {phangorn} | R Documentation |
double factorial function
ldfactorial(x)
dfactorial(x)
x |
a numeric scalar or vector |
dfactorial(x)
returns the double factorial, that is
x\!\! = 1 * 3 * 5 * \ldots * x
and ldfactorial(x)
is the
natural logarithm of it.
Klaus Schliep klaus.schliep@gmail.com
dfactorial(1:10)