# ldfactorial

From phangorn v2.5.5
by Klaus Schliep

##### Arithmetic Operators

double factorial function

- Keywords
- classif

##### Usage

`ldfactorial(x)`dfactorial(x)

##### Arguments

- x
a numeric scalar or vector

##### Value

`dfactorial(x)`

returns the double factorial, that is
\(x\!\! = 1 * 3 * 5 * \ldots * x \) and `ldfactorial(x)`

is the
natural logarithm of it.

##### See Also

##### Examples

```
# NOT RUN {
dfactorial(1:10)
# }
```

*Documentation reproduced from package phangorn, version 2.5.5, License: GPL (>= 2)*

### Community examples

Looks like there are no examples yet.