Function ln 

pub fn ln<T: Float + Signed, S: Data<Elem = T>, D: Dimension>(
    data: ArrayBase<S, D>,
) -> Result<Array<T, D>, LogCodecError>

Compute $\ln(x)$ over the elements of the input data array.

Errors

Errors with

• LogCodecError::NonPositiveData if any data element is non-positive (negative or zero)
• LogCodecError::NonFiniteData if any data element is non-finite (infinite or NaN)