Function interp_rf 

fn interp_rf(
    args: &[RValue],
    named: &[(String, RValue)],
    context: &BuiltinContext<'_>,
) -> Result<RValue, RError>

Random F deviates.

Generates n random values from an F distribution.

@param n number of observations @param df1 numerator degrees of freedom (default 1) @param df2 denominator degrees of freedom (default 1) @return numeric vector of length n