Struct LogNormal 

pub struct LogNormal { /* private fields */ }

Log Normal Distribution

Example

let mut log_normal = rand_simple::LogNormal::new([1192_u32, 765_u32]);
assert_eq!(format!("{log_normal}"), "LN(Mean, Std^2) = LN(0, 1^2)");
println!("Returns a random number -> {}", log_normal.sample());

// If you want to change the parameters of the random variable
let mean: f64 = -3_f64;
let variance: f64 = 2_f64;
let result: Result<(f64, f64), &str> = log_normal.try_set_params(mean, variance);
assert_eq!(format!("{log_normal}"), "LN(Mean, Std^2) = LN(-3, 2^2)");
println!("Returns a random number -> {}", log_normal.sample());

Implementations

impl LogNormal

pub fn new(seeds: [u32; 2]) -> Self

Constructor

• seeds - Seeds for random number generation. Adjusted on the constructor side to ensure they are not the same.

pub fn sample(&mut self) -> f64

Generate a random number.

pub fn try_set_params( &mut self, mean: f64, std: f64, ) -> Result<(f64, f64), &'static str>

Modify the parameters of the random variable.

• mean - Mean
• std - Standard deviation

Trait Implementations

impl Display for LogNormal

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formatter for displaying in functions like println! macro

• Mean
• Standard deviation