Steboss89

avg_x = np.mean(X) 
Xt = [] 
for i, val in enumerate(X, 0):
    if i==0:
        Xt.append(val - avg_x)
    else:
        Xt.append(Xt[i-1] + (val - avg_x))

Steboss89

reader.lines().enumerate()
            .map(|(numb, line)| line.expect(&format!("Impossible to read line number {}", numb)))
            .map(|row| read_single_line(row))
            .collect()

Steboss89

reader.lines().enumerate()
            .map(|(numb, line)| line.expect(&format!("Impossible to read line number {}", numb)))
            .map(|row| read_single_line(row))
            .collect()

Steboss89

pub fn new(v: Vec<&str>) -> HousingDataset {
        // note we have declared a new vector of &strings, remember borrowship, which will be a struct HousingDatset
        // as input we are receiving a string from the csv file. 
        // we are going to decode this as a f64 vector using the unwrap function 
        let unwrapped_text: Vec<f64> = v.iter().map(|r| r.parse().unwrap()).collect(); 

Steboss89

[lib]
name = "read_csv"
path = "src/reader.rs"

Steboss89

struct Person {
    name: String, // NB there's a comma here 
    surname: String, 
    age: u32
}


impl Person{
    // method to get the person 
    fn who_are_you(&self){

Steboss89

struct Person {
    name: String, // NB there's a comma here 
    surname: String, 
    age: u32
}

// notice now we are defining impl METHOD for TYPE
impl WhoAreYou for Person {
  fn who_are_you(&self) -> String{
      return format!("Person name is {} surname {} and age {}", self.name, self.surname, self.age);

Steboss89

struct Person {
    name: String, // NB there's a comma here 
    surname: String, 
    age: u32
}

// Define a trait with the functionalities we want to use with a Person
trait PersonSpec {
    fn compute_year_of_birth(&self) -> u32; 
}

Steboss89

fn main() {
    let myself = Person{ name: "Stefano".to_string(),
                         surname: "Bosisio".to_string(),
                         age: 32 // not yet :P
                        };
    
    println!("I was born in the {}", myself.compute_year_of_birth());
}

Steboss89

[package]
name = "rust-regression"
version = "0.1.0"
authors = ["Steboss89"]
edition = "2018"


[dependencies]
# to get the rusty-machine simply go to crates.io and copy the version you want
rusty-machine = "0.5.4"