Struct OneHotEncoder 

pub struct OneHotEncoder;

One-hot encoder for integer-encoded categorical features.

Transforms integer-encoded columns into binary indicator columns. For example, a column with values [0, 1, 2] becomes three binary columns:

[0] -> [1, 0, 0]
[1] -> [0, 1, 0]
[2] -> [0, 0, 1]

Implementations

impl OneHotEncoder

pub fn new() -> Self

Create a new OneHotEncoder.

pub fn fit(&self, x: &Array2<usize>) -> Result<FittedOneHotEncoder>

Fit the encoder on integer-encoded data.

Learns the number of unique categories per column.

Trait Implementations

impl Clone for OneHotEncoder

fn clone(&self) -> OneHotEncoder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OneHotEncoder

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

Formats the value using the given formatter.

impl Default for OneHotEncoder

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OneHotEncoder

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for OneHotEncoder

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.