Enum Datum 

pub enum Datum {
    Binary(bool),
    Continuous(f64),
    Categorical(Category),
    Count(u32),
    Missing,
}

Represents the types of data lace can work with

Variants

Binary(bool)

Continuous(f64)

Categorical(Category)

Count(u32)

Missing

Implementations

impl Datum

pub fn to_f64_opt(&self) -> Option<f64>

Unwraps the datum as an f64 if possible. The conversion will coerce from other types if possible.

Example

assert_eq!(Datum::Continuous(1.2).to_f64_opt(), Some(1.2));
assert_eq!(Datum::Categorical(true.into()).to_f64_opt(), Some(1.0));
assert_eq!(Datum::Categorical(8_u8.into()).to_f64_opt(), Some(8.0));
assert_eq!(Datum::Categorical("cat".into()).to_f64_opt(), None);
assert_eq!(Datum::Missing.to_f64_opt(), None);

pub fn to_u8_opt(&self) -> Option<u8>

Unwraps the datum as an u8 if possible. The conversion will coerce from other types if possible.

Example

assert_eq!(Datum::Continuous(1.2).to_u8_opt(), None);
assert_eq!(Datum::Categorical(8_u8.into()).to_u8_opt(), Some(8));
assert_eq!(Datum::Categorical(true.into()).to_u8_opt(), Some(1));
assert_eq!(Datum::Categorical("cat".into()).to_u8_opt(), None);
assert_eq!(Datum::Missing.to_u8_opt(), None);

pub fn is_binary(&self) -> bool

Returns true if the Datum is binary

pub fn is_continuous(&self) -> bool

Returns true if the Datum is continuous

pub fn is_categorical(&self) -> bool

Returns true if the Datum is categorical

pub fn is_count(&self) -> bool

Returns true if the Datum is Count

pub fn is_missing(&self) -> bool

Returns true if the Datum is missing

Trait Implementations

impl Clone for Datum

fn clone(&self) -> Datum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Datum

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Datum

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Datum

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Datum

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Datum

fn partial_cmp(&self, other: &Datum) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Datum

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<Datum> for bool

type Error = DatumConversionError

The type returned in the event of a conversion error.

fn try_from(datum: Datum) -> Result<bool, Self::Error>

Performs the conversion.

impl TryFrom<Datum> for f64

type Error = DatumConversionError

The type returned in the event of a conversion error.

fn try_from(datum: Datum) -> Result<f64, Self::Error>

Performs the conversion.

impl TryFrom<Datum> for u32

type Error = DatumConversionError

The type returned in the event of a conversion error.

fn try_from(datum: Datum) -> Result<u32, Self::Error>

Performs the conversion.

impl TryFrom<Datum> for u8

type Error = DatumConversionError

The type returned in the event of a conversion error.

fn try_from(datum: Datum) -> Result<u8, Self::Error>

Performs the conversion.