Enum DType 

pub enum DType {
    Null,
    Bool,
    BoolNullable,
    Int64,
    Int64Nullable,
    Float64,
    Utf8,
    Categorical,
    Timedelta64,
    Datetime64,
    Period,
    Interval,
    Sparse,
}

Variants

Null

Bool

BoolNullable

Nullable boolean extension dtype. Matches pandas BooleanDtype().

Int64

Int64Nullable

Nullable Int64 extension dtype. Matches pandas Int64Dtype() / pd.NA.

Float64

Utf8

Categorical

Timedelta64

Datetime64

Nanosecond-precision datetime since Unix epoch. Matches pandas datetime64[ns].

Period

Period ordinal. Matches pandas period[freq]. Stores ordinal + frequency code.

Interval

Numeric interval value. Matches pandas interval[float64].

Sparse

Implementations

impl DType

pub const fn is_numeric(&self) -> bool

Returns true if the dtype is numeric (integer or floating point).

pub const fn is_integer(&self) -> bool

Returns true if the dtype is an integer type.

pub const fn is_floating(&self) -> bool

Returns true if the dtype is a floating point type.

pub const fn is_bool(&self) -> bool

Returns true if the dtype is boolean.

pub const fn is_object(&self) -> bool

Returns true if the dtype is object/string type.

pub const fn is_datetime(&self) -> bool

Returns true if the dtype is datetime.

pub const fn is_timedelta(&self) -> bool

Returns true if the dtype is timedelta.

pub const fn is_categorical(&self) -> bool

Returns true if the dtype is categorical.

pub const fn is_sparse(&self) -> bool

Returns true if the dtype is sparse.

pub const fn is_period(&self) -> bool

Returns true if the dtype is period.

pub const fn is_interval(&self) -> bool

Returns true if the dtype is interval.

pub const fn name(&self) -> &'static str

Return the dtype name as a string.

Matches numpy dtype.name property.

pub const fn kind(&self) -> char

Return the dtype kind character.

Matches numpy dtype.kind property.

pub const fn itemsize(&self) -> usize

Return the dtype itemsize in bytes.

Matches numpy dtype.itemsize property.

pub const fn is_extension(&self) -> bool

Returns true if this is an extension dtype (categorical, sparse, period, interval, nullable).

Matches pd.api.types.is_extension_array_dtype().

pub const fn is_nullable(&self) -> bool

Returns true if this is a nullable extension dtype (Int64, boolean).

Nullable extension dtypes preserve their dtype when nulls are introduced, unlike numpy dtypes which promote to float64.

pub const fn to_non_nullable(&self) -> Self

Returns the non-nullable equivalent dtype.

For nullable extension dtypes, returns the numpy equivalent. For non-nullable dtypes, returns self.

pub const fn to_nullable(&self) -> Self

Returns the nullable equivalent dtype.

For numpy int64/bool, returns the nullable extension dtype. For already-nullable or other dtypes, returns self.

pub const fn is_signed_integer(&self) -> bool

Returns true if this is a signed integer type.

Matches pd.api.types.is_signed_integer_dtype().

pub const fn is_string_dtype(&self) -> bool

Returns true if this is a string/object dtype.

Matches pd.api.types.is_string_dtype().

pub const fn is_any_real_numeric(&self) -> bool

Returns true for any real numeric dtype (integer or float).

Matches pd.api.types.is_any_real_numeric_dtype().

pub const fn is_datetime_like(&self) -> bool

Returns true for datetime-like dtypes (datetime, timedelta, period).

Matches pd.api.types.is_datetime64_any_dtype() family.

pub const fn char(&self) -> char

Return the numpy dtype character code.

Matches numpy dtype.char property.

pub const fn num(&self) -> i32

Return the numpy type number.

Matches numpy dtype.num property.

pub const fn byteorder(&self) -> char

Return the byte order character.

Matches numpy dtype.byteorder property. Returns ‘=’ (native) for all types.

pub const fn str_repr(&self) -> &'static str

Return the numpy dtype string representation.

Matches numpy dtype.str property.

Trait Implementations

impl Clone for DType

fn clone(&self) -> DType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DType

impl Debug for DType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DType

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for DType

impl Hash for DType

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 Ord for DType

fn cmp(&self, other: &DType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DType

fn eq(&self, other: &DType) -> 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 DType

fn partial_cmp(&self, other: &DType) -> 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 DType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DType