Struct pf16 

#[repr(transparent)]
pub struct pf16(pub f16);

A portable float16 type.

This type is a newtype wrapper around half::f16. We intend to replace it by Rust’s builtin f16 type once it is stabilized.

Tuple Fields

0: f16

Implementations

impl pf16

pub const NAN: pf16

pub const INFINITY: pf16

pub const NEG_INFINITY: pf16

pub fn to_le_bytes(&self) -> [u8; 2]

pub fn is_nan(self) -> bool

pub fn is_finite(self) -> bool

pub fn abs(self) -> pf16

pub fn trunc(self) -> pf16

pub fn round(self) -> pf16

pub fn floor(self) -> pf16

pub fn ceil(self) -> pf16

pub fn log(self, base: pf16) -> pf16

pub fn to_bits(self) -> u16

pub fn from_bits(b: u16) -> pf16

pub fn min(self, other: pf16) -> pf16

pub fn max(self, other: pf16) -> pf16

Trait Implementations

impl AbsDiff for pf16

type Abs = pf16

fn max_abs_diff() -> <pf16 as AbsDiff>::Abs

fn abs_diff(self, other: pf16) -> <pf16 as AbsDiff>::Abs

impl Add for pf16

type Output = pf16

The resulting type after applying the + operator.

fn add(self, other: pf16) -> pf16

Performs the + operation.

impl AddAssign for pf16

fn add_assign(&mut self, other: pf16)

Performs the += operation.

impl AsPrimitive<f32> for pf16

fn as_(self) -> f32

Convert a value to another, using the as operator.

impl AsPrimitive<f64> for pf16

fn as_(self) -> f64

Convert a value to another, using the as operator.

impl AsPrimitive<i128> for pf16

fn as_(self) -> i128

Convert a value to another, using the as operator.

impl AsPrimitive<i16> for pf16

fn as_(self) -> i16

Convert a value to another, using the as operator.

impl AsPrimitive<i32> for pf16

fn as_(self) -> i32

Convert a value to another, using the as operator.

impl AsPrimitive<i64> for pf16

fn as_(self) -> i64

Convert a value to another, using the as operator.

impl AsPrimitive<i8> for pf16

fn as_(self) -> i8

Convert a value to another, using the as operator.

impl AsPrimitive<pf16> for pf16

fn as_(self) -> pf16

Convert a value to another, using the as operator.

impl AsPrimitive<u128> for pf16

fn as_(self) -> u128

Convert a value to another, using the as operator.

impl AsPrimitive<u16> for pf16

fn as_(self) -> u16

Convert a value to another, using the as operator.

impl AsPrimitive<u32> for pf16

fn as_(self) -> u32

Convert a value to another, using the as operator.

impl AsPrimitive<u64> for pf16

fn as_(self) -> u64

Convert a value to another, using the as operator.

impl AsPrimitive<u8> for pf16

fn as_(self) -> u8

Convert a value to another, using the as operator.

impl Bounded for pf16

fn min_value() -> pf16

Returns the smallest finite number this type can represent

fn max_value() -> pf16

Returns the largest finite number this type can represent

impl Canonical for pf16

fn canonical(self) -> pf16

impl ChunkQuantile<pf16> for ChunkedArray<Float16Type>

fn quantile( &self, quantile: f64, method: QuantileMethod, ) -> Result<Option<pf16>, PolarsError>

Aggregate a given quantile of the ChunkedArray. Returns None if the array is empty or only contains null values.

fn median(&self) -> Option<pf16>

Returns the mean value in the array. Returns None if the array is empty or only contains null values.

impl Clone for pf16

fn clone(&self) -> pf16

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for pf16

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

Formats the value using the given formatter.

impl Default for pf16

fn default() -> pf16

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for pf16

fn deserialize<__D>( __deserializer: __D, ) -> Result<pf16, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl DirtyHash for pf16

fn dirty_hash(&self) -> u64

impl Display for pf16

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

Formats the value using the given formatter.

impl Div for pf16

type Output = pf16

The resulting type after applying the / operator.

fn div(self, other: pf16) -> pf16

Performs the / operation.

impl DivAssign for pf16

fn div_assign(&mut self, other: pf16)

Performs the /= operation.

impl Float for pf16

fn nan() -> pf16

Returns the NaN value.

fn infinity() -> pf16

Returns the infinite value.

fn neg_infinity() -> pf16

Returns the negative infinite value.

fn neg_zero() -> pf16

Returns -0.0.

fn min_value() -> pf16

Returns the smallest finite value that this type can represent.

fn min_positive_value() -> pf16

Returns the smallest positive, normalized value that this type can represent.

fn max_value() -> pf16

Returns the largest finite value that this type can represent.

fn is_nan(self) -> bool

Returns true if this value is NaN and false otherwise.

fn is_infinite(self) -> bool

Returns true if this value is positive infinity or negative infinity and false otherwise.

fn is_finite(self) -> bool

Returns true if this number is neither infinite nor NaN.

fn is_normal(self) -> bool

Returns true if the number is neither zero, infinite, subnormal, or NaN.

fn classify(self) -> FpCategory

Returns the floating point category of the number. If only one property is going to be tested, it is generally faster to use the specific predicate instead.

fn floor(self) -> pf16

Returns the largest integer less than or equal to a number.

fn ceil(self) -> pf16

Returns the smallest integer greater than or equal to a number.

fn round(self) -> pf16

Returns the nearest integer to a number. Round half-way cases away from 0.0.

fn trunc(self) -> pf16

Return the integer part of a number.

fn fract(self) -> pf16

Returns the fractional part of a number.

fn abs(self) -> pf16

Computes the absolute value of self. Returns Float::nan() if the number is Float::nan().

fn signum(self) -> pf16

Returns a number that represents the sign of self.

fn is_sign_positive(self) -> bool

Returns true if self is positive, including +0.0, Float::infinity(), and Float::nan().

fn is_sign_negative(self) -> bool

Returns true if self is negative, including -0.0, Float::neg_infinity(), and -Float::nan().

fn mul_add(self, a: pf16, b: pf16) -> pf16

Fused multiply-add. Computes (self * a) + b with only one rounding error, yielding a more accurate result than an unfused multiply-add.

fn recip(self) -> pf16

Take the reciprocal (inverse) of a number, 1/x.

fn powi(self, n: i32) -> pf16

Raise a number to an integer power.

fn powf(self, n: pf16) -> pf16

Raise a number to a floating point power.

fn sqrt(self) -> pf16

Take the square root of a number.

fn exp(self) -> pf16

Returns e^(self), (the exponential function).

fn exp2(self) -> pf16

Returns 2^(self).

fn ln(self) -> pf16

Returns the natural logarithm of the number.

fn log(self, base: pf16) -> pf16

Returns the logarithm of the number with respect to an arbitrary base.

fn log2(self) -> pf16

Returns the base 2 logarithm of the number.

fn log10(self) -> pf16

Returns the base 10 logarithm of the number.

fn max(self, other: pf16) -> pf16

Returns the maximum of the two numbers.

fn min(self, other: pf16) -> pf16

Returns the minimum of the two numbers.

fn abs_sub(self, other: pf16) -> pf16

The positive difference of two numbers.

fn cbrt(self) -> pf16

Take the cubic root of a number.

fn hypot(self, other: pf16) -> pf16

Calculate the length of the hypotenuse of a right-angle triangle given legs of length x and y.

fn sin(self) -> pf16

Computes the sine of a number (in radians).

fn cos(self) -> pf16

Computes the cosine of a number (in radians).

fn tan(self) -> pf16

Computes the tangent of a number (in radians).

fn asin(self) -> pf16

Computes the arcsine of a number. Return value is in radians in the range [-pi/2, pi/2] or NaN if the number is outside the range [-1, 1].

fn acos(self) -> pf16

Computes the arccosine of a number. Return value is in radians in the range [0, pi] or NaN if the number is outside the range [-1, 1].

fn atan(self) -> pf16

Computes the arctangent of a number. Return value is in radians in the range [-pi/2, pi/2];

fn atan2(self, other: pf16) -> pf16

Computes the four quadrant arctangent of self (y) and other (x).

fn sin_cos(self) -> (pf16, pf16)

Simultaneously computes the sine and cosine of the number, x. Returns (sin(x), cos(x)).

fn exp_m1(self) -> pf16

Returns e^(self) - 1 in a way that is accurate even if the number is close to zero.

fn ln_1p(self) -> pf16

Returns ln(1+n) (natural logarithm) more accurately than if the operations were performed separately.

fn sinh(self) -> pf16

Hyperbolic sine function.

fn cosh(self) -> pf16

Hyperbolic cosine function.

fn tanh(self) -> pf16

Hyperbolic tangent function.

fn asinh(self) -> pf16

Inverse hyperbolic sine function.

fn acosh(self) -> pf16

Inverse hyperbolic cosine function.

fn atanh(self) -> pf16

Inverse hyperbolic tangent function.

fn integer_decode(self) -> (u64, i16, i8)

Returns the mantissa, base 2 exponent, and sign as integers, respectively. The original number can be recovered by sign * mantissa * 2 ^ exponent.

fn epsilon() -> pf16

Returns epsilon, a small positive value.

fn to_degrees(self) -> pf16

Converts radians to degrees.

fn to_radians(self) -> pf16

Converts degrees to radians.

fn is_subnormal(self) -> bool

Returns true if the number is subnormal.

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

Clamps a value between a min and max.

fn copysign(self, sign: Self) -> Self

Returns a number composed of the magnitude of self and the sign of sign.

impl FloorDivMod for pf16

fn wrapping_floor_div_mod(self, other: pf16) -> (pf16, pf16)

impl From<Bytes2Alignment2> for pf16

fn from(value: Bytes2Alignment2) -> pf16

Converts to this type from the input type.

impl From<bool> for pf16

fn from(value: bool) -> pf16

Converts to this type from the input type.

impl From<f32> for pf16

fn from(value: f32) -> pf16

Converts to this type from the input type.

impl From<f64> for pf16

fn from(value: f64) -> pf16

Converts to this type from the input type.

impl From<pf16> for Scalar

fn from(v: pf16) -> Scalar

Converts to this type from the input type.

impl FromBytes for pf16

type Bytes = [u8; 2]

fn from_be_bytes(bytes: &<pf16 as FromBytes>::Bytes) -> pf16

Create a number from its representation as a byte array in big endian.

fn from_le_bytes(bytes: &<pf16 as FromBytes>::Bytes) -> pf16

Create a number from its representation as a byte array in little endian.

fn from_ne_bytes(bytes: &<pf16 as FromBytes>::Bytes) -> pf16

Create a number from its memory representation as a byte array in native endianness.

impl FromPrimitive for pf16

fn from_i64(n: i64) -> Option<pf16>

Converts an i64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u64(n: u64) -> Option<pf16>

Converts an u64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_isize(n: isize) -> Option<pf16>

Converts an isize to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i8(n: i8) -> Option<pf16>

Converts an i8 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i16(n: i16) -> Option<pf16>

Converts an i16 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i32(n: i32) -> Option<pf16>

Converts an i32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_i128(n: i128) -> Option<pf16>

Converts an i128 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_usize(n: usize) -> Option<pf16>

Converts a usize to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u8(n: u8) -> Option<pf16>

Converts an u8 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u16(n: u16) -> Option<pf16>

Converts an u16 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u32(n: u32) -> Option<pf16>

Converts an u32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_u128(n: u128) -> Option<pf16>

Converts an u128 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_f32(n: f32) -> Option<pf16>

Converts a f32 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

fn from_f64(n: f64) -> Option<pf16>

Converts a f64 to return an optional value of this type. If the value cannot be represented by this type, then None is returned.

impl IntoScalar for pf16

fn into_scalar(self, dtype: DataType) -> Result<Scalar, PolarsError>

impl IsFloat for pf16

fn is_float() -> bool

fn is_f16() -> bool

fn is_f32() -> bool

fn is_f64() -> bool

fn nan_value() -> pf16

fn pos_inf_value() -> pf16

fn neg_inf_value() -> pf16

fn is_nan(&self) -> bool

fn is_finite(&self) -> bool

impl IsNull for pf16

const HAS_NULLS: bool = false

type Inner = pf16

fn is_null(&self) -> bool

fn unwrap_inner(self) -> <pf16 as IsNull>::Inner

impl Literal for pf16

fn lit(self) -> Expr

Literal expression.

impl LowerExp for pf16

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

Formats the value using the given formatter.

impl MinMax for pf16

fn nan_min_lt(&self, other: &pf16) -> bool

fn nan_max_lt(&self, other: &pf16) -> bool

fn min_ignore_nan(self, other: pf16) -> pf16

fn max_ignore_nan(self, other: pf16) -> pf16

fn min_propagate_nan(self, other: pf16) -> pf16

fn max_propagate_nan(self, other: pf16) -> pf16

impl Mul for pf16

type Output = pf16

The resulting type after applying the * operator.

fn mul(self, other: pf16) -> pf16

Performs the * operation.

impl MulAssign for pf16

fn mul_assign(&mut self, other: pf16)

Performs the *= operation.

impl NativeType for pf16

const PRIMITIVE: PrimitiveType = PrimitiveType::Float16

The corresponding variant of [PrimitiveType].

type Bytes = [u8; 2]

Type denoting its representation as bytes. This is [u8; N] where N = size_of::<T>.

type AlignedBytes = Bytes2Alignment2

Type denoting its representation as aligned bytes.

fn to_le_bytes(&self) -> <pf16 as NativeType>::Bytes

To bytes in little endian

fn to_be_bytes(&self) -> <pf16 as NativeType>::Bytes

To bytes in big endian

fn from_le_bytes(bytes: <pf16 as NativeType>::Bytes) -> pf16

From bytes in little endian

fn from_be_bytes(bytes: <pf16 as NativeType>::Bytes) -> pf16

From bytes in big endian

impl NativeType for pf16

const TYPE: PhysicalType

type Bytes = [u8; 2]

type AlignedBytes = Bytes2Alignment2

fn to_le_bytes(&self) -> <pf16 as NativeType>::Bytes

fn from_le_bytes(bytes: <pf16 as NativeType>::Bytes) -> pf16

fn ord(&self, other: &pf16) -> Ordering

impl Neg for pf16

type Output = pf16

The resulting type after applying the - operator.

fn neg(self) -> <pf16 as Neg>::Output

Performs the unary - operation.

impl Num for pf16

type FromStrRadixErr = <f16 as Num>::FromStrRadixErr

fn from_str_radix( s: &str, radix: u32, ) -> Result<pf16, <pf16 as Num>::FromStrRadixErr>

Convert from a string and radix (typically 2..=36).

impl NumCast for pf16

fn from<T>(n: T) -> Option<pf16>

where T: ToPrimitive,

Creates a number from another value that can be converted into a primitive via the ToPrimitive trait. If the source value cannot be represented by the target type, then None is returned.

impl NumericNative for pf16

type PolarsType = Float16Type

type TrueDivPolarsType = Float16Type

impl One for pf16

fn one() -> pf16

Returns the multiplicative identity element of Self, 1.

fn is_one(&self) -> bool

Returns true if self is equal to the multiplicative identity.

fn set_one(&mut self)

Sets self to the multiplicative identity element of Self, 1.

impl PartialEq for pf16

fn eq(&self, other: &pf16) -> 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 pf16

fn partial_cmp(&self, other: &pf16) -> 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 PlNumArithmetic for pf16

type TrueDivT = pf16

fn wrapping_abs(self) -> pf16

fn wrapping_neg(self) -> pf16

fn wrapping_add(self, rhs: pf16) -> pf16

fn wrapping_sub(self, rhs: pf16) -> pf16

fn wrapping_mul(self, rhs: pf16) -> pf16

fn wrapping_floor_div(self, rhs: pf16) -> pf16

fn wrapping_trunc_div(self, rhs: pf16) -> pf16

fn wrapping_mod(self, rhs: pf16) -> pf16

fn true_div(self, rhs: pf16) -> <pf16 as PlNumArithmetic>::TrueDivT

fn legacy_div(self, rhs: Self) -> Self

impl Pow<pf16> for pf16

type Output = pf16

The result after applying the operator.

fn pow(self, rhs: pf16) -> <pf16 as Pow<pf16>>::Output

Returns self to the power rhs.

impl Rem for pf16

type Output = pf16

The resulting type after applying the % operator.

fn rem(self, other: pf16) -> pf16

Performs the % operation.

impl RemAssign for pf16

fn rem_assign(&mut self, other: pf16)

Performs the %= operation.

impl SerPrimitive for pf16

fn write(f: &mut Vec<u8>, val: pf16) -> usize

where pf16: Sized,

impl Serialize for pf16

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub for pf16

type Output = pf16

The resulting type after applying the - operator.

fn sub(self, other: pf16) -> pf16

Performs the - operation.

impl SubAssign for pf16

fn sub_assign(&mut self, other: pf16)

Performs the -= operation.

impl Sum for pf16

fn sum<I>(iter: I) -> pf16

where I: Iterator<Item = pf16>,

Takes an iterator and generates Self from the elements by “summing up” the items.

impl ToBytes for pf16

type Bytes = [u8; 2]

fn to_be_bytes(&self) -> <pf16 as ToBytes>::Bytes

Return the memory representation of this number as a byte array in big-endian byte order.

fn to_le_bytes(&self) -> <pf16 as ToBytes>::Bytes

Return the memory representation of this number as a byte array in little-endian byte order.

fn to_ne_bytes(&self) -> <pf16 as ToBytes>::Bytes

Return the memory representation of this number as a byte array in native byte order.

impl ToPrimitive for pf16

fn to_i64(&self) -> Option<i64>

Converts the value of self to an i64. If the value cannot be represented by an i64, then None is returned.

fn to_u64(&self) -> Option<u64>

Converts the value of self to a u64. If the value cannot be represented by a u64, then None is returned.

fn to_isize(&self) -> Option<isize>

Converts the value of self to an isize. If the value cannot be represented by an isize, then None is returned.

fn to_i8(&self) -> Option<i8>

Converts the value of self to an i8. If the value cannot be represented by an i8, then None is returned.

fn to_i16(&self) -> Option<i16>

Converts the value of self to an i16. If the value cannot be represented by an i16, then None is returned.

fn to_i32(&self) -> Option<i32>

Converts the value of self to an i32. If the value cannot be represented by an i32, then None is returned.

fn to_i128(&self) -> Option<i128>

Converts the value of self to an i128. If the value cannot be represented by an i128 (i64 under the default implementation), then None is returned.

fn to_usize(&self) -> Option<usize>

Converts the value of self to a usize. If the value cannot be represented by a usize, then None is returned.

fn to_u8(&self) -> Option<u8>

Converts the value of self to a u8. If the value cannot be represented by a u8, then None is returned.

fn to_u16(&self) -> Option<u16>

Converts the value of self to a u16. If the value cannot be represented by a u16, then None is returned.

fn to_u32(&self) -> Option<u32>

Converts the value of self to a u32. If the value cannot be represented by a u32, then None is returned.

fn to_u128(&self) -> Option<u128>

Converts the value of self to a u128. If the value cannot be represented by a u128 (u64 under the default implementation), then None is returned.

fn to_f32(&self) -> Option<f32>

Converts the value of self to an f32. Overflows may map to positive or negative inifinity, otherwise None is returned if the value cannot be represented by an f32.

fn to_f64(&self) -> Option<f64>

Converts the value of self to an f64. Overflows may map to positive or negative inifinity, otherwise None is returned if the value cannot be represented by an f64.

impl ToTotalOrd for pf16

type TotalOrdItem = TotalOrdWrap<pf16>

type SourceItem = pf16

fn to_total_ord(&self) -> <pf16 as ToTotalOrd>::TotalOrdItem

fn peel_total_ord( ord_item: <pf16 as ToTotalOrd>::TotalOrdItem, ) -> <pf16 as ToTotalOrd>::SourceItem

impl TotalEq for pf16

fn tot_eq(&self, other: &pf16) -> bool

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

impl TotalHash for pf16

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

where H: Hasher,

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

where H: Hasher, Self: Sized,

impl TotalOrd for pf16

fn tot_cmp(&self, other: &pf16) -> Ordering

fn tot_lt(&self, other: &pf16) -> bool

fn tot_gt(&self, other: &pf16) -> bool

fn tot_le(&self, other: &pf16) -> bool

fn tot_ge(&self, other: &pf16) -> bool

impl TryFrom<&ParquetScalar> for pf16

type Error = ()

The type returned in the event of a conversion error.

fn try_from( _: &ParquetScalar, ) -> Result<pf16, <pf16 as TryFrom<&ParquetScalar>>::Error>

Performs the conversion.

impl TypedLiteral for pf16

fn typed_lit(self) -> Expr

Literal expression.

impl WrappingAdd for pf16

fn wrapping_add(&self, v: &pf16) -> pf16

Wrapping (modular) addition. Computes self + other, wrapping around at the boundary of the type.

impl Zero for pf16

fn zero() -> pf16

Returns the additive identity element of Self, 0.

fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

fn set_zero(&mut self)

Sets self to the additive identity element of Self, 0.

impl Zeroable for pf16

fn zeroed() -> Self

Calls zeroed.

impl Copy for pf16

impl Pod for pf16

impl SealedRolling for pf16

impl StructuralPartialEq for pf16