polars_core::scalar

Struct Scalar

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pub struct Scalar { /* private fields */ }

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impl Scalar

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pub fn new(dtype: DataType, value: AnyValue<'static>) -> Self

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pub fn is_null(&self) -> bool

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pub fn is_nan(&self) -> bool

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pub fn value(&self) -> &AnyValue<'static>

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pub fn as_any_value(&self) -> AnyValue<'_>

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pub fn into_series(self, name: PlSmallStr) -> Series

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pub fn into_column(self, name: PlSmallStr) -> Column

Turn a scalar into a column with length=1.

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pub fn dtype(&self) -> &DataType

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pub fn update(&mut self, value: AnyValue<'static>)

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impl Clone for Scalar

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fn clone(&self) -> Scalar

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Scalar

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

Formats the value using the given formatter. Read more
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impl From<bool> for Scalar

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fn from(v: bool) -> Self

Converts to this type from the input type.
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impl From<f32> for Scalar

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fn from(v: f32) -> Self

Converts to this type from the input type.
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impl From<f64> for Scalar

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fn from(v: f64) -> Self

Converts to this type from the input type.
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impl From<i16> for Scalar

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fn from(v: i16) -> Self

Converts to this type from the input type.
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impl From<i32> for Scalar

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fn from(v: i32) -> Self

Converts to this type from the input type.
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impl From<i64> for Scalar

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fn from(v: i64) -> Self

Converts to this type from the input type.
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impl From<i8> for Scalar

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fn from(v: i8) -> Self

Converts to this type from the input type.
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impl From<u16> for Scalar

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fn from(v: u16) -> Self

Converts to this type from the input type.
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impl From<u32> for Scalar

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fn from(v: u32) -> Self

Converts to this type from the input type.
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impl From<u64> for Scalar

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fn from(v: u64) -> Self

Converts to this type from the input type.
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impl From<u8> for Scalar

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fn from(v: u8) -> Self

Converts to this type from the input type.
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impl PartialEq for Scalar

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

Auto Trait Implementations§

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impl Freeze for Scalar

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impl !RefUnwindSafe for Scalar

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impl Send for Scalar

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impl Sync for Scalar

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impl Unpin for Scalar

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impl !UnwindSafe for Scalar

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V