pub struct CategoricalChunkedBuilder<T: PolarsCategoricalType> { /* private fields */ }Available on crate feature
dtype-categorical only.Implementations§
Source§impl<T: PolarsCategoricalType> CategoricalChunkedBuilder<T>
impl<T: PolarsCategoricalType> CategoricalChunkedBuilder<T>
pub fn new(name: PlSmallStr, dtype: DataType) -> Self
pub fn dtype(&self) -> &DataType
pub fn reserve(&mut self, len: usize)
pub fn append_cat( &mut self, cat: CatSize, mapping: &Arc<CategoricalMapping>, ) -> PolarsResult<()>
pub fn append_str(&mut self, val: &str) -> PolarsResult<()>
pub fn append_null(&mut self)
pub fn finish(self) -> CategoricalChunked<T>
Auto Trait Implementations§
impl<T> Freeze for CategoricalChunkedBuilder<T>
impl<T> RefUnwindSafe for CategoricalChunkedBuilder<T>
impl<T> Send for CategoricalChunkedBuilder<T>
impl<T> Sync for CategoricalChunkedBuilder<T>
impl<T> Unpin for CategoricalChunkedBuilder<T>
impl<T> UnwindSafe for CategoricalChunkedBuilder<T>
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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