Trait bookdata::arrow::row::FrameBuilder
source · pub trait FrameBuilder<R>{
// Required methods
fn with_capacity(cap: usize) -> Self;
fn append_row(&mut self, row: R);
fn build(self) -> PolarsResult<DataFrame>;
// Provided method
fn extend<I>(&mut self, iter: I)
where I: IntoIterator<Item = R> { ... }
}Expand description
Interface for data frame builders.
Required Methods§
sourcefn with_capacity(cap: usize) -> Self
fn with_capacity(cap: usize) -> Self
Instantiate a frame builder with a specified capacity.
sourcefn append_row(&mut self, row: R)
fn append_row(&mut self, row: R)
Add a row to the frame builder.
Provided Methods§
sourcefn extend<I>(&mut self, iter: I)where
I: IntoIterator<Item = R>,
fn extend<I>(&mut self, iter: I)where
I: IntoIterator<Item = R>,
Add an iterable of items to the frame.
Object Safety§
This trait is not object safe.