towhee.dataframe.iterators.WindowIterator¶

class towhee.dataframe.iterators.WindowIterator(df: DataFrame, start: int = 0, window_size: int = 1, step: Optional[int] = None, use_timestamp: bool = False, block: bool = True)[source]¶

Bases: DataFrameIterator

A row-based window DataFrame iterator.

Parameters:

df (towhee.Dataframe) – The dataframe that is being iterated.
start (int) – Where to start the window from.
window_size (int) – How large of a window.
step (int) – How far to iterate window per read.
use_timestamp (bool) – Whether to use timestamp instead of row_id.
block (bool) – Whether to block when data not present.

Methods

notify

Remove unblock and remove iterator.

Attributes

`accessible_size`	Returns current accessible data size.
`current_index`	Returns the current index.
`df_name`	Returns the df name.
`id`

__init__(df: DataFrame, start: int = 0, window_size: int = 1, step: Optional[int] = None, use_timestamp: bool = False, block: bool = True)[source]¶

property accessible_size: int¶: Returns current accessible data size.

property current_index: int¶: Returns the current index.

property df_name: str¶: Returns the df name.

notify()¶: Remove unblock and remove iterator.