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Embedder

srai.embedders.Embedder

Bases: ABC

Abstract class for embedders.

transform(regions_gdf, features_gdf, joint_gdf)

abstractmethod

Embed regions using features.

PARAMETER DESCRIPTION
regions_gdf

Region indexes and geometries.

TYPE: GeoDataFrame

features_gdf

Feature indexes, geometries and feature values.

TYPE: GeoDataFrame

joint_gdf

Joiner result with region-feature multi-index.

TYPE: GeoDataFrame

RETURNS DESCRIPTION
DataFrame

pd.DataFrame: Embedding and geometry index for each region in regions_gdf.

RAISES DESCRIPTION
ValueError

If any of the gdfs index names is None.

ValueError

If joint_gdf.index is not of type pd.MultiIndex or doesn't have 2 levels.

ValueError

If index levels in gdfs don't overlap correctly.

Source code in srai/embedders/_base.py
@abc.abstractmethod
def transform(
    self,
    regions_gdf: gpd.GeoDataFrame,
    features_gdf: gpd.GeoDataFrame,
    joint_gdf: gpd.GeoDataFrame,
) -> pd.DataFrame:  # pragma: no cover
    """
    Embed regions using features.

    Args:
        regions_gdf (gpd.GeoDataFrame): Region indexes and geometries.
        features_gdf (gpd.GeoDataFrame): Feature indexes, geometries and feature values.
        joint_gdf (gpd.GeoDataFrame): Joiner result with region-feature multi-index.

    Returns:
        pd.DataFrame: Embedding and geometry index for each region in regions_gdf.

    Raises:
        ValueError: If any of the gdfs index names is None.
        ValueError: If joint_gdf.index is not of type pd.MultiIndex or doesn't have 2 levels.
        ValueError: If index levels in gdfs don't overlap correctly.
    """
    raise NotImplementedError