Best Python code snippet using pandera_python
schema_statistics.py
Source:schema_statistics.py
...4import pandas as pd5from . import dtypes6from .checks import Check7from .engines import pandas_engine8def infer_dataframe_statistics(df: pd.DataFrame) -> Dict[str, Any]:9 """Infer column and index statistics from a pandas DataFrame."""10 nullable_columns = df.isna().any()11 inferred_column_dtypes = {col: _get_array_type(df[col]) for col in df}12 column_statistics = {13 col: {14 "dtype": dtype,15 "nullable": bool(nullable_columns[col]),16 "checks": _get_array_check_statistics(df[col], dtype),17 }18 for col, dtype in inferred_column_dtypes.items()19 }20 return {21 "columns": column_statistics if column_statistics else None,22 "index": infer_index_statistics(df.index),...
schema_inference.py
Source:schema_inference.py
...44 """Infer a DataFrameSchema from a pandas DataFrame.45 :param df: DataFrame object to infer.46 :returns: DataFrameSchema47 """48 df_statistics = infer_dataframe_statistics(df)49 schema = DataFrameSchema(50 columns={51 colname: Column(52 properties["dtype"],53 checks=parse_check_statistics(properties["checks"]),54 nullable=properties["nullable"],55 )56 for colname, properties in df_statistics["columns"].items()57 },58 index=_create_index(df_statistics["index"]),59 coerce=True,60 )61 schema._is_inferred = True62 return schema...
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