pandera.Column.validate

Column.validate(check_obj, head=None, tail=None, sample=None, random_state=None, lazy=False)[source]

Validate a Column in a DataFrame object.

Parameters
  • check_obj (DataFrame) – pandas DataFrame to validate.

  • head (Optional[int]) – validate the first n rows. Rows overlapping with tail or sample are de-duplicated.

  • tail (Optional[int]) – validate the last n rows. Rows overlapping with head or sample are de-duplicated.

  • sample (Optional[int]) – validate a random sample of n rows. Rows overlapping with head or tail are de-duplicated.

  • random_state (Optional[int]) – random seed for the sample argument.

  • lazy (bool) – if True, lazily evaluates dataframe against all validation checks and raises a SchemaErrorReport. Otherwise, raise SchemaError as soon as one occurs.

Return type

DataFrame

Returns

validated DataFrame.