great_expectations.expectations.core.expect_column_values_to_be_decreasing

Module Contents

Classes

ExpectColumnValuesToBeDecreasing(configuration: Optional[ExpectationConfiguration] = None)

Expect column values to be decreasing.

class great_expectations.expectations.core.expect_column_values_to_be_decreasing.ExpectColumnValuesToBeDecreasing(configuration: Optional[ExpectationConfiguration] = None)

Bases: great_expectations.expectations.expectation.ColumnMapExpectation

Expect column values to be decreasing.

By default, this expectation only works for numeric or datetime data. When parse_strings_as_datetimes=True, it can also parse strings to datetimes.

If strictly=True, then this expectation is only satisfied if each consecutive value is strictly decreasing–equal values are treated as failures.

expect_column_values_to_be_decreasing is a column_map_expectation.

Parameters

column (str) – The column name.

Keyword Arguments
  • strictly (Boolean or None) – If True, values must be strictly greater than previous values

  • parse_strings_as_datetimes (boolean or None) – If True, all non-null column values to datetimes before making comparisons

  • mostly (None or a float between 0 and 1) – Return “success”: True if at least mostly fraction of values match the expectation. For more detail, see mostly.

Other Parameters
  • result_format (str or None) – Which output mode to use: BOOLEAN_ONLY, BASIC, COMPLETE, or SUMMARY. For more detail, see result_format.

  • include_config (boolean) – If True, then include the expectation config as part of the result object. For more detail, see include_config.

  • catch_exceptions (boolean or None) – If True, then catch exceptions and include them as part of the result object. For more detail, see catch_exceptions.

  • meta (dict or None) – A JSON-serializable dictionary (nesting allowed) that will be included in the output without modification. For more detail, see meta.

Returns

An ExpectationSuiteValidationResult

Exact fields vary depending on the values passed to result_format and include_config, catch_exceptions, and meta.

See also

expect_column_values_to_be_increasing

library_metadata
map_metric = column_values.decreasing
success_keys = ['strictly', 'mostly', 'parse_strings_as_datetimes']
default_kwarg_values
validate_configuration(self, configuration: Optional[ExpectationConfiguration])
classmethod _prescriptive_renderer(cls, configuration=None, result=None, language=None, runtime_configuration=None, **kwargs)