ColumnAggregateMetricProvider
- class great_expectations.expectations.metrics.ColumnAggregateMetricProvider#
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Base class for all Column Aggregate Metrics, which define metrics to be calculated in aggregate from a given column.
An example of this is column.mean, which returns the mean of a given column.
- Parameters
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metric_name (str) – A name identifying the metric. Metric Name must be globally unique in a great_expectations installation.
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domain_keys (tuple) – A tuple of the keys used to determine the domain of the metric.
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value_keys (tuple) – A tuple of the keys used to determine the value of the metric.
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In some cases, subclasses of MetricProvider, such as ColumnAggregateMetricProvider, will already have correct values that may simply be inherited by Metric classes.
- -Relevant Documentation Links -