Create single table coverage property

[amontanez24]

Problem Description

Now that we have property classes, we want to move the metrics used in the DiagnosticReport into their respective properties.

This is the spec for the Coverage property:

Attributes

• _details - A dataframe containing the following columns
  • 'Column'
  • 'Metric'
  • 'Score'

The metrics used in this class are: [RangeCoverage, CategoryCoverage]

Methods

• _generate_details(self, real_data, synthetic_data, metadata, progress_bar) - Generate the _details dataframe that will be used by the base class to get the score. Pseudocode:

  for column in real_data.columns:
  if column.sdtype in ('categorical', 'boolean'):
      metric = 'CategoryCoverage'
      score = CategoryCoverage.compute_breakdown(real_data, synthetic_data)
  elif column.sdtype in ('datetime', 'numerical'):
      metric = 'RangeCoverage'
      score = RangeCoverage.compute_breakdown(real_data, synthetic_data)
  else:
      continue

• get_visualization() - Returns a plotly.graph_objects._figure.Figure object for the specified table. Use code from get_coverage_plot.

Expected behavior

>>> prop = Coverage()
>>> prop.get_score()
>>> 0.89
>>> prop.get_visualization()

Additional context

• we should catch any exceptions the same way we do here

[amontanez24]

Closed by #424