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When a chart spec includes a Vega transform or signals that are not supported, the pre_transform_values function raises an error message like this:
ValueError: Pre-transform error: Requested variable (Variable { name: "data_2", namespace: Data }, [])
requires transforms or signal expressions that are not yet supported
It would be much more helpful if the error included a description of exactly what feature is not supported. This will require some significant refactoring to the planner, but should be doable.
The text was updated successfully, but these errors were encountered:
When a chart spec includes a Vega transform or signals that are not supported, the
pre_transform_values
function raises an error message like this:It would be much more helpful if the error included a description of exactly what feature is not supported. This will require some significant refactoring to the planner, but should be doable.
The text was updated successfully, but these errors were encountered: