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ENH: expose aggregate sum value for hierarchy transforms #1900
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could you please review, @domoritz |
Thanks for working on this PR! Please see my notes for needed fixes. Also, it would be helpful to document why this change is needed and valuable. In particular, I'd love to see a test specification that demonstrates the feature and its use. |
Currently, sum value is implicitly encoded to relevant hierarchy transform's core mark properties. With This change enables the creation of these examples in Vega: https://gramener.com/fmcg/ |
fixes #1380