Add support for operators that affect structure

matthewwardrop / formulaic

A high-performance implementation of Wilkinson formulas for Python.

MIT License

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Add support for operators that affect structure #113

Closed matthewwardrop closed 2 years ago

matthewwardrop commented 2 years ago

This PR mainlines the framework pieces of #108, allowing operators to collect terms in different groups or substructures (such as collecting random effect terms separately from fixed effect terms; or adding support for IV subformulae/etc.