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Showing content from https://github.com/tidyverse/dplyr/issues/3721 below:

morph() to automatically remove columns "used up" by a mutate() · Issue #3721 · tidyverse/dplyr · GitHub

Dear dplyr developers,

A recent Stack Overflow question raised an interesting use case of having columns fed to a mutate() call automatically removed from the result. To do this, the mutator would need to parse the input expressions to determine what symbols were used, and I made the first pass at designing such a function. The question author liked my answer and suggested that I contribute it to dplyr.

I am happy to work on a PR with a more robust implementation, but I wanted to check with you if such a feature would align with your design principles and the spirit of the package.

Thanks. Big fan of your work.
-Artem


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