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jpmml / r2pmml

R library for converting R models to PMML
GNU Affero General Public License v3.0
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Support for outside-of-model feature engineering using model formulae #36

Open vruusmann opened 6 years ago

vruusmann commented 6 years ago

The r2pmml function has preProcess parameter, which encapsulates out-of-model feature engineering work that has been performed using the caret::preProcess() function.

However, most R users are more comfortable doing feature engineering using model formulae than the caret::preProcess() function. It would be nice if the r2pmml function also had a formula parameter, which would allow existing base::formula objects to be passed on to the converter.

vruusmann commented 6 years ago

User motivation: https://groups.google.com/d/topic/jpmml/Q85BNmhSHVQ/discussion

sanchezismael commented 6 years ago

I need this for save a PMML model with dummies transform.