Ekta Khanna created MADLIB-1516:
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Summary: Allow empty string for Logistic and Linear regression
Key: MADLIB-1516
URL: https://issues.apache.org/jira/browse/MADLIB-1516
Project: Apache MADlib
Issue Type: Improvement
Reporter: Ekta Khanna
Fix For: v2.2.0
For most of the madlib traing functions we can pass an empty string "" (which
is treated as a NULL) for the groupingCol.
However, for madlib.logregr_train and madlib.linregr_train we need to
explicitly pass NULL else it errors out with the following error if an empty
string is passed in:
{code}
plpy.Error: Linregr error: Invalid grouping columns name!
{code}
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