Hello everyone,
i have a Question about the nodes Reference Column Filter and Low Variance Filter. In what cases are they useful? What are the tippical areas of appliance.
It would be nice , if someone could answer me.
Greetings
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The Low Variance Filter can be used to do some kind of feature pre-selection. Columns with low variance are likely unsuitable for later prediction. They can even be a problem for e.g. polynomial regression because they introduce interdependencies between columns and/or rows and prevent a unique solution to the regression.
thx for the answer.
then this has no advantage for association rules ? is that correct ???
greetings
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