CHAID/CART Pre Requisites, Usage and Guidelines to be followed

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decision_trees

#1

Is it advisable to use Classification Tree techniques (CHAID / CART) when the class proportions is highly skewed.
For e.g. Class A is 98% of the base and Class B is only 2% of the population.


#2

It’s totally dependent on dataset i.e what is the relation between learners and dependent variable!But usually, cart is not a good algo in this type of casesEven no algorithm works well in a highly imbalanced dataset.
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