Heteroscedasticity

In the case of regression trees, heteroscedasticity, or the tendency for higher-value responses to have more variation, can be problematic. Because regression trees seek to minimize within-node impurity, there will be a tendency to split nodes with high variance. Yet, the observations within that node may, in fact, belong together. The remedy is to apply variance-stabilizing transformations to the response as one would do in a linear regression problem. Although regression trees are invariant to monotonic transformations on explanatory variables, transformations like a natural log or square root may be appropriate for the response variable.

10 Ways To Fight Off Cancer

10 Ways To Fight Off Cancer

Learning About 10 Ways Fight Off Cancer Can Have Amazing Benefits For Your Life The Best Tips On How To Keep This Killer At Bay Discovering that you or a loved one has cancer can be utterly terrifying. All the same, once you comprehend the causes of cancer and learn how to reverse those causes, you or your loved one may have more than a fighting chance of beating out cancer.

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