[R] Tree-Based Methods : Advantages and Disadvantages of Tree

Advantages

• Trees are very easy to explain to people.
• Decision trees more closely mirror human decision-making than do the regression and other classification approaches.
• Trees can be displayed graphically, and are easily interpreted.
• Trees can easily handle qualitative predictors without the need to create dummy variables.

Disadvantages

• Trees do not have the same level of predictive accuracy as some of other regression and classification approaches.
• Using aggregating many decision trees can improve the predictive performance of trees.