Four models in analysis:
Since there are lot of confusions among us as in which model will be used for which analysis. So inorder to clarify that I have listed all four models and its applications. Descriptive - What happened - Mean , Median, Variance, SD Diagnostic - Why it happened- Covariance and correlation Predictive - What can happen - Logical regression and Time series analysis Prescriptive - How to make it happen - Deterministic(Optimal algos) and Stochaistic (Monte carlo simulator & Decision trees)