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Indexes Creation Method





               Why using indexes ?
              I   ndexes are particularly useful in this situation since they will help us



                  compare situations without scaling effect. It is also a very good way
                  to highlight the combined effect of many features on users' behavior.


               Dedication index creation process:





                    Replayability                     Tenacity                   Perserverance








                                                 Standardization            ensure comparability






                                       Sum of standardized features






                                                     Averaging






                                            Logistic transformation                 allows [0,1] values





                                              Index of Dedication               creation of dedication
                                                                                        index





               Index of Dedication: This index lets us see for each checkpoint the level
               of  dedication  of  the  users.  The  lower  is  the  index,  the  higher  the
               probability of a user to leave in case of failure or quit.



               The index can be interpreted as follows:

                       If Index < 0.5 => High probability of losing users if fail or quit

                       If Index > 0.6 => Low probability of losing users if fail or quit

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