To fill a missing date (same thing for continuous numbers) we often use the mean or the median value. There are also cases (it depend on the way the data was collected) where using one of the extreme v…
Rich datasets contains many explanatory variables. The more explanatory variable candidates we have the more likely we are to build a good predictive model.
DATA CHARACTERISTICS: Static data available, information on the reported failure time of each machine or recorded date of when a given machine became unobservable for failure.