Which is more important – understanding what happened to your business last week or understanding what's happening right now? Well, both can provide useful insights that you might be able to use to ...

Many techniques exist for deriving predictive modeling functions and we will not provide a thorough review here. For in-depth overviews, there are many books on this topic, for example, Kuhn and ...

Excel's data validation feature is more versatile than you might think. Learn how to use literal values, input values, list values, and even formulas to restrict input date values using data ...