The Measurement Minute by Gary Angel

Probably the most important step in building a model is making sure you’ve got the right target variable. Usually that’s not too hard. But looking at our line data, we quickly realized that predicting line depth wasn’t going to work as straightforwardly as we thought. The problem is that in some of the locations we’re working with, lines are actively managed. So we saw a roller-coaster pattern to line depths – where as the lines got long they would quickly come back down as registers were adjusted. In a managed line, you can’t use measured line-depth as your target variable. But there is a straightforward solution that works in both managed and unmanaged situations.

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