Given a time series set of data with numerical values, we often immediately lean towards using forecasting to predict the future.

In this forecasting example, we will look at how to interpret the results from a forecast model and make modifications as needed. The forecast model we will use is stl().

Natural gas companies usually display a seasonal component, so we will evaluate the adjusted closing price of Northwest Natural Gas Co (NWN) from 1/1/2007 to 6/30/2016.

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