Recapping regression
If you’re reading this book, without a doubt, you’ve heard of regression, and maybe you’re even quite versed in its application, but humor me for a moment all the same. I find a quick aside from this topic to be very helpful when framing a conversation about the (S)ARIMA models. In the following diagram, you can see a linear regression line fit through some data points. We’ll start by recapping this concept and then expand into the ARIMA and SARIMA models from there:
Figure 7.1 – A regression line fit in KNIME Analytics Platform
The line fit in the preceding regression is completely straight. We need the ability to capture seasonal patterns, cycles, and other auto-regressive features our time series data might contain. This is where the expansion into the ARIMA and SARIMA models will take us. Let’s define this a bit more.
Defining a regression
While you read this section, remember that...
