R-Squared is the most commonly used indicator of how good a model fits some data. The author discusses why this indicator can be misleading in some cases and sh

R-Squared is the most commonly used indicator of how good a model fits some data. The author discusses why this indicator can be misleading in some cases and shows an example. There is nothing interesting for people unfamiliar with R-Squared values or model fitting. But in fact, it is not complicated. If you feel curious, feel free to ask any specific question you have.