But it isn’t an exact formula, ... Continue reading “Understanding Linear Regression” →. Posted in Machine Learning Tagged linear regression, math. Search. Search for: ...

A regression equation with a zillion dummy variables in it is hard to read and has little generalizable business value. For example, instead of having a factor “city” with many different levels/values ...

10.1 Kitchen sink model. We can extend the lm(y~x) function to construct a more complicated “formula” for the multi-dimensional model: lm(y ~ x1 + x2 + ... + xn ).This tells R to find the best model ...