Linear regression Test linear moedel One-way ANOVA Linear regression lm(y ~ x1 + x2 + x3) # multiple linear regression lm(log(y) ~ x) # log transformed lm(sqrt(y) ~ x) # sqrt transformed lm( y ~ log(x)) # fields transformed llm(log(y) ~ log(x)) # everything is transformed lm(y ~ .) # use all fields for regression model lm(y ~ x + 0) # forced zero intercept lm(y ~ x*k) # interaction of two variables lm(y ~ x + k + x:k) # product of xkl but without interaction lm(y ~ (x + k + .
Pure math for linear regression model.
Practical example showing how to generate data set using given function, how to split data, buld spline model on train data and how to use test data to find optimal parameters of the model.