Page 190 - Data Science Algorithms in a Week

R Reference

Linear regression

R is equipped with the command lm to fit the linear models:

Input:

source_code/appendix_b_r/example07_linear_regression.r
temperatures = data.frame(
fahrenheit = c(5,14,23,32,41,50),
celsius = c(-15,-10,-5,0,5,10)
)
model = lm(celsius ~ fahrenheit, data = temperatures)
print(model)
Output:

$ Rscript example07_linear_regression.r
Call:
lm(formula = celsius ~ fahrenheit, data = temperatures)
Coefficients:
(Intercept) fahrenheit
-17.7778 0.5556

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