R for Health Data Science by Ewen Harrison;Riinu Pius; & Pius Riinu

Author:Ewen Harrison;Riinu Pius; & Pius Riinu [Неизв.]
Language: eng
Format: epub
Publisher: CRC Press (Unlimited)
Published: 2020-10-20T21:00:00+00:00

7.2.5 Simple linear regression

As you can see, ggplot() is very happy to run and plot linear regression models for us. While this is convenient for a quick look, we usually want to build, run, and explore these models ourselves. We can then investigate the intercepts and the slope coefficients (linear increase per year):

First let’s plot two countries to compare, Turkey and United Kingdom:

gapdata %>%

filter(country %in% c("Turkey", "United Kingdom")) %>%

ggplot(aes(x = year, y = lifeExp, colour = country)) +

geom_point()

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