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Scatter Plot Colour

20180603

set.seed(26439)
ds %>%
  sample_n(100) %>%
  ggplot(aes(x=min_temp, y=max_temp, colour=rain_tomorrow)) +
  geom_point() +
  labs(x      = vnames["min_temp"],
       y      = vnames["max_temp"],
       colour = vnames["rain_tomorrow"])

A key variable in the rattle::weatherAUS dataset is rain_tomorrow. By colouring the dots according to the rain_tomorrow we may see a relationship in the data.

The colour is added simply by specifying a further aesthetic, colour=rain_tomorrow. This results in the different values of the variable rain_tomorrow being coloured differently.