Data Science Desktop Survival Guide by Graham Williams
Desktop Survival Project Home Preface Data Science Data Visualisation Resources Bibliography Index

CLICK HERE TO VISIT THE UPDATED SURVIVAL GUIDE

Skewed Distributions

Raw The plot of Figure 2.3 certainly informs us about the skewed nature of the amount of rainfall recorded for any one day, but we lose a lot of resolution at the low end.

Note that we use a subset of the dataset to include only those observations of rainfall (i.e., where the rainfall is non-zero). Otherwise a warning will note many rows contain non-finite values in calculating the density statistic.

ds %>%
  filter(rainfall != 0) %>%
  ggplot(aes(x=rainfall)) +
  geom_density() +
  scale_y_continuous(labels=comma) +
  theme(legend.position="none")

Figure 2.3: Skewed density distribution.