Mean Comparisons

Now we want to present mean comparisons. A good way to do this is with Rainclouds (which you have already learned about) and try to create rainclouds for the following problem:

You now want to test if satisfaction with democracy differs by district. You have calculated a mean comparison and now want to graphically represent this as well.

ggplot(
  pss, 
  aes(
    x = district, 
    y = stfdem
  )
) + 
  stat_halfeye(
    adjust = 1, 
    width = .4, 
    justification = -.2, 
    .width = 0,
    point_colour = NA
  ) +
  geom_boxplot(
    width = .12, 
    outlier.color = NA 
  ) +
  geom_half_point(
    side = "l", 
    shape = 95,
    range_scale = 0,
    size = 10, 
    alpha = .2
  ) +
  scale_y_continuous(
    breaks = seq(
      0, 
      10, 
      1
    )
  )

ggplot(
  pss, 
  aes(
    x = district, 
    y = stfdem
  )
) + 
  stat_halfeye(
    adjust = 1, 
    width = .4, 
    justification = -.2, 
    .width = 0,
    point_colour = NA
  ) +
  geom_boxplot(
    width = .12, 
    outlier.color = NA 
  ) +
  geom_half_point(
    side = "l", 
    range_scale = .4, 
    alpha = .3
  ) +
  scale_y_continuous(
    breaks = seq(
      0, 
      10, 
      1
    )
  )

Next up, we move on to regressions!