ggplot2tutorial15.R

# Create boxplot and remove the outliers
o <- ggplot(housing[!is.na(housing$region), ], aes(x=region, y=Land.Price.Index)) + geom_boxplot(outlier.shape = NA)

# The options from scale_*_discrete are practically the same as scale_*_continuous except limits.
# Remember that limits controls the minimum and maximum of the chosen axis. Given that this is
# a categorical discrete axis, it doesn't make any sense to define neither. Instead, you control the order of categories.

o + scale_x_discrete(name="Region",
                     breaks=waiver(),
                     labels=waiver(),
                     limits=c("N. East", "South", "West", "Midwest")) # Notice how I change the order of the categories