Combination graphs

Points, boxplots and violin plots etc can be combined easily: 

code: 
    > ggplot(bwdf, aes(x=race, y=age))+ geom_boxplot(alpha=0.5)+ geom_violin(alpha=0.5)+ geom_jitter()

The alpha variable indicates transparency of that component. 

output (graph): 

                 


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