ggplot2 boxplots don't make any sense to me, why is this happening?

Question

So I have a dataframe, that goes like:

time,candidate_id,allocation_id,final_score,position data...

Then I'm trying to make a ggplot2 boxplot. I want this boxplot to have a different box for each allocation_id. I tried to make one with:

ggplot(data=(allocation_info), aes(allocation_id, final_score))

but instead of getting multiple boxplots for each allocation_id, I just get a single giant boxplot. Anybody know why this might be happening?

Answer 1

You need to include the group or colour aesthetic:

data(mpg)
ggplot(data=mpg) + geom_boxplot(aes(x=cyl, y=displ, group=cyl))

So for your specific dataset it will be something like:

ggplot(data=(allocation_info), aes(allocation_id, final_score)) + 
    geom_boxplot(aes(group=allocation_id))