Show percent % instead of counts in charts of categorical variables

Question

I\'m plotting a categorical variable and instead of showing the counts for each category value.

I\'m looking for a way to get ggplot to display the perc

Answer 1

this modified code should work

p = ggplot(mydataf, aes(x = foo)) + 
    geom_bar(aes(y = (..count..)/sum(..count..))) + 
    scale_y_continuous(formatter = 'percent')

if your data has NAs and you dont want them to be included in the plot, pass na.omit(mydataf) as the argument to ggplot.

hope this helps.