ggplot2: remove colour and draw borders in bar plot

Question

I am currently using ggplot2 to plot a barchart with too many levels in fill. As a result, I am unable tell when a bar ends and the other begin.

Here\'s my sample da

Answer 1

p <- ggplot(aes(variable, Length.1), data = data)+ geom_bar(stat="identity",colour="black", fill="white")+geom_text(...)

Answer 2

I would use the ggplot function instead of qplot. Then you can set the color and fill manually:

ggplot(data,aes(x=variable, y=Length.1,group=value))+
  geom_bar(fill="white",color="black")+
  geom_text(aes(label = Length.1), size = 3, hjust = 0.5, vjust = 3, position ="stack") +
  theme_bw()