I have troubles trying to use ggplot2 package. All the graphs I got are empty:
ggplot(data=dataa,aes(x=Description, y=RPKM,fill=Condition))+ geom_bar(position="dodge",stat="identity")
dataa is a piece of a bigger data frame like this:
Description Tissue Condition RPKM re brain obese 3 re brain Slim 34 re brain Fit 35 re1 brain Fit 23 re1 brain obese 34 re1 brain Slim 67
Do you have any idea what I'm doing wrong?