[R] strings plots

[A Z]

Hi all !

I'm new in this list and newbie about R
I'm trying to use R scripts (as in the attached file) for creating some distributions plots of data retrieved by a workflow(with Rserve, to be precise).

I was able to do it (even if not in a beatiful way, I have to improve it especially about labels and coordinates) with number inputs like :
110,248,245,151,175,165,163,52,213,315,164,276,273,273,175,220,284,216,213,278,245,157,278,248    

My problem appear when I want to create such plots with inputs composed by strings like:
CORPUS,CORPUS,CORPUS,CORPUS,CORPUS,CORPUS,CORPUS,CORPUS,OVARY,OVARY,OVARY,OVARY,PERITONEUM,PERITONEUM,PERITONEUM,PERITONEUM,PERITONEUM,PERITONEUM,PERITONEUM,PERITONEUM,PERITONEUM,UTERUS,UTERUS,UTERUS 
for creating plots of the distributions of the different 'words'.
(e.g. bar named corpus that tell me how many time it is repeated, and so on).

I hope to be clear enough!

thank you
cheers