[R] graph: horizontal bar reflecting number of data

[Dagmar]

Dear all,

I hope someone can help with my problem:

I have a dataframe like this:

datframe <- data.frame(Name=c("Kati","Kati","Kati","Leon","Leon","Leon" 
), week =c("1","2", "3", "1","2", "3"), numberdata =c("5","12", "1", 
"6","2", "5"))
datframe

I want to create a graph like the attached one (jpg). I can't bring the 
bars to  line up by week... desperating.

(in case you don't see the jpg: I want a horizontal bar which reflects 
the number of data per week by the colour of the shading).

Can anyone help?

Tagmarie