The solution, as posted in a comment by @G. Grothendieck, was to use the fileEncoding= argument to specify the correct encoding, which turned out to be either UTF16LE or UCS-2LE according to the OP. Writing this as an answer so that is not lost to the comments.
Perhaps table is what you are after?
The scale_fill_hue() function can take a h.start= parameter to choose where you pick the first color (as described on the ?scale_fill_hue help page)
Use theme(): There’s lots of good information about how to format your ggplots here. You can see a full list of parameters you can modify (basically, all of them) using ?theme.
How about: To do all these operations in one-liner: Or
Something like:
Easier to convert nm to characters and then make the change: EDIT: And if indeed you need to maintain nm as factors, add this in the end:
You should bring your data into long (i.e. molten) format to use it with ggplot2: And then you have to use aes( … , group = Company ) to group them: