[R] diamond graphs

[Barry Rowlingson]

Can I just check something? If I write some code in R to produce these 
diamond graphs - I reckon 20-30 lines should do it - and post it to 
R-help, have I broken the law if there's a patent on them? If I produce 
these graphs using a pen, paper and my own artistic skill, will that 
make me liable to a jail term? Will my code or artistic efforts be okay 
if I pay the originators a fee and put a 'licensed diamond-graph 
producer #55243' logo at the bottom?

  Now I'm starting to worry that SCO will claim they hold copyrights on 
histograms.

Baz