[R] X11 Font is missing during Taylor diagram plot

[mmkamal at uwaterloo.ca]

Dear Jim,

I am sorry to write you directly instead of sending a user forum mail.  
I have been trying to plot a Taylor diagram but get confronting the  
following error message:


   > taylor.diagram(ref,model_D1,pos.cor=FALSE)
Error in text.default(1.05 * maxray * i, 1.05 * maxray * sqrt(1 - i^2),  :
   X11 font -adobe-helvetica-%s-%s-*-*-%d-*-*-*-*-*-*-*, face 1 at  
size 7 could not be loaded


I have checked my X11 font and find that there is not  
"-adobe-helvetica" font available in my current system. Could you  
please tell me how can I solve the problem.


Thanks
Kamal