Hi
I have previously generated some plots using the augPred command in the nlme package whereby the fixed effect lines were shown as solid lines and the subject specific lines (with random effects) as dotted lines. I have now returned to these plots but now the different line types are shown in different colours - which means if they are printed in a black and white journal they will be indistinguishable. It has been a while since I last did this so I suspect the change could be related to the package being updated?
 
Can anyone tell me if is there an easy way to generate these plots so that the lines are distinguishable? 
 
Thanks
 
Greg

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