[R] How to change the label in plot.ts ?

Tong Wang wangtong at usc.edu
Fri Mar 17 08:46:19 CET 2006

Hi you guys:
      I have been wondering if there is any way to change the labeling in plot.ts( ),  for example , if I plot two sequences,
i always got y labels as "series1", "series2", I tried to use ylab=c((expression(mu_1)),(expression(mu_2))), but it 
doesn't work.
      thanks in advance for any help


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