Hello,
 
my data is an ordered list of observations where each observation is either of condition "efficient" (coded as 1) or "non-efficient" (0) as e.g.
 
No. Obs Condition
1 1.1 0
2 1.2 1
3 1.4 1
4 1.5 0
5 2.5 1 
etc.
 
My goal is to plot a single line with lty='o' but different symbols for either condition whenever condition is 1 or 0, i.e. on the x-axis the consecutive no. of observation is plotted with the obs on the y-axis as two different symbols (e.g. pch=1 and  pch=2). 
 
Is there any way to achieve this?
 
Thanks in advance
Stefan
 
 
 
 

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