[R] horizontal lines on stripchart

Iain Gallagher iaingallagher at btopenworld.com
Sat Sep 17 00:15:49 CEST 2005


I would like to add a horizontal line to each column of data on a 
stripchart (vertical=T) to indicate the mean(rather like the package 
Prism does - for those that have used this) for each dataset. I presume 
the best way to do this would be with "lines" but after much trying  / 
playing about I can't figure it out. Can anyone help?


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