[R] Dual axis labeling of a single quantity

Thomas Adams Thomas.Adams at noaa.gov
Mon Jun 16 20:51:50 CEST 2008

I have a problem where I need to label the vertical axes of a Boxplot 
with related, but different quantities (flow & height), which have a 
known relationship. Primarily I want to plot the variable as a flow on 
the left axis and on the opposing right axis, show the corresponding 
height. Is it possible to get the flow range (max & min) of the left 
axis and then supply the right axis with that range (corresponding 
max/min) which will be plotted automatically by R? It does not matter if 
the opposing tick marks exactly correspond to the tick mark values on 
the left side as long as the scale is correct (that is the correct 
corresponding range).

I'm not even sure where to start searching for this…


Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177

EMAIL:	thomas.adams at noaa.gov

VOICE:	937-383-0528
FAX:	937-383-0033

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