[R] component chart

[Angela Benette]

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newbie-question

How do I create a component chart using R? For example, given the following data:
 
              1994        
sales         80,000      
maintenace    20,000

I want to create a horizontal bar graph where sales starts from 0 to 80,000 and maintenance starts from 80,000 to 100,000. I also want to display the total as another bar starting from 0 to 100,000.

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