cheatsheets/rstudio.md

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   2 ### Pie Receipt
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   4 Pie chart with duplicate categories merged.
   5
   6 ```rstudio
   7 library("dplyr")          ## load
   8 TimeSum <- (TimeTracking %>% group_by(Category) %>% summarize(Duration = sum(Duration)))
   9 pie(TimeSum$Duration, TimeSum$Category
  10 ```