Github user jeffsteinmetz commented on the pull request:

    https://github.com/apache/incubator-zeppelin/pull/208#issuecomment-195050282
  
    Does anybody have feedback regarding the use of `%knitr` for plotting?
    Seems having to use the `%knitr` interpreter for certain workflows is 
unnecessary.
    
    any others have feedback as to we we would want to add all of this to get 
graphing to work: `%knitr echo=F,results='asis',message=F,warning=F`
    
    instead of just using %r
    
    ```
    %r
    
    library(googleVis)
    Motion=gvisMotionChart(Fruits, idvar="Fruit", timevar = "Year")
    print(Motion, tag='chart')
    ```
    
    or if a generic show method was created as a helper (i realize you have 
`.z.show.googleVis(Motion)`, but it feels like this could be generalized for 
users and we only need to deal with the `%r` interpreter.
    
    ```
    %r
    
    library(googleVis)
    Motion=gvisMotionChart(Fruits, idvar="Fruit", timevar = "Year")
    z.show(Motion, tag='chart')
    ```
    



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