Simple BoxPlot not showing in the R and Python Visuals

[Anonymous]

I am trying to create an R visual (boxplot) in my Power BI desktop app.  Here is a one liner from R that creates the boxplot:

boxplot(mpg~cyl,data=mtcars, main="Car Milage Data", 
   xlab="Number of Cylinders", ylab="Miles Per Gallon")

Note that this uses the built in mtcars dataset that is available out of the box with each R install.  this works fine in R and shows the boxplot.

Note that I know how to import this dataset into R/Python by going to Other sources and picking either R or Python Scripts.  For R as an example, I entered:

df <- mtcars

And connected to the datasource before proceeding to build the Visual.  I can see the fields belonging to this dataset in the 'query' pane and dragged the fields that I am interested in, i.e., mpg and cyl in the Values Box. Which makes them available in the "dataset" dataframe, so the aforementioned one liner becomes:

boxplot(mpg~cyl,data=dataset, main="Car Milage Data", 
   xlab="Number of Cylinders", ylab="Miles Per Gallon")

However, when I try to show it as an R Visual Custom control, all I get is a line within a frame and no boxes.  My desktop is the latest October release of Power BI (2.63.3272.40461 64-bit (October 2018)

I get no error messages.  Same thing is happening to the Python Seaborn boxplots.

Please advise.

Thanks.

Bharat

[v-yulgu-msft]

Hi @Anonymous,

Did you get a blank visual with above R code on report page? Can you show us a screenshot of result? Also, please test the sample in this blog to see if it works.

Regards,

Yuliana Gu

[Anonymous · Accepted solution]

I figured it out.  Any numeric variable that you are trying to plot must have 'Do not Summarize' checked instead of 'Sum' which Power BI does by default.  Once I did that, the boxplot appeared fine.  I think that the default in Power BI must be changed.