Stacked bars with percentages

[Hans Rahr]

The image shows a graph which should allow visual comparison of the percentage of success between 3 treatments. I used the menu system and have ended up with this graph although I wish to have the bars side by side in one frame. However, as soon as I change anything, I end up with unstacked bars and/or the y axis changes to show the number of observations instead of the percentage. How can I get the three stacks of bars amounting to 100 % to be shown side by side in one graph?

My current code is:

graph bar, over(kolRes) asyvars stack by(, title("Success, by Treatment")) ytitle("Percentage") legend(order(1 "Success" 2 "Failure" 3 "Unknown")) by(Treatment_type)

Bonus question: How do I get rid of the footnote about "Graphs by.."? I have tried to make its opacity 0%, but it still comes through in the .wmf file I use for export to PowerPoint.

Thanks, Hans

[William Lisowski]

Welcome to Statalist.

If you change

by(Treatment_type)

to

by(Treatment_type, rows(1) note(""))

I believe it will resolve both of your concerns.

[Hans Rahr]

It works great!
Thank you very much
Hans

[Nick Cox]

I have to say that this bar chart isn’t much of an improvement on a 3 x 3 table, which could show the frequencies as well as percentages of interest. Presumably success and failure are of most concern, but given a decision to show unknowns too, they should at least be shown clearly.

The forum includes several posts on tabplot (Stata Journal /SSC) which could give you a hybrid graph and table.