Why do you use horizontal bar charts
AddMaple is designed to work with any data source - this includes data where column names or items of data may be long, or where there are many possible values for a column.
1Horizontal bar chart with long response labels in AddMaple
In the above example, we can see that it is easy to read "United Kingdom of Great Britain and Northern Ireland". A vertical layout would make it hard to handle such long pieces of text.