I have made a basic bar chart in Visual Analytics and the default for the x-axis label is the variable name, but I was wondering if there was a way to create a custom label for this axis without having to rename the variable?
It might help to provide your code but generally if your variable has a label associated that would be the axis label. If you do not have a label then try adding something like:
label axisvariablename='Text you want as the axis label';
to the graphic procedure. of course axisvariablename should be the name of your variable.