Using data studio, can we manually change the name of the bars in the bar charts, since each bar by default takes the name of the dataset columns.
Any help regarding this would be appreciated.
It may be that what you are searching for is the idea of renaming fields:
https://support.google.com/datastudio/answer/7000529
Maybe create a sample Data Studio report with sample and either share it with the world and post a link or include some screen shots of what you are seeing. I'm not 100% clear what you mean by "change the name of a bar". If you can show us what you see and describe what you'd like that may help.