I have a bar graph like this
I want to separate the bars in groups of 3. How to achieve that? (I want DDP125,DDP126,DDP127 in one group and then DDP128, DDP129, DDP130 in another group.)
If you are calling here one dimension and one expression that I don't think so it is possible to divide group based on sequence.
Also check if stacked bar can help you here or not.
I am agrree with Avinash.but if you want distance between Bar
go to chart properties-> presentation-> bar distinace and clutered Distance
increse decrease as per you conveniyance