See http://community.plot.ly/t/grouped-bar-chart-leaves-gap-when-a-trace-has-missing-element-for-a-one-or-more-xaxis-tick/2078 for more context info.
Maybe we should add a new barmode e.g. 'grouped-no-gaps' ?
+1
grouped no gaps would be very nice for my particular application. Ties my hands a bit if I have to force that all groups have values for all X-values. Current workaround for me is to make custom x-axis label (e.g., if you have x values A, B, C, D and groups (i.e., traces) 1,2 - I make new groups --> A1, A2, B1, B2, C1, C2, D1, D2, apply custom colors so that 1,2 are different colors. It works, but the x-axis labels get very cluttered.

Any updates on this issue?
Thanks and have a nice day.
Most helpful comment
Any updates on this issue?
Thanks and have a nice day.