The oneway analysis platform does not respect the preference setting of means diamonds. I have deselected it in preferences and it always is presented, requiring me to turn it off.
I had previously reported this bug and it must by close to 20 years ago. This bug is now old enough to vote. It is still in JMP 16 and technical support says yes we know about it and basically "we have no intention of fixing it."
If you guys want me to keep paying for your product you might want to fix some of the bugs.
Andy