Process capability with subgroups of varying sizesHello, in the Distribution platform, I aim to do a capability analysis of the column "Termintreue (%)", along with the column "Month" as Subgroup ID column. I want to get the sigma Z values for within and overall sigma.
The subgroup size varies. Anyway, I cannot find a way to use a subgroup ID column. I tried several modifications to the subgroup column, even with making it equal sizes, but with no success.
How can I do that?

Re: Process capability with subgroups of varying sizesHi Maria, to do process subgrouping you have to use the process capability platform under analyze/quality. This is not available from the distribution platform. Hope this helps.
Re: Process capability with subgroups of varying sizesHi Pete,
thank you for your reply. Below is what my screen looks like in the Process Capability platform (JMP 18.1). There appears no field for grouping like in yours:
Any idea?
Also, I might be wrong and mix things: I would have bet I have done it in the Distribution platform.
Re: Process capability with subgroups of varying sizesOpen the box called process subgrouping and that will allow you to add group.
Re: Process capability with subgroups of varying sizesPete, let's talk on the phone about this. My menu still looks different from what yours is showing.