Data set with 300 rows. A column with time between events. Control chart builder doesn't let choose rare events, e.g. T Chart. Only when deleting rows (not just hide & exclude) leaving about 25 rows can rare event be selected.
Many thanks,
How does your data look like (could it be the issue)? For example could you have missing or negative values on your subgroup column?
I managed to create T-chart with 400 rows with no issues (using JMP18)
Thanks. There are no missing nor negatives (nor zeros),
