Bad Data Handling

Each SPC chart allows you the option of excluding bad data. Data that is marked as bad is excluded from analysis, and therefore gives you a more accurate report on the stability of a process. When data is excluded, all control limits and descriptive statistics are recalculated, and alarm rules (if they are used) are re-executed. There are two ways to exclude bad data:

NOTE: Bad data handling does not apply to the Correlation chart.