However, a control chart is being used at the initial stage to see the process behavior or If we do not have a Minitab, we can make it in Excel. Assuming you're using MiniTab, when in the I-MR menu, select I-MR Options, click on the stage tab, and enter the point where you made the. The options from the Tools menu of Minitab can be used to set the The default display option for a staged control chart is to show only the. Use stages to create a historical control chart that shows how a process By default, Minitab recalculates the center line and control limits for each stage. Healthcare Quality data has a long history of using Control Charts with Stage analysis. In the past this has been done with SAS or Minitab. Stages are used to create a historical control charts that shows how a process changes over specific time periods. At each stage, Minitab. Stat > Control Charts > Variables Charts for Individuals > I-MR > I-MR Options By default, Minitab recalculates the center line and control limits for each stage.