Classic Shewhart Control Chart

SPC-PC IV offers the following charts for variable data:

• X Bar / Range The classic Shewhart control chart, with provisions to:
  • Allow missing or deleted data, adjusting control limits accordingly.
  • Permit control and/or warning limits at the user-specified sigma level.
  • Automatically exclude out of control points from calculations, at the user’s option.
  • Include the effect of Western Electric, Nelson, and user-defined Run Tests.
  • Perform Short Run Analysis.
  • Set multiple ranges for control, so process changes can be controlled to their new level.

  For More Information about Variable Charts from SPCPCIV