g Chart Formulas

g charts evaluate process stability when tracking rare events:

  • surgeries between infections
  • days between accidents (safety)
  • days between wrong site or wrong patient surgeries

g chart formula

g chart formula

Center Line = 0.693*gbar

g = time or units between rare occurrences

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The g chart is just one of the tools included in the QI Macros for Excel SPC Software for Excel.


Why Choose QI Macros Over Other Control Chart Software?

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Easy to Use

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