Just like the title says. How do you handle SPC of unilateral tolerances. Is there a way to apply a weibull distribution to data analysis
within DataPage?
You can have it calculate a CORRECT Pp/Ppk Cp/Cpk with a unilateral tolerance WERE it is possible for the readings to go 'beyond' zero, ie Surface with a tolerance of +1/-0, you CAN get negative values. It will NOT work for TP (which IS a unilater tolerance) because you can never get a negative reading.
OPTIONS
SPC CALCULATIONS
CAPABILITY THRESHOLD
There is a box to mark for Cp/Pp for unilateral tolerance, mark it.
You can have it calculate a CORRECT Pp/Ppk Cp/Cpk with a unilateral tolerance WERE it is possible for the readings to go 'beyond' zero, ie Surface with a tolerance of +1/-0, you CAN get negative values. It will NOT work for TP (which IS a unilater tolerance) because you can never get a negative reading.
OPTIONS
SPC CALCULATIONS
CAPABILITY THRESHOLD
There is a box to mark for Cp/Pp for unilateral tolerance, mark it.
