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calculate the total percentage of outliers for a process of several properties combined
Mar 26, 2024 08:36 AM(3835 views)
I am trying to calculate total yield of a process. The process will decide several properties of a product. For any one of the product that comes out from this process, if any one of these properties falls outside the limits we target for, then this product should be counted as a outlier. I found it convenient to calculate the outliers for each of the single property alone, but I did not find a way to calculate the percentage of the outliers that is defined by those which violate any one of the list of properties combined. Is there a way to do this for multi-property process?
Re: calculate the total percentage of outliers for a process of several properties combined
Created:
Mar 26, 2024 11:04 AM
| Last Modified: Mar 26, 2024 8:12 AM(3814 views)
| Posted in reply to message from gfke 03-26-2024
Have you tried displaying the statistics associated with the Distribution platform? If you enter the spec for each column, you can get numerous summary statistics.
Commentary you can ignore....Your definition of "outlier" is the data point falls outside the "spec limits". This is not a statistical definition of an outlier as the spec limits are derived independent of the true process variation. Why not use the actual measured values instead of converting it to a categorical (e.g., nominal) value? This would provide much more information.
"All models are wrong, some are useful" G.E.P. Box