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hanhy / lkp-analysis

Linux kernel performance analysis
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Some errors with the Pearson Correlation. #1

Open hanhy opened 8 years ago

hanhy commented 8 years ago

Some Pearson Correlation is bigger than 1, and many of that is 2.0(-2.0)

hanhy commented 8 years ago

This is because some metrics only have one test, and that is pointless. I have to set a value so that only metrics whose size is bigger than it can be calculated. This value was first set as 1000 as the KPI size is 5238.