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PI compressing algorithm questions

Question asked by martin.mertens on Mar 23, 2016
Latest reply on Apr 4, 2016 by Charles Henze

Hi,

 

following OSIsoft: Exception and Compression Full Details - YouTube, I have some questions:

 

  • is there any code or pseudo-code snippet available for the "real", slope-based compression?
  • if I reprocess old archive values by using exactly the same compdev value as used when creating the archive, could this lead to a further reduction of archive values? This is exactly what I experience when simulating this algorithm using my own code.

 

Thank you!

 

Martin

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