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[David Dumortier <question214249@xxxxxxxxxxxxxxxxxxxxx>]

New question #214249 on Graphite:
https://answers.launchpad.net/graphite/+question/214249

The use of holtWintersAberration functions on graph return an error, for example for holtWintersAberration(MyDatas,3) I have :
TypeError: unsupported operand type(s) for -: 'float' and 'NoneType'
And the nested question is, what is the delta parameter ? (not mention in the documentation and I can't link it to any Holt-Winter parameter.

Thank you in advance.

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