Opened 9 years ago

Last modified 9 years ago

#444 new defect

Rethink MultiIMR.getMean()/getStdDev() averaging

Reported by: Kevin Milner Owned by:
Priority: major Milestone: OpenSHA 1.4
Component: sha Version:
Keywords: Cc:


Currently the MultiIMR implementation averages mean/std dev in natural log space. Peter thinks that it should be done in linear space, and that it doesn't really make sense to average these quantities anyway. This isn't used in hazard calculations (which use getExceedProbabilities). I see the options as:

  1. leave as is (log space averaging) - probably least desireable
  2. switch to linear space averaging
  3. have methods throw an UnsupportedOperationException?

Change History (1)

comment:1 Changed 9 years ago by Kevin Milner

Milestone: OpenSHA 1.3OpenSHA 1.4

leaving open to keep discussion open. not an issue as IMR's are currently used which averages exceedence probabilities instead of means/std devs.

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