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open-psa / mef

The Open-PSA Model Exchange Format
https://open-psa.github.io/mef
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Add support for reporting histogram (density) #35

Open rakhimov opened 7 years ago

rakhimov commented 7 years ago

This modifies the "quantiles" schema to support bins similar (but not the same) to the MEF input. The distribution/frequency of the data is meant to be in the histogram as a statistical measure for reporting.

It would be somewhat beneficial if histogram reporting schema matched exactly the input histogram-distribution (deviate) schema since the semantics is the same.

cfolleau commented 7 years ago

From the result point of view, quantile are histograms (but with the same value for each interval since it is the definition). If we want to be more general for the result provided by Motecarlo Simultation, histogram could replace quantile. But if people want to keep the word "quantile" because it is more mathematically correct, no problem.

rakhimov commented 7 years ago

@cfolleau I think you are right. I find both of them necessary/useful to calculate and report. Correct me if I am wrong, but quantiles mask out the shape of the distribution. The histogram derived from the quantiles is just boring flat line with each bin having the same weight but different size; Histograms, on the other hand, reveal the shape of the density.

cfolleau commented 7 years ago

yes exactly