isadoranun / FATS

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von Neumann variability index #12

Open QuinnAsena opened 4 years ago

QuinnAsena commented 4 years ago

Hello Isadora,

I have come across your FATs paper (in a very different field!) while developing metrics for a Fisher's Information time-series on ecological data. I'm looking at the Variability index n^e (pictured) and the python code provided.

image

I have a question about one line in the code that is the final calculation: https://github.com/isadoranun/FATS/blob/master/FATS/FeatureFunctionLib.py#L734

In the code the denominator has a term N ** 2 which I don't see in the pictured equation. I'm recoding the equation in R and am wondering where the N ** 2 term comes from?

If you are wondering how someone in ecology ended up in the astrophysics literature, I'm trying to condense information that looks like this (shortened model data sample):

image

into a suite of single metrics as there will be a thousand model runs to compare.

Thanks very much! Quinn