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CaptainMack avatar CaptainMack commented on August 15, 2024 1

@tablatronix how do you suggest this can be fixed? I am having similar problems with std.Dev returning nan (I believe actually also mean, so might be a separate problem)

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tablatronix avatar tablatronix commented on August 15, 2024 1

Sorry I totally forgot about this, I think I just patched it or made a wrapper that catches it , Ill try to look again and see.

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tablatronix avatar tablatronix commented on August 15, 2024

Also get crashes in mean(), might need some sanity checks all around, ill PR if I get time

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tablatronix avatar tablatronix commented on August 15, 2024

Looks like its stdDeviation that blows up because variance can be NAN.

as mRefVariance approaches sqr(mean()) variance can be negative

add data 23.75
variance()
...
return (5640.81 - (10 * 564.08)) / 10
return (5640.79 - (10 * 564.08)) / 10 // -0.001
return nan

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CaptainMack avatar CaptainMack commented on August 15, 2024

Hi @tablatronix just chiming in to see if you found the patch! I just had another case of std returning NaN ;-)

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tablatronix avatar tablatronix commented on August 15, 2024

Yeah I did not fix it, I just check for isnan() in my code, I will see if I can undo that and reproduce again sinc eits been so long.

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