raptop changed the topic of #kspacademia to: https://gist.github.com/pdn4kd/164b9b85435d87afbec0c3a7e69d3e6d | Dogs are cats. Spiders are cat interferometers. | Космизм сегодня! | Document well, for tomorrow you may get mauled by a ネコバス. | <UmbralRaptor> egg|nomz|egg: generally if your eyes are dewing over, that's not the weather. | <ferram4> I shall beat my problems to death with an engineer. | We can haz pdf
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<bofh> egg|zzz|egg: hm.
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<egg|cell|egg> Bofh: I haz phone
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<egg|work|egg> meow
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<egg|work|egg> bofh: have you found any eggsplanation of https://stats.stackexchange.com/a/274672?
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<UmbralRaptop> So we're down below 3 9s of all time uptime. >_<
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<kmath> <✔Alex_Parker> I’ve taken to writing with my door closed, so I put a new status up. https://t.co/ERoqqb13F9
<egg|zzz|egg> bofh: meow
<egg|zzz|egg> bofh: meeeeow
<UmbralRaptop> Apparently GMU has a pair of 12" SCTs, and a 12" RCT literally just lying around, with no easy way to set up for public nights. o_O
<egg|zzz|egg> UmbralRaptop: just set them up for yourself? :-p
<egg|zzz|egg> bofh: meeow
<UmbralRaptop> Yes, I'll just walk off with a kitten that outmasses me by at least 20%.
<egg|zzz|egg> UmbralRaptop: have you tried petting the giant kittens
<UmbralRaptop> Not really. They don't seem very fuzzy.
<UmbralRaptop> ;8ball Should I attempt to convince Ellied to shoot FITS instead of JPG or RAW?
<kmath> UmbralRaptop: As I see it, yes
<egg|zzz|egg> FITS!
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<UmbralRaptop> There's no reason you couldn't do something intensely cursed like make a camera that saves its output as ODS or XLS files.
<egg|zzz|egg> bofh: hmm
<egg|zzz|egg> bofh: that's a garbage estimator of the error of the mean on something that's actually strongly periodic tbh
<egg|zzz|egg> bofh: https://imgur.com/a/I32ncJT
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<bofh> egg|zzz|egg: ?
<egg|zzz|egg> bofh: the autocorrelation-based estimator of the standard deviation of the average is garbage when it's actually a periodic signal
<egg|zzz|egg> bofh: eggsample: https://i.imgur.com/94O8MOY.png
<bofh> ugh, wait, actually that makes sense, since the standard deviation of the average for a periodic signal will be garbage itsself.
<egg|zzz|egg> bofh: not that much, see the graph
<egg|zzz|egg> bofh: much shittier than independent measurements, of course
<egg|zzz|egg> but nowhere near what that estimator says
<bofh> oh *wow*
<egg|zzz|egg> bofh: which makes sense, that autocorrelation estimator is "what if марков chain glhf" but I can say much more about my signal, not sure how though
<egg|zzz|egg> bofh: note, the left-hand side of the graph is when we don't have a full period, the function is sin(0.01t) + cos(0.003t) here, so the giant error and terrible error estimates aren't interesting yet
<egg|zzz|egg> but after 2 π hundred or so, the error of the average is not that bad
<egg|zzz|egg> bofh: how do i estimate it though
<egg|zzz|egg> bofh: "what is the standard deviation of the average of *periodic thing* (or linear combination of a handful of periodic things)" has to be a well-known problem, but I can't find anything
<egg|zzz|egg> the BIPM isn't helpful in that Evaluation of measurement data – Supplement 3 to the "Guide to the expression of uncertainty in measurement" – Modelling is still in preparation
<egg|zzz|egg> bofh: UmbralRaptop: meow
<bofh> 22:45:01 <@egg|zzz|egg> bofh: how do i estimate it though
<bofh> that's a trickier question than you seem to think :p
<egg|zzz|egg> meow
<UmbralRaptop> Horribly abuse a beta distribution?
* UmbralRaptop scritches egg|zzz|egg
<bofh> UmbralRaptop: I mean the answer to a lot of questions in stats is "horribly abuse a \Beta distribution", but that's often patently vile.
<UmbralRaptop> fair
<egg|zzz|egg> <bofh> that's a trickier question than you seem to think :p << yes but it sounds like it should be a fairly common one?
<egg|zzz|egg> bofh: something something spectral analysis something
<egg|zzz|egg> bofh: is there a way to get error estimates from the prefect of the Department of Isère