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thorrak
ABV Starting Gravity
Minor issue but it appears the ABV estimate when using a tilit can be disrupted but a single erroneous datapoint? It looks like it took the highest value of 1.107 as the original gravity the when it should be 1.064 as shown at the start. I would think an average of the starting points would be more accurate as the original gravity?
Thanks Brian
Looks like starting value was fine but rather something occurred a couple days later that caused it to spike. I would edit the textfiles by hand to remove this value.
FWIW, There is a use case here for allowing manual setting of OG. For me, my Tilt is not well calibrated and frankly, I don't care. I use it mostly to track fermentation progress - looking for terminal gravity. I'd love to be able to set the OG manually. It would also allow us to fix issues like the above. If OG gets out of whack - change it.
I would second this use case. Funny enough, just this weekend I finally calibrated my Tilt for the first time in over a year, but prior to that I definitely could/would have used this feature... but from an implementation standpoint, this may not be possible because how do you modify new values as they come in, etc etc... What I've seen from the uncalibrated Tilt is that the lower values are extremely accurate, but get further off and further off (exponentially) as gravity increases. I'm not @thorrak but I don't think this is something that is technically possible.
I guess my point was this that one bad sample makes the OG nuts high. That said - I agree that the tilt can / should solve that.
On Mon, Dec 28, 2020 at 6:17 PM Geo [email protected] wrote:
I would second this use case. Funny enough, just this weekend I finally calibrated my Tilt for the first time in over a year, but prior to that I definitely could/would have used this feature... but from an implementation standpoint, this may not be possible because how do you modify new values as they come in, etc etc... What I've seen from the uncalibrated Tilt is that the lower values are extremely accurate, but get further off and further off (exponentially) as gravity increases. I'm not @thorrak https://github.com/thorrak but I don't think this is something that is technically possible.
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The software already allows for adding data points for the Gravity graph so there is a model for doing this already. But, if we are smoothing gravity points, a single data point might need special handling.
I have fixed this by editing the data file and adding few points at the beginning of the file.
\Greg
From: BrianBackermailto:[email protected] Sent: Monday, December 28, 2020 6:56 PM To: thorrak/fermentrackmailto:[email protected] Cc: uSlackrmailto:[email protected]; Commentmailto:[email protected] Subject: Re: [thorrak/fermentrack] ABV Starting Gravity (#438)
I guess my point was this that one bad sample makes the OG nuts high. That said - I agree that the tilt can / should solve that.
On Mon, Dec 28, 2020 at 6:17 PM Geo [email protected] wrote:
I would second this use case. Funny enough, just this weekend I finally calibrated my Tilt for the first time in over a year, but prior to that I definitely could/would have used this feature... but from an implementation standpoint, this may not be possible because how do you modify new values as they come in, etc etc... What I've seen from the uncalibrated Tilt is that the lower values are extremely accurate, but get further off and further off (exponentially) as gravity increases. I'm not @thorrak https://github.com/thorrak but I don't think this is something that is technically possible.
— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/thorrak/fermentrack/issues/438#issuecomment-751893062, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABGKJVNM3HVKB6YOFT5LN3LSXEGYHANCNFSM4LJCHIGQ .
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