Timeline for Find Equation for Line Bounding Bottom of Scatter Plot
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jan 12, 2022 at 16:31 | comment | added | mathemagician617 | @flinty thank you | |
| Jan 11, 2022 at 7:59 | comment | added | Ulrich Neumann |
@flinty Where did you find Method -> "Procedural" ?
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| Jan 10, 2022 at 10:33 | comment | added | flinty | @mathemagician617 in what way is it not working well? I took your changes and they produce an upper bound which is mostly okay on the right but too conservative on the initial left slope. If the fit is the problem, you should probably look for a better model for the upper bound, and your data are heteroskedastic which is a common cause of problems in regressions. | |
| Jan 9, 2022 at 15:52 | comment | added | mathemagician617 | I'm now trying to change this to an upper bound. It isn't working well currently. Do you have any suggestions? I've modified the code by changing the residual function to this: residual[f_, data_, penalty_] := Sum[With[{fy = f[p[[1]]], y = p[[2]], x = p[[1]]}, Piecewise[{{(y - fy)^2, y <= fy}}, Exp[penalty*(y - fy)]]], {p, data}, Method -> "Procedural"] | |
| Jan 6, 2022 at 23:01 | vote | accept | mathemagician617 | ||
| Jan 6, 2022 at 22:54 | comment | added | mathemagician617 | Thank you very much this was very helpful | |
| Jan 6, 2022 at 22:42 | history | edited | flinty | CC BY-SA 4.0 |
added 204 characters in body
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| Jan 6, 2022 at 22:29 | history | answered | flinty | CC BY-SA 4.0 |