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Function from plot - Сообщения
#1 Опубликовано: 06.06.2023 08:19:33
#2 Опубликовано: 06.06.2023 08:59:59
WroteHow can I get a function from this plot ?
1. Probably from the expensive digitizer suggested by Richard [Mathsoft Collaboratory]
2. Piecewise from Tracer.
3. Try Mathsoft digitizer.
4. Smath difficult
At this point from the collected data set, fit a model function.
Cheers ... Jean.
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Valery Ochkov 06.06.2023 10:24:00
#3 Опубликовано: 06.06.2023 10:05:20
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Valery Ochkov 06.06.2023 10:24:00
#4 Опубликовано: 06.06.2023 10:15:02
Greetings,
That is a straight line on a semi-log graph; you can reference this handout: https://inside.mines.edu/~epoeter/_GW/LAB/EquationsOfStraightLinesOnDifferentTypesGraphPaper.pdf
Per this handout, your equation should be where:
May this be of Good Help;
⚜ Kenny Lemens, P.E. ᵂᴵ
WroteHow can I get a function from this plot? 🖼
That is a straight line on a semi-log graph; you can reference this handout: https://inside.mines.edu/~epoeter/_GW/LAB/EquationsOfStraightLinesOnDifferentTypesGraphPaper.pdf
Per this handout, your equation should be
y = b + m*log(x)
- m = difference in y over one log cycle of x
- b = y value corresponding to x=1
May this be of Good Help;
⚜ Kenny Lemens, P.E. ᵂᴵ
"No matter where you go, there you are." -Buckaroo BanzaiHotkeys: https://en.smath.com/forum/resource.ashx?a=45771&b=2
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Valery Ochkov 06.06.2023 10:24:00
#5 Опубликовано: 06.06.2023 12:44:34
WroteHow can I get a function from this plot?
Hi. You can try this post Approximation of a functional curve in a digital image or this other one: Embedding images into a plot
Best regards.
Alvaro.
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#6 Опубликовано: 06.06.2023 14:19:52
WroteHow can I get a function from this plot ?
Hello Valery,
some Smath digitizing utilities
Cheers, Jean.
Digitize Tracer 15.sm (28 КиБ) скачан 27 раз(а).
Digitize OVNI Copy.sm (69 КиБ) скачан 18 раз(а).
Digitize Contour Isocurve Himmelblau Copy.sm (106 КиБ) скачан 24 раз(а).
Digitize Curve.sm (295 КиБ) скачан 22 раз(а).
Digitize Contour.sm (829 КиБ) скачан 21 раз(а).
Digitize Clean_Strip_Smooth.sm (1 МиБ) скачан 21 раз(а).
#7 Опубликовано: 06.06.2023 15:29:30
... this Himmelblau has resident Gray matrix.
Digitize Contour Isocurve Himmelblau Copy.sm (107 КиБ) скачан 24 раз(а).
Digitize Contour Isocurve Himmelblau Copy.sm (107 КиБ) скачан 24 раз(а).
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Valery Ochkov 07.06.2023 01:02:00
#8 Опубликовано: 06.06.2023 17:11:16
Hi. Hope this helps.

Modeling a functional curve in a digital image.pdf (860 КиБ) скачан 41 раз(а).
Modeling a functional curve in a digital image.sm (1 МиБ) скачан 44 раз(а).
Best regards.
Alvaro.
Modeling a functional curve in a digital image.pdf (860 КиБ) скачан 41 раз(а).
Modeling a functional curve in a digital image.sm (1 МиБ) скачан 44 раз(а).
Best regards.
Alvaro.
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