Quadratic regression Calculator
Analyzes the data table by quadratic regression and draws the chart. | |||
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| Guidelines for interpreting correlation coefficient r : 0.7＜|r|≦1 strong correlation 0.4＜|r|＜0.7 moderate correlation 0.2＜|r|＜0.4 weak correlation 0≦|r|＜0.2 no correlation |
Quadratic regression
| [1-10] /113 | Disp-Num |   |
- Purpose of use
- regression of data points for portfolio analysis.
want to derive a figure of merit for holdings in my portfolio.
[1] 2022/09/30 14:52 60 years old level or over / A retired person / Very /
- Purpose of use
- trigonometry
[2] 2022/09/12 05:36 Under 20 years old / High-school/ University/ Grad student / Useful /
- Purpose of use
- Analysing calibration errors of open-loop control for a utility scale battery energy storage system
[3] 2022/06/17 00:39 50 years old level / An engineer / Very /
- Purpose of use
- alcohol by volume vs density chart to formula constants computation
[4] 2022/06/08 17:58 30 years old level / An engineer / Very /
- Comment/Request
- no bugs but id like to be able to zoom in on the graph
[5] 2022/02/24 06:45 - / - / - /
- Purpose of use
- Fitting reported pump flow-rate vs head curve
[6] 2022/01/08 02:03 30 years old level / An engineer / Very /
- Purpose of use
- To approximate a Sine curve with a quardric equation to generate a signal for a computer music system. Also to see if you can use this to calculate sine values using two quadratic equations with one of them being the correction value add to the other to get it. I think this would a fast to calculate Sine values than the Taylor -Mac series this would be faster.
I hoping this works.
[7] 2022/01/01 06:35 60 years old level or over / High-school/ University/ Grad student / Useful /
- Purpose of use
- calculate expected Token in a crypto coin IDO
- Comment/Request
- thank you
[8] 2021/12/27 01:51 30 years old level / High-school/ University/ Grad student / Useful /
- Purpose of use
- checking site's analysis vs LibreCalc. Had 1000 data pairs, very useful to show that despite a seemingly very high fit correlation, as one fits subsets toward the higher end, one quickly realizes that rather than 1.0x^2+3x (this site found ~1.0x^2+x ), the true fit is tending toward x^2. Ref OEIS A349791.
- Comment/Request
- Would love to be able to force intercept (A)=0
[9] 2021/12/19 03:37 60 years old level or over / A retired person / Useful /
- Purpose of use
- Constructing a parabolic path water fountain going through certain structures (points)
[10] 2021/12/07 11:02 30 years old level / An engineer / Very /
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