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Results tagged with modeling
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user 35584
This tag describes the process of creating a statistical or machine learning model. Always add a more specific tag.
4
votes
Accepted
Which kind(s) of curves should I use to fit these data?
I found a simple 3D equation which seems to fit the data OK, see the fit statistics and plots below:
RESPONSE = a * pow(COV1,b) * pow(COV2,c) + Offset
Fitting target of lowest sum of squared absolut …
- 1,216
0
votes
Accepted
How do I use regression to model 3 IVs and 1 DV?
To answer the question in your comments, here is a Python example that will perform multiple regression and plot the errors. This uses non-linear regression so you can experiment with non-linear equat …
- 1,216
-1
votes
Systematic way to determine if a model is linear or nonlinear?
My understanding is that linear (or not) refers to "linear in the coefficients", such that varying any parameter will linearly vary that part of the equation. For example, if you double A or B in the …
- 1,216
4
votes
What kind of curve (or model) should I fit to my percentage data?
I extracted the data from your scatterplot, and my equation search turned up a 3-parameter logistic type equation as a good candidate: "y = a / (1.0 + b * exp(-1.0 * c * x))", where "x" is the log bas …
- 1,216