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20 views
1
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1answer
38 views

Convert Dates to values on an X axis

I have a bunch of dates and values which I put into the DateListPlot to get a graph. However I would also like to put this information into the Fit or LeastSquares to estimate what the value would be ...
5
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1answer
132 views

FindFit returns “tensors have incompatible shapes”

I'm trying to fit experimental data with FindFit and implicitly calculated function. It seems, that function works fine and satisfactorily approximates data when parameters are fed manually. However ...
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2answers
82 views

Does FindFit use symbolic differentiation?

Does FindFit use symbolic differentiation when optimizing by least squares a non-linear function?
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1answer
137 views

How would I use sliders to manipulate the slope and intercept of a plane in a graphics 3d box while the cdf was running

Would I link a slider value to a polynomial that represents the plane and draw it in the draw plane a function, Or, is there a way that would allow me to have sliders in the draw plane function ...
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0answers
53 views

Is there a way to produce a FittedModel object as the solution to a regularized regression?

I can get the Ridge or Tikhonov regression solution to Y = \[Beta].X easily enough as ...
6
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0answers
152 views

Implementation of Partial Least Squares (PLS)?

I'm looking for a PLS implementation for Wolfram Mathematica. I just cant seem to find any implementation for it - do you know one? In general, I'm a bit confused that there exist only so few ...
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2answers
151 views

Least Square Fitting

stuck on a mathematica assignment and could really use some help. A) Fit a function with the shape log(Y) = a0 + a1log(U) to the datapoints (log(Ui), log(Yi) with an least square fitting. Show this ...
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1answer
94 views

Constraining some rows from LeastSquares to lines

For two matrices, A and B, with dimensions {n,p} and ...