# Questions tagged [regression]

Regression analysis is the process of measuring and establishing a relationship between a dependent variable and one or more independent variables.

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### Preconditioning vs. regularization

I used to be more of a numerical linear algebra and computational science person, but recently, I've crossed into stats and machine learning. For this discussion, let's focus on matrices that are not ...
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### Methods to Estimate Optimal Distance Measure for Multidimensional Data Set

My problem at hand pertains to choosing a distance measure for use in locally weighted regression. In my particular problem, I have a data set that is upwards of 10 dimensions, where the variables ...
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### Numpy.polyfit with regularization

I am trying to use the numpy polyfit method to add regularization to my solution. My non-regularized solution is ...
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### fitting exponential versus exponential w/ power

I have two models which I would like to investigate for my data. One form is: $$\label{one} f(r) = A e^{-B r}$$ and the second is: \label{two} g(r)...
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### Fitting 2D mapping data from multiple measurements

Given a set of points in a plane, and series of measurements of the distances between those points, how would I go about generating a best-fit model of the position of the points? For example, given ...
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### How do I correctly multiply vectors and matrices in Python and MATLAB?

I have been trying for 2-3 days now to get L2 regularized logistric regression to work in Matlab (CVX) and Python(CVXPY) but no success. I am fairly new to convex optimization so I am quite frustrated....
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### Neural network performs worse when using more input variables

This question is based more on the theory of neural networks than my particular implementation. Therefore I will leave out my code unless requested. I'm working on a project in C# which can create ...