Questions on (linear or nonlinear) regression, the fitting of functions that best approximate empirical data.

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1answer
633 views

How to work out orthogonal polynomials for regression model

I put this question here as it has a pure maths element to it, even though it has a statistical twist. Basically, I have been given the table of data: $$\begin{matrix} i & \mathrm{Response} \, ...
-1
votes
2answers
127 views

Proving that the estimate of a mean is a least squares estimator?

I think this is a really simple question so please bear with me -- I just had my first class in regression and I'm a little confused about nomenclature/labeling. Does anyone recommend some good ...
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votes
0answers
20 views

Repeated measurements for multiple groups with multiple samples

I have 4 groups with 5-6 samples in each, and I have repeated a measurement on them 6 times over a time. This is done during an aging test and the results are evolving over the time roughly linearly. ...
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votes
2answers
171 views

Guess the functional form of a graph

Can you guess the functional form of the following curve y is 0 at x= Infinite ; y is very small ( +ve near to zero) at x=0 Thanks and regards