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Basic question on regression analysis

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#statistics #regression
340
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how to decide a variable to be a factor or integer in regression

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#statistics #regression #linear-regression
7.4k
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In linear regression, why is the hat matrix idempotent, symmetric, and p.s.d.?

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#linear-algebra #statistics #regression #linear-regression
750
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Partial Derivative with Respect to Vector Element

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#calculus #derivatives #partial-derivative #regression #machine-learning
28
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An economical case of nonlinear regression. How to approach it?

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#linear-algebra #reference-request #regression #nonlinear-optimization #economics
110
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OLS $\hat{\beta}$ definition

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#statistics #regression #economics #least-squares
137
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What's the algorithm for computing polynomial regression

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#statistics #polynomials #regression #least-squares
809
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Why must the squared error function be at its minimum?

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#proof-explanation #regression #motivation
48
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A question about nonstationary test in time series.

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#regression #time-series #linear-regression #regression-analysis
63
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Can we here derive general expressions for Mean Squared Error and $R^2$?

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#statistics #regression #mean-square-error
38
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Poisson regression, iterative least squares

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#regression #poisson-distribution
471
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Optimality of the MSE in gaussian linear regression

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#statistics #regression #linear-regression
807
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Are there variations on least-squares approximations?

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#linear-algebra #big-list #approximation #regression
14.1k
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easy to implement method to fit a power function (regression)

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#statistics #algorithms #regression
2k
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Polynomial fitting - how to fit and what is _polynomial fitting_

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#linear-algebra #polynomials #regression

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