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Jacobian of a Variance-Covariance Matrix

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#matrix-calculus #covariance #jacobian
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Autocovariance of Ornstein–Uhlenbeck and AR (1) processes

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#covariance #time-series
244
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Vector components vs coordinates?

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#vectors #coordinate-systems #covariance
228
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covariance of gaussian random process

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#probability #random-variables #normal-distribution #random #covariance
176
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Is the off-diagonal part of a covariance matrix, $M = \Sigma -\operatorname{ diag}(\Sigma)$ studied?

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#eigenvalues-eigenvectors #covariance
656
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Why does the identity $\mathbb{E}(X) = \mathbb{E}\left(\int \mathbb{1}_{u \leq X}du\right)$ hold?

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#probability #probability-theory #expectation #covariance
131
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Variance and covariance matrix

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#probability #matrices #normal-distribution #covariance #variance
82
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Finding "covariance matrix"

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#probability #normal-distribution #covariance #variance
44
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Understanding the covariance definition

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#probability #integration #statistics #multivariable-calculus #covariance
44
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finding the common variance of a die throw

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#probability #statistics #discrete-mathematics #covariance
131
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finding efficiently the correlation cofactor in probability

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#probability #statistics #discrete-mathematics #covariance
237
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Prove $\operatorname{Cov}(\overline{X_n}, X_j - \overline{X_n}) = 0$ for independent normally distributed random variables

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#normal-distribution #covariance
64
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Why does $C(s,t)=\min(s,t)$ mean it is not the wide - sense stationary?

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#probability #stochastic-processes #covariance #stationary-processes #wiener-measure
4.4k
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Why does the Eigen decomposition of the covariance matrix of a point cloud give its orientation?

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#geometry #eigenvalues-eigenvectors #covariance #point-cloud
175
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Demonstration of covariant derivative of a vector along another vector

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#differential-geometry #tensors #covariance

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