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Results tagged with covariance
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user 79244
Covariance is a quantity used to measure the strength and direction of the linear relationship between two variables. The covariance is unscaled, & thus often difficult to interpret; when scaled by the variables' SDs, it becomes Pearson's correlation coefficient.
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Interpretation of (diagonalized) inverse covariance matrix
There are several threads here about covariance matrix and inverse covariance matrix interpretation (here, here or here). … 1}
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($\Sigma$ being the covariance matrix and $D$ is a diagonal matrix). …
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