covariance
covariance
Definition
co·vari·ance (kō′ver′ē əns, kō′ver′-)
noun
Statistics a measure of the relationship between two variables whose values are observed at the same time; specif., the average value of the product of the two variables diminished by the product of their average values
covariance Finance Definition
A
statistical tool that measures the likelihood of two random variables moving
together.
covariance
Usage Examples
Preposition: of
- variable: A wire is a line, usually curved, used in a path diagram to represent variances and covariances of exogenous variables.
Converse of object
- use: We therefore propose that the GEM approach be applied to adaptation of hidden Markov models which use non-diagonal covariances.
- specify: For example, returns the covariance specified between the elements and in belief store 1, .
- calculate: Calculate the inverse covariance of the full Gaussian, and use the partitioned inverse equations to obtain the covariance for the known data.
Adjective modifier
- adjusted: For each pair of elements in the base B, say, we store their adjusted covariance, .
- general: These reflections show at the same time how natural the demand for general covariance is.
- low: This lower covariance should make REITs a better diversification investment vehicle.
- average: The incremental average covariance and the incremental realized variance are found to be negative during the 1987 crash and the 1992 ERM crisis.
- full: Support for diagonal and full covariance Gaussian mixture HMMs.
- non-diagonal: We therefore propose that the GEM approach be applied to adaptation of hidden Markov models which use non-diagonal covariances.
Modifies a noun
- matrix: The fourth option allows the user to specify a variance covariance matrix for the shocks.
- structure: To be useful this model would have to take into account the spatial covariance structure.
- function: Then we can sample from these models to choose a single model, from which an exact covariance function can be calculated.
- model: A simulation experiment is conducted for covariance structure models.
- analysis: It can perform various statistical analyzes on these including 2 forms of covariance analysis.
- term: The variance is computed using the formula ( 6.26 ) The missing covariance terms are positive, so eq.
Noun used with modifier
- eddy: The original calibration and corroboration of the SPA model was against long-term eddy covariance data from the Harvard Forest, Massachusetts.
- variance: The fourth option allows the user to specify a variance covariance matrix for the shocks.
- error: At update times, the error covariance is calculated from the ensemble.
- sample: In the case where spatial information is available, this is encoded in the estimation of the sample covariance matrix.
Browse dictionary entries near covariance
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