What does semivariance mean?

Definitions for semivariance
semi·vari·ance

This dictionary definitions page includes all the possible meanings, example usage and translations of the word semivariance.


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Wiktionary

  1. semivariancenoun

    A measure of the dispersion of those values that fall below the mean or target value of a data set

Wikipedia

  1. semivariance

    In spatial statistics the theoretical variogram 2 γ ( s 1 , s 2 ) {\displaystyle 2\gamma (\mathbf {s} _{1},\mathbf {s} _{2})} is a function describing the degree of spatial dependence of a spatial random field or stochastic process Z ( s ) {\displaystyle Z(\mathbf {s} )} . The semivariogram γ ( s 1 , s 2 ) {\displaystyle \gamma (\mathbf {s} _{1},\mathbf {s} _{2})} is half the variogram. In the case of a concrete example from the field of gold mining, a variogram will give a measure of how much two samples taken from the mining area will vary in gold percentage depending on the distance between those samples. Samples taken far apart will vary more than samples taken close to each other.

Wikidata

  1. Semivariance

    In spatial statistics, the empirical semivariance is described by where z is a datum at a particular location, h is the distance between ordered data, and n is the number of paired data at a distance of h. The semivariance is half the variance of the increments, but the whole variance of z-values at given separation distance h. A plot of semivariances versus distances between ordered data in a graph is known as a semivariogram rather than a variogram. Many authors call a variogram, others use the terms variogram and semivariogram synonymously. However, Bachmaier and Backes, who discussed this confusion, have shown that should be called a variogram, terms like semivariogram or semivariance should be avoided.

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Numerology

  1. Chaldean Numerology

    The numerical value of semivariance in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of semivariance in Pythagorean Numerology is: 2


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"semivariance." Definitions.net. STANDS4 LLC, 2024. Web. 19 Mar. 2024. <https://www.definitions.net/definition/semivariance>.

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