# discrete variable

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Related to discrete variable: Continuous variable, Discrete Random Variable

## discrete variable

[di¦skrēt ′ver·ē·ə·bəl]
(mathematics)
A variable for which the possible values form a discrete set.

## discrete variable

See VARIABLE.
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References in periodicals archive ?
The SAO non-linear optimization has the capability to adjust continuous and discrete variables to define a complex system.
The final set of chi-square tests of independence evaluated the relationship between animal cruelty and each discrete variable of parental abuse.
The first version uses discrete variables, while the second version uses continuous variables.
These variables can be divided into two categories as continuous variables and discrete variables. Actually, in practical engineering applications, discrete variables are used commonly as design or optimization variables, cross-sectional areas of the structural members, for instance.
The purpose of a Parametrized Correlation Method is to determine a relationship between two sets of stochastic discrete variables. In statistics, the "correlation" concept has a very specific meaning.
The dependent variable of the ordered probit model is a discrete variable and only contains three values (-1,0,1).
Equation (3) shows the impedance analysis cupping to ensure system stability as Re (1/Zc1) and admittance Y * as a discrete variable [3].
The random variables are considered to be continuous but the discrete variable case could be treated similarly.
Cavicchi in [1], its result being presented in theorem 1 from Section 2 in continuous variable case and in theorem 2 from Section 3 in discrete variable case.
Comparison with IABC with DE, G3-GA [10] and MABC for Reconfigurable Antenna-array Design with Discrete Variable
So, the time can also be a discrete variable, and the state space can also be discrete.
where E is the shift operator of the discrete variable n, defined by [E.sup.k] f(n) = f(n + k), k [member of] Z; t and y are continuous variables, [a.sub.1], [a.sub.-1], [b.sub.-1], [[alpha].sub.1], [[alpha].sub.2], [[beta].sub.1], and [[beta].sub.2] are functions of t and y.

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