# Variable

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## Variable

An element in a model. For example, in the model RS&Pt+1 = a + b Tbill t + et, where RS&Pt+1 is the return on the S&P in month t+1 and Tbill is the Tbill return at month t, both RS&P and Tbill are "variables" because they change through time; i.e., they are not constant.

## Variable

Anything that does not have a set value. In basic algebra, a variable is often expressed as "x." Variables in economics and finance may be measures such as GDP, prices, or interest rates. Analysts use complicated equations to determine the value of some variables at the present time and even more complicated equations to predict their possible future values. See also: Regression.

## variable

Something, such as stock prices, earnings, dividend payments, interest rates, and gross domestic product, that has no fixed quantitative value. See also dependent variable, independent variable.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.
References in periodicals archive ?
Note that the instruction jsr 5 at addresses 0 and 3 calls subroutine 5, and the instruction astore 3 at address 5 stores the return address (1 or 4) into local variable 3.
But the A appearing in the SETQ expression returned by the macro is evaluated within the lexical context of TEST, and so refers to the local variable A visible in the body of TEST, which is 5.
Polymorphic types in combination with runtime stacks are also used to implement visibility rules, which make the actual representation of abstract types associated to local variables only resolvable by the authorized function.
where each renaming [[Rho].sub.a,h] is chosen so that [Rho](h) [equivalent] and where the local variables in B are renamed to new variables never seen before in any other transition step.
An alternative way is to stick to the standard stack-based scheme, which violates the SSC rule because dead local variables remain in the stack frame until the function returns.
To model the initial state of a constructor invocation for class [Psi], a [JVML.sub.c] program begins in a state in which local variable 0 contains an uninitialized reference, the argument of the constructor.
Correct identified rate Set Full spectrum Traditional VS L-VS SIMCA PLS-DA SIMCA PLS-DA SIMCA PLS-DA Class 1 0.93 0.79 0.93 0.93 1.00 1.00 Class 2 0.80 0.60 0.80 0.80 1.00 1.00 Class 3 1.00 1.00 1.00 1.00 1.00 1.00 Class 4 0.40 1.00 0.40 1.00 1.00 1.00 Class 5 0.40 1.00 0.40 1.00 1.00 1.00 Class 6 0.71 0.86 0.57 0.71 1.00 1.00 Class 7 0.25 0.50 0.25 0.50 1.00 1.00 Class 8 0.57 0.71 0.57 0.86 1.00 1.00 Class 9 0.90 0.90 0.90 0.90 1.00 1.00 Class 10 0.75 1.00 0.75 1.00 1.00 1.00 Class 11 0.50 0.50 0.50 1.00 1.00 1.00 Class 12 0.75 1.00 0.75 1.00 1.00 1.00 Class 13 0.50 1.00 0.50 1.00 0.75 1.00 VS: variable selection; L-VS: local variable selection; SIMCA: soft independent modelling of class analogy; PLS-DA: partial least squares discriminant analysis.
The dynamic creation of a variable and its assignment is achieved by using the local variable declaration in a sequence or property declaration and making an assignment in the sequence.
* Wherever possible, use local variables instead of class members.
The globally available (common to and useable by all) clipboard was then accessed by the research program, which retrieved the data to a local variable and wrote the information to file (Listing # 3, Subroutine #3, #4).

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