variable
value that can change, usually with a context of an equation or operation
random variable
variable representing a random phenomenon
argument of a function
independent variable of math function
parameter
auxiliary variable or arbitrary constant that characterizes a system or specifies a mathematical function among a family of functions
slack variable
mathematical concept
ordinal variable
statistical data type
state variable
variable whose value is uniquely determined by the state of a dynamical system
categorical variable
variable where there is no ordering among the values
latent variable
variable that is not directly observed but is rather inferred (through a mathematical model) from other variables that are observed (directly measured)
x
mathematical unknown variable
free and bound variables
classification of variables in a logic formula based on whether or not they are inside the scope of a quantifier
degree of freedom
(of mechanical system) number of independent parameters that define its configuration; number of parameters that determine the state of a physical system and is important to the analysis of systems of bodies
indeterminate
variable that is not known or solvable
propositional variable
mathematical representation of truth or falsehood
predicate variable
Type of mathematical variable
cartographic variable
graphic techniques used in visual design
random element
generalization of the concept of random variable to more complicated spaces than the simple real line
dummy variable
one that takes the value 0 or 1 to indicate the absence or presence of some categorical effect that may be expected to shift the outcome
assignable variable
storage location paired with a name, which contains a value
independent variable
parameter that represents an arbitrary input of a mathematical expression
free variable
variable in a logic formula which is not inside the scope of a quantifier
dependent variable
parameter that represents an output of a mathematical expression
observable variable
variable that can be observed and directly measured
parameter
in computer programming, special kind of variable that holds data that was passed as an argument to a subroutine
group size
characteristic of the groups, organizations, and communities in which social behavior occurs
exogenous and endogenous variables
variables in an economic model