parameter


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parameter

a measurable characteristic; a constant factor serving as a limit; guidelines: the basic parameters of our foreign policy
Not to be confused with:
perimeter – the circumference or outline of a closed figure; outer boundary of an enclosed area: the perimeter of the estate

pa·ram·e·ter

 (pə-răm′ĭ-tər)
n.
1. Mathematics
a. A constant in an equation that varies in other equations of the same general form, especially such a constant in the equation of a curve or surface that can be varied to represent a family of curves or surfaces.
b. One of a set of independent variables that express the coordinates of a point.
2.
a. One of a set of measurable factors, such as temperature and pressure, that define a system and determine its behavior and are varied in an experiment.
b. Usage Problem A factor that restricts what is possible or what results: "all the parameters of shelter—where people will live, what mode of housing they will choose, and how they will pay for it" (New York).
c. A factor that determines a range of variations; a boundary: an experimental school that keeps expanding the parameters of its curriculum.
3. Statistics A quantity, such as a mean, that is calculated from data and describes a population.
4. Usage Problem A distinguishing characteristic or feature.

[New Latin parametrum, a line through the focus and parallel to the directrix of a conic : Greek para-, beside; see para-1 + Greek metron, measure; see -meter.]

par′a·met′ric (păr′ə-mĕt′rĭk), par′a·met′ri·cal adj.
par′a·met′ri·cal·ly adv.
Usage Note: The term parameter, which originates in mathematics, has a number of specific meanings in fields such as astronomy, electricity, crystallography, and statistics. Perhaps because of its ring of technical authority, people have applied parameter more generally in recent years to refer to any factor that determines a range of variations and especially to a factor that restricts what results from a process or policy. In this use, the word parameter is used to mean "the particular value of a parameter," and comes close to meaning "a set limit or boundary." For example, a budget can be thought of as a set of parameters that determine a range of activity, much like a set of mathematical parameters that establish the range of effects, or limits, of other variables. The sentence A budget is a framework that defines the financial parameters within which an organization operates was considered acceptable by 81 percent of the Usage Panel in our 2004 survey. Parameter is sometimes used incorrectly when it does not denote a range of variation, as if it were a technical-sounding synonym for characteristic. In 1988, 88 percent of the Usage Panel rejected the sentence The Judeo-Christian ethic is one of the important parameters of Western culture. In 2004, 77 percent rejected this same sentence, suggesting that familiarity has not bred tolerance of this usage.

parameter

(pəˈræmɪtə)
n
1. (Mathematics) one of a number of auxiliary variables in terms of which all the variables in an implicit functional relationship can be explicitly expressed. See parametric equations
2. (Mathematics) a variable whose behaviour is not being considered and which may for present purposes be regarded as a constant, as y in the partial derivative ∂f(x,y)/∂x
3. (Statistics) statistics a characteristic of the distribution of a population, such as its mean, as distinct from that of a sample. Compare statistic
4. informal any constant or limiting factor: a designer must work within the parameters of budget and practicality.
[C17: from New Latin; see para-1, -meter]
parametric, ˌparaˈmetrical adj

pa•ram•e•ter

(pəˈræm ɪ tər)

n.
1.
a. a constant or variable term in a mathematical function that determines the specific form of the function but not its general nature, as a in f(x)=ax, where a determines only the slope of the line described by f(x).
b. one of the independent variables in a set of parametric equations.
2. a variable entering into the mathematical form of any statistical distribution such that the possible values of the variable correspond to different distributions.
3. a variable that must be given a specific value during the execution of either a computer program or a procedure within a program.
4. Usu., parameters. limits or boundaries; guidelines: to keep within the parameters of the discussion.
5. a determining characteristic; factor: a useful parameter for judging long-term success.
[1650–60; < New Latin parametrum. See para-1, -meter]
par•a•met•ric (ˌpær əˈmɛ trɪk) par`a•met′ri•cal, adj.
usage: The use of parameter in the newer senses, “limits” or “characteristic” is often strongly criticized. Though the criticized uses are now well established both in educated speech and in edited writing, it is easy to substitute “limits” or “characteristics” if desired.

pa·ram·e·ter

(pə-răm′ĭ-tər)
A quantity whose value can vary in general but is fixed when the quantity is used in a specific mathematical expression involving one or more other variables. For example, in finding the area of a circle, one needs to know the length of the circle's radius; that length is a parameter that will have different values for circles of different sizes.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.parameter - a constant in the equation of a curve that can be varied to yield a family of similar curves
constant, constant quantity, invariable - a quantity that does not vary
degree of freedom - one of the minimum number of parameters needed to describe the state of a physical system
2.parameter - any factor that defines a system and determines (or limits) its performance
factor - anything that contributes causally to a result; "a number of factors determined the outcome"
3.parameter - (computer science) a reference or value that is passed to a function, procedure, subroutine, command, or program
value - a numerical quantity measured or assigned or computed; "the value assigned was 16 milliseconds"
computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
address, computer address, reference - (computer science) the code that identifies where a piece of information is stored
4.parameter - a quantity (such as the mean or variance) that characterizes a statistical population and that can be estimated by calculations from sample data
quantity - the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable

parameter

noun (Informal) (usually plural) limit, constant, restriction, guideline, criterion, framework, limitation, specification We have to define the basic parameters within which we want to operate.
Translations
parametr
parameeter
parametri

parameter

[pəˈræmɪtəʳ] Nparámetro m

parameter

[pəˈræmɪtər] n
(MATHEMATICS)paramètre m
(fig) (= limiting factor) → paramètre m
to set the parameters → fixer les paramètres

parameter

n
(Math, Comput) → Parameter m
parameters pl (= framework, limits)Rahmen m; to define or establish or set the parameters of or for somethingdie Parameter für etw festsetzen; to fall within the parameters of somethingsich im Rahmen von etw bewegen or halten

parameter

[pəˈræmɪtəʳ] nparametro

pa·ram·e·ter

n. parámetro, aspecto, evaluación de un asunto.
References in periodicals archive ?
Welch Allyn (Hill-Rom Holdings) Is One Of The Largest Companies In The Vital Parameter Monitoring Devices And Equipment Market, According To TBRC's Report (Companies: Welch Allyn (Hill-Rom Holdings), SunTech Medical (Halma plc), Masimo Corporation, General Electric Company and Medtronic plc.)
LAHORE -- The Lahore High Court has ruled that the Federal Board of Revenue (FBR) is bound to inform taxpayers about the parameters, if requested, on the basis of which they are selected for audit.
LAHORE -- The Lahore High Court has put the Federal Board of Revenue in a spot of bother after it declared that the latter's powers to keep confidential the parameters, under which taxpayers are selected for audit, as unconstitutional.
The court, after hearing the detailed arguments, issued the judgment by holding that the impugned orders for not disclosing the specific parameter applied to petitioners for selection of their cases for audit under section 214C of the Ordinance, are declared to be illegal and without lawful authority and therefore set aside.
* What is the dispersion of the estimated values of parameter uncertainties?
Polymers dissolve in solvents with similar solubility parameter. For a polymer to dissolve in a given solvent.I'1 - I'2 a$?
The definition of CPP in ICH Q8(R2) indicates that a parameter should be considered critical when its variability can affect the CQA of a product.
Parameters were applied for investigating Czech and German GDP development between the years 1991 and 2016.
* In the first step, the parameter values were averaged across the entire standard and for the particular stylus tip.
In the case that incorporated parameter uncertainty, new values of mean and standard deviation were sampled for each climate replicate.
Selected parameters characterizing the studied women aged [greater than or equal to] 40 years old (group 1) and [less than or equal to] 31 years old (group 2) Height Body mass Age Group and parameter [cm] [kg] [years] Group 1--experimental (N = 76) Me 164 67.5 55 Q25-Q75 160-167 60.0-75.0 49-59 min.-max 152-189 50.0-94.0 40-69 Group 2--control (N = 30) Me 168 61.2 26 Q25-Q75 160-168 52.0-78.0 24-28 min.-max 155-182 48.0-86.0 21-31 Body mass index Group and parameter [kg/[m.sup.2]] Group 1--experimental (N = 76) Me 24.5 Q25-Q75 22.6-28.2 min.-max 20.0-34.4 Group 2--control (N = 30) Me 21.6 Q25-Q75 19.9-24.1 min.-max 18.0-31.0 Me--median, Q25-Q75--quartiles, min.--minimal value, max--maximal value.
where f(x)= [[M.summation over (t=1)] [N.summation over (i=1)][absolute value of [sim.sup.t.sub.i] (x)-[obs.sup.t.sub.i]] MN, [theta], and [[theta].sup.*] [member of] [THETA] are the given and default parameter vectors, [sim.sup.t.sub.i] ([theta]) is the forecasted daily value at grid i and time t given [theta], [obs.sup.t.sub.i] is the observation, N is the number of grid cells in domain d02, and M is the total number of forecasted time intervals.