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Variable vs Metric - What's the difference?

variable | metric |

In mathematics terms the difference between variable and metric

is that variable is a symbol representing a variable while metric is a measurement of the "distance" between two points in some metric space: it is a real-valued function d(x,y) between points x and y satisfying the following properties: (1) "positive definiteness": d(x,y) \ge 0 and d(x,y) = 0 \mbox{ iff } x=y , (2) "symmetry": d(x,y) = d(y,x) , and (3) "triangle inequality": d(x,y) \le d(x,z) + d(z,y) .

As adjectives the difference between variable and metric

is that variable is able to vary while metric is of or relating to the metric system of measurement.

As nouns the difference between variable and metric

is that variable is something that is variable while metric is a measure for something; a means of deriving a quantitative measurement or approximation for otherwise qualitative phenomena (especially used in Software Engineering.

As a verb metric is

to measure or analyse statistical data concerning the quality or effectiveness of a process.

variable

English

(wikipedia variable)

Adjective

(en adjective)
  • Able to vary.
    • variable''' winds or seasons; a '''variable quantity
  • Likely to vary.
  • * Shakespeare
    • Lest that thy love prove likewise variable .
  • Marked by diversity or difference.
  • (mathematics) Having no fixed quantitative value.
  • (biology) Tending to deviate from a normal or recognized type.

    • Synonyms

    * (able to vary) alterable, flexible, changeable, mutable * (likely to vary) fickle, fluctuating, inconstant, shifting, unstable, unsteady * (marked by diversity or difference) varying * aberrant

    Antonyms

    * (able to vary) constant, invariable, immutable, unalterable, unchangeable * (likely to vary) constant, invariable, immutable, unchangeable * (marked by diversity or difference) unchanging * constant, invariable

    Derived terms

    * variability * variableness

    Noun

    (en noun)
  • Something that is .
  • Something whose value may be dictated or discovered.
  • * {{quote-magazine, year=2013, month=May-June, author= Katie L. Burke
    • , title= In the News , volume=101, issue=3, page=193, magazine=(American Scientist) , passage=Bats host many high-profile viruses that can infect humans, including severe acute respiratory syndrome and Ebola. A recent study explored the ecological variables that may contribute to bats’ propensity to harbor such zoonotic diseases by comparing them with another order of common reservoir hosts: rodents.}}
  • (mathematics) A quantity that may assume any one of a set of values.
  • (mathematics) A symbol representing a variable.
  • (programming) A named memory location in which a program can store intermediate results and from which it can read them.
  • (astronomy) A variable star.
  • (nautical) A shifting wind, or one that varies in force.
  • (nautical, in the plural) Those parts of the sea where a steady wind is not expected, especially the parts between the trade-wind belts.

    • Synonyms

    * (something that is variable) changeable * (something whose value may be dictated or discovered) parameter * variable quantity

    Antonyms

    * (something that is variable) constant, invariable

    Hyponyms

    * See also

    Derived terms

    * bound variable * categorical variable * continuous variable * dependent variable * discrete variable * flow variable * free variable * global variable * independent variable * instance variable * interval variable * local variable * member variable * metasyntactic variable * nominal variable * ordinal variable * ratio variable * stock variable * variable star * variably * vary

    See also

    * argument * variate

    External links

    * * * ----

    metric

    English

    (wikipedia metric)

    Adjective

    (-)
  • of or relating to the metric system of measurement
  • (music) of or relating to the meter of a piece of music.
  • (mathematics, physics) Of or relating to distance

    • Derived terms

    * metric carat * metric level * metric system * metric space * metric structure * contrametric * extrametric * intrametric * metrical

    Noun

    (en noun)
  • A measure for something; a means of deriving a quantitative measurement or approximation for otherwise qualitative phenomena (especially used in Software Engineering)
  • * 2011 , April 10, Financial Times
    • As for the large number of official statements that Spain is safe, I think they are merely a metric of the complacency that has characterised the European crisis from the start.
  • * {{quote-magazine, date=2013-08-03, volume=408, issue=8847, magazine=(The Economist)
    • , title= Boundary problems , passage=Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric , gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.}}
    What metric should be used for performance evaluation?
    What are the most important metrics to track for your business?
    It's the most important single metric that quantifies the predictive performance.
    ''How to measure marketing? Use these key metrics for measuring marketing effectiveness.
    There is a lack of standard metrics .
  • (mathematics) A measurement of the "distance" between two points in some metric space: it is a real-valued function d''(''x'',''y'') between points ''x'' and ''y satisfying the following properties: (1) "positive definiteness": d(x,y) \ge 0 and d(x,y) = 0 \mbox{ iff } x=y , (2) "symmetry": d(x,y) = d(y,x) , and (3) "triangle inequality": d(x,y) \le d(x,z) + d(z,y) .
  • * 2014 , Wikipedia,
    • In mathematics, a metric' or distance function is a function that defines a distance between elements of a set. A set with a ' metric is called a metric space.

    • Synonyms

    * measure

    Hyponyms

    * Euclidean metric * Hausdorff metric * uniform metric * ultrametric

    Derived terms

    * landscape metrics * performance metric * success metric

    Verb

  • To measure or analyse statistical data concerning the quality or effectiveness of a process.
    • we need to metric the status of software documentation
    we need to metric the verification of requirements
    we need to metric the system failures
    the project manager is metricking the closure of the action items
    customer satisfaction was metricked by the marketing department

    See also

    * meter * avoirdupois

    External links

    * *