metricとは 意味・読み方・使い方

発音

• IPA^(key): /ˈmɛt.ɹɪk/
• 韻: -ɛtɹɪk
• ハイフネーション: met‧ric

形容詞

metric (not comparable)

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

派生語

名詞

metric (複数形 metrics)

1. A measure for something; a means of deriving a quantitative measurement or approximation for otherwise qualitative phenomena (especially used in 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.

   • 2013 August 3, “Boundary problems”, in The Economist‎^[1], volume 408, number 8847:

     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.

   • 2018, Clarence Green; James Lambert, “Advancing disciplinary literacy through English for academic purposes: Discipline-specific wordlists, collocations and word families for eight secondary subjects”, in Journal of English for Academic Purposes, volume 35, →DOI, page 106:

     The insight underlying such wordlists is that frequency, combined with metrics such as range and dispersion, profiles for teachers and students the relative usefulness of words.

   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.

2. (mathematics) A function for the 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) "non-negativity": ${\displaystyle d(x,y)\geq 0}$, (2) "identity of indiscernibles": ${\displaystyle d(x,y)=0{\mbox{ iff }}x=y}$, (3) "symmetry": ${\displaystyle d(x,y)=d(y,x)}$, and (4) "triangle inequality": ${\displaystyle d(x,y)\leq d(x,z)+d(z,y)}$.
   • 2000, Lutz Habermann, Riemannian Metrics of Constant Mass and Moduli Spaces of Conformal Structures‎^[2]:

     As we shall see, these metrics are constructed from a Green function.

3. (mathematics) A metric tensor.
4. Abbreviation of metric system.

同意語

• measure
• (数学): distance function

下位語

• (数学): Euclidean metric, Hausdorff metric, spacetime metric, uniform metric, ultrametric

派生語

動詞

metric (三人称単数 現在形 metrics, 現在分詞 metricking, 過去形および過去分詞形 metricked)

1. (transitive, aerospace, systems 工学) 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.

参考

• meter
• avoirdupois

参照

• metric on Wikipedia.

Further reading

• “metric”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “metric”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
• A Course in Metric Geometry, American Mathematical Soc., 2001, →ISBN, page 1

発音

• IPA^(key): /-mɛtɹɪk/

接尾辞

-metric

1. Forming adjectives corresponding to nouns in -meter.
2. Of or relating to measurement.

関連する語

• -meter
• -metry

派生語