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Similarity vs Correlation - What's the difference?

similarity | correlation | Related terms |

As nouns the difference between similarity and correlation

is that similarity is closeness of appearance to something else while correlation is a reciprocal, parallel or complementary relationship between two or more comparable objects.

similarity

English

Noun

(similarities)
  • Closeness of appearance to something else.
  • (philosophy) The relation of sharing properties.
  • Hardly is there a similarity detected between two or three facts, than men hasten to extend it to all. — Sir W. Hamilton.

    Synonyms

    * resemblance

    See also

    * similitude * likeness * alikeness

    correlation

    Noun

    (en noun)
  • A reciprocal, parallel or complementary relationship between two or more comparable objects
  • (statistics) One of the several measures of the linear statistical relationship between two random variables, indicating both the strength and direction of the relationship.
  • An isomorphism from a projective space to the dual of a projective space, often to the dual of itself.
  • Derived terms

    * autocorrelation * correlation coefficient * Pearson correlation