Stamp correlation

In Statistical, a matrix of correlation gathers the Corrélation S of several variables between them, the coefficients indicating the influence which the variables have the ones on the others.

Example

In Anthropometry, one measures
  • the stature
  • the height of the bust
  • the length of the upper limb
of a certain number of individuals. The larger this number is and the more representative the correlations are. Then one calculates by laws Statistique S the influence of the variables the ones on the others. The following matrix is obtained:
  • value 1 means that the two variables are exactly correlated, it is the case of an exactly linear relation between two variables.
  • the 0.85 means that the stature exploits for 72,25% (0,85) * (0,85) the value height of the bust, and so on…
  • the missing half of the matrix can be supplemented by a symmetry according to the diagonal if the correlations are reversible.

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