Correlation is a measure of relationship between two mathematical variables or measured data values, which includes the Pearson correlation coefficient as a special case.
Correlation may also refer to: Electronic correlation, a description of the interaction between electrons in a quantum system Phase correlation, an analysis of translative movement between images Correlation (projective geometry), a type of duality amongst subspaces of a vector space Correlation (geology) is the scientific study of lithological or chronological equivalence between geological phenomena in different regions. Cross-correlation, a measure of similarity between two signals, used e.g. in seismology, to analyse seismic waves to determine the location of earthquakes Priesthood Correlation Program, a systematic approach for maintaining consistency in The Church of Jesus Christ of Latter-day Saints (LDS Church) Correlations (album), a 1979 album by Ashra
See also Correlation function (disambiguation)