correlation formula
1Correlation swap — A correlation swap is an over the counter financial derivative that allows one to speculate on or hedge risks associated with the observed average correlation, of a collection of underlying products, where each product has periodically observable …
2Correlation — In probability theory and statistics, correlation, (often measured as a correlation coefficient), indicates the strength and direction of a linear relationship between two random variables. In general statistical usage, correlation or co relation …
3Correlation function (quantum field theory) — For other uses, see Correlation function (disambiguation). Quantum field theory …
4Point-biserial correlation coefficient — The point biserial correlation coefficient ( rpb ) is a correlation coefficient used when one variable (e.g. Y ) is dichotomous; Y can either be naturally dichotomous, like gender, or an artificially dichotomized variable. In most situations it… …
5Spearman's rank correlation coefficient — In statistics, Spearman s rank correlation coefficient or Spearman s rho, named after Charles Spearman and often denoted by the Greek letter ho (rho) or as r s, is a non parametric measure of correlation ndash; that is, it assesses how well an… …
6Partial correlation — In probability theory and statistics, partial correlation measures the degree of association between two random variables, with the effect of a set of controlling random variables removed. Contents 1 Formal definition 2 Computation 2.1 Using… …
7LSZ reduction formula — In quantum field theory, the LSZ reduction formula is a method to calculate S matrix elements (the scattering amplitudes) from the time ordered correlation functions of a quantum field theory. It is a step of the path that starts from the… …
8Falconer's formula — is used to determine the genetic heritability of a trait based on the difference between twin correlations.The formula is hb2 = 2(rmz rdz), where hb2 is the broad sense heritability, rmz is the (monozygotic) identical twin correlation, and rdz is …
9Cross-correlation — In signal processing, cross correlation is a measure of similarity of two waveforms as a function of a time lag applied to one of them. This is also known as a sliding dot product or sliding inner product. It is commonly used for searching a long …
10Intraclass correlation — In statistics, the intraclass correlation (or the intraclass correlation coefficient [Cite encyclopedia last = Koch first = Gary G. authorlink = Gary G. Koch title = Intraclass correlation coefficient encyclopedia = Encyclopedia of Statistical… …
