In statistics, the phi coefficient (or mean square contingency coefficient and denoted by φ or rφ) is a measure of association for two binary variables...

the case of 2 × 2 contingency tables, is the phi coefficient (φ) defined by ϕ = ± χ 2 N , {\displaystyle \phi =\pm {\sqrt {\frac {\chi ^{2}}{N}}},} where...

the pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field. The pressure coefficient is used in aerodynamics...

dependent on the electrical distance ϕ {\displaystyle \phi } from the load. If the coefficient is measured at a point L {\displaystyle L} meters from...

The linear attenuation coefficient, attenuation coefficient, or narrow-beam attenuation coefficient characterizes how easily a volume of material can be...

2 × 2 contingency table Cramér's V is equal to the absolute value of Phi coefficient. Let a sample of size n of the simultaneously distributed variables...

Golden ratio (φ) Phi coefficient, a measure of association for two binary variables introduced by Karl Pearson Euler's totient function or phi function Integrated...

In economics, the Gini coefficient (/ˈdʒiːni/ JEE-nee), also known as the Gini index or Gini ratio, is a measure of statistical dispersion intended to...

organic chemistry. The fugacity coefficient in thermodynamics. The ratio of free energy destabilizations of protein mutants in phi value analysis. In combustion...

An osmotic coefficient ϕ {\displaystyle \phi } is a quantity which characterises the deviation of a solvent from ideal behaviour, referenced to Raoult's...