Regression or regressions may refer to:
Arts and entertainment
*
''Regression'' (film), a 2015 horror film by Alejandro Amenábar, starring Ethan Hawke and Emma Watson
*
''Regression'' (magazine), an Australian punk rock fanzine (1982–1984)
*
''Regressions'' (album), 2010 album by Cleric
Computing
*
Software regression, the appearance of a bug in functionality that was working correctly in a previous revision
**
Regression testing
Regression testing (rarely, ''non-regression testing'') is re-running functional and non-functional tests to ensure that previously developed and tested software still performs as expected after a change. If not, that would be called a '' regr ...
, a software testing method which seeks to uncover regression bugs
Hypnosis
*
Age regression in therapy, a process claiming to retrieve memories
*
Past life regression, a process claiming to retrieve memories of previous lives
Science
*
Marine regression, coastal advance due to falling sea level, the opposite of marine transgression
*
Regression (medicine), a characteristic of diseases to express lighter symptoms or less extent (mainly for tumors), without disappearing totally
*
Regression (psychology), a defensive reaction to some unaccepted impulses
*
Nodal regression, the movement of the nodes of an object in orbit, in the opposite direction to the motion of the object
Statistics
*
Regression analysis, a statistical technique for estimating the relationships among variables. There are several types of regression:
**
Linear regression
In statistics, linear regression is a statistical model, model that estimates the relationship between a Scalar (mathematics), scalar response (dependent variable) and one or more explanatory variables (regressor or independent variable). A mode ...
**
Simple linear regression
In statistics, simple linear regression (SLR) is a linear regression model with a single explanatory variable. That is, it concerns two-dimensional sample points with one independent variable and one dependent variable (conventionally, the ''x ...
**
Logistic regression
In statistics, a logistic model (or logit model) is a statistical model that models the logit, log-odds of an event as a linear function (calculus), linear combination of one or more independent variables. In regression analysis, logistic regres ...
**
Nonlinear regression
**
Nonparametric regression
**
Robust regression
**
Stepwise regression
*
Regression toward the mean, a common statistical phenomenon
See also
*
Infinite regress
Infinite regress is a philosophical concept to describe a series of entities. Each entity in the series depends on its predecessor, following a recursive principle. For example, the epistemic regress is a series of beliefs in which the justi ...
, a problem in epistemology
*
Regress (disambiguation)
{{Disambiguation