• In regression analysis, a dummy variable (also known as indicator variable or just dummy) is one that takes a binary value (0 or 1) to indicate the absence...
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  • placeholder variable Dummy variable (statistics), an indicator variable This disambiguation page lists articles associated with the title Dummy variable. If an...
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  • mathematics Dummy variable (statistics), another term for binary variable in statistics Pacifier, called a dummy in some countries Steam dummy, a steam engine made...
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  • Thumbnail for Continuous or discrete variable
    In mathematics and statistics, a quantitative variable may be continuous or discrete if they are typically obtained by measuring or counting, respectively...
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  • Thumbnail for Indicator function
    function. A related concept in statistics is that of a dummy variable. (This must not be confused with "dummy variables" as that term is usually used in...
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  • Thumbnail for Dependent and independent variables
    A variable is considered dependent if it depends on an independent variable. Dependent variables are studied under the supposition or demand that they...
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  • In statistics, a categorical variable (also called qualitative variable) is a variable that can take on one of a limited, and usually fixed, number of...
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  • bits are '1' except one '0' is sometimes called one-cold. In statistics, dummy variables represent a similar technique for representing categorical data...
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  • model Drift rate – redirects to Stochastic drift Dudley's theorem Dummy variable (statistics) Duncan's new multiple range test Dunn index Dunnett's test Durbin...
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  • Thumbnail for Mutual exclusivity
    1/2 =1. In statistics and regression analysis, an independent variable that can take on only two possible values is called a dummy variable. For example...
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  • concept of dummy variable as used in statistics, most commonly in regression analysis.p.17 Before stating a precise definition of free variable and bound...
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  • Statistics. 5 (4): 449–451. doi:10.1080/07350015.1987.10509611. ISSN 0735-0015. Karabiber, Fatih. "Dummy Variable Trap - What is the Dummy Variable Trap...
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  • Thumbnail for Crash test dummy
    A crash test dummy, or simply dummy, is a full-scale anthropomorphic test device (ATD) that simulates the dimensions, weight proportions and articulation...
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  • on x {\displaystyle x} in non-imputed data, z {\displaystyle z} is a dummy variable for class membership, and data are split into respondent ( r {\displaystyle...
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  • some of the regressors may not allow for marginal changes (such as dummy variables, or the intercept term), while others cannot be held fixed (recall...
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  • four-way discrete variable of blood type with the possible values "A, B, AB, O" would be converted to separate two-way dummy variables, "is-A, is-B, is-AB...
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  • In statistics and regression analysis, moderation (also known as effect modification) occurs when the relationship between two variables depends on a...
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  • is dummy variable assignment, a method earlier introduced. For example, if a nominal variable has three categories (A, B, and C), two dummy variables would...
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  • Thumbnail for Interaction (statistics)
    In statistics, an interaction may arise when considering the relationship among three or more variables, and describes a situation in which the effect...
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  • Thumbnail for Logistic regression
    variables. (Discrete variables referring to more than two possible choices are typically coded using dummy variables (or indicator variables), that is, separate...
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  • explanatory variables are linearly dependent. One scenario in which this will occur is called "dummy variable trap," when a base dummy variable is not omitted...
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  • Thumbnail for Government budget balance
    quality, the lower are expected deficits. Dummy variables are variables used mainly in Econometrics and Statistics to categorize data can only take one of...
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  • Thumbnail for Law of total probability
    ISBN 978-0-486-63677-1. Deborah Rumsey (2006). Probability for dummies. For Dummies. p. 58. ISBN 978-0-471-75141-0. Jim Pitman (1993). Probability. Springer...
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  • Thumbnail for Data analysis
    retrieved 2021-06-03 "Alternative Coding Schemes for Dummy Variables", Regression with Dummy Variables, Newbury Park, CA: SAGE Publications, Inc., pp. 64–75...
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  • Thumbnail for Dichotomy
    "tall" vs "short", when measuring height). A variable measured dichotomously is called a dummy variable. In computer science, more specifically in programming-language...
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  • statistics, a random effects model, also called a variance components model, is a statistical model where the model parameters are random variables....
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  • different values of t, we then consider t to be a variable. The quantity x is a dummy variable or variable of integration (confusingly, also sometimes called...
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  • Thumbnail for Errors-in-variables models
    In statistics, errors-in-variables models or measurement error models are regression models that account for measurement errors in the independent variables...
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  • beginning of the term to test entering knowledge of the material. PSI- a dummy variable indicating the teaching method used (1 = used Psi, 0 = other method)...
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  • to the within transformation exist with variations. One is to add a dummy variable for each individual i > 1 {\displaystyle i>1} (omitting the first individual...
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