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dummy variable

British

noun

a variable appearing in a mathematical expression that can be replaced by any arbitrary variable, not occurring in the expression, without affecting the value of the whole

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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It may be that the dummy variable has more than a simple shift effect on the dependent variable, but also interacts with one or more of the other continuous independent variables.

From Textbooks • Nov. 29, 2017

The binary variable, our dummy variable of interest in this analysis, is gender where male is given a value of 1 and female given a value of 0.

From Textbooks • Nov. 29, 2017

This occurs because of the new variable X2 X1, called the interaction variable, was created to allow for an effect on the slope of X1 from changes in X2, the binary dummy variable.

From Textbooks • Nov. 29, 2017

The index is therefore called a dummy variable.

From Textbooks • Mar. 30, 2016

The variable v acts as a dummy variable that disappears after integration, leaving the arc length as a function of time t.

From Textbooks • Mar. 30, 2016

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023