Abstract
The word variable is derived from the Latin variare, to vary. A variable gives us a method for associating a concept like income with a set of data. Variables are used together with operators in the syntactical portion of our specification language (e.g., death*birth).
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© 1999 Springer Science+Business Media New York
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Wilkinson, L. (1999). Variables. In: The Grammar of Graphics. Statistics and Computing. Springer, New York, NY. https://doi.org/10.1007/978-1-4757-3100-2_4
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DOI: https://doi.org/10.1007/978-1-4757-3100-2_4
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4757-3102-6
Online ISBN: 978-1-4757-3100-2
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