The logical class

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Introduction

Logical is a mode (and an implicit class) for vectors.

Remarks

Shorthand

TRUE, FALSE and NA are the only values for logical vectors; and all three are reserved words. T and F can be shorthand for TRUE and FALSE in a clean R session, but neither T nor F are reserved, so assignment of non-default values to those names can set users up for difficulties.

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Tuesday, February 7, 2017
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