NA | TRUE #output :TRUE
FALSE & NA #output :FALSE
Can anyone explain how R is interpreting these statements and giving output.
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1R follows the mathematical logic: in the place of `NA` could be any other value to get the same result. – jogo Aug 08 '17 at 07:54
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Yes, the question is the same one. Thanks @Henrik – RajK Aug 12 '17 at 15:14
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NA | TRUE returns TRUE because of the | , i.e., the OR-operator which returns true when at least one condition is satisfied.
Likewise, NA | FALSE would return NA because it can not be determined.
On the other hand, with the & AND-operator, the cases are reversed. Also, this is mathematical logic and not specific to the R-language.
Aramis7d
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