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Expressions like ifelse(x, TRUE, FALSE) and ifelse(x, FALSE, TRUE) are redundant; just x or !x suffice in R code where logical vectors are a core data structure. ifelse(x, 1, 0) is also as.numeric(x), but even this should only be needed rarely.


redundant_ifelse_linter(allow10 = FALSE)



Logical, default FALSE. If TRUE, usage like ifelse(x, 1, 0) is allowed, i.e., only usage like ifelse(x, TRUE, FALSE) is linted.

See also

linters for a complete list of linters available in lintr.