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4 lines
224 B
4 lines
224 B
`%l0%` <- function(x, y) if (length(x) == 0) y else x
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`%||%` <- function(x, y) if (is.null(x)) y else x
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`%@%` <- function(x, name) attr(x, name, exact = TRUE)
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`%nin%` <- function(x, table) match(x, table, nomatch = 0) == 0
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