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Extract a set from the multiple vectors.
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| a <- c(1, 3, 5, 7, 9) | |
| b <- c(3, 6, 8, 9, 10) | |
| c <- c(2, 3, 4, 5, 7, 9) | |
| intersect_all <- function(...) Reduce(intersect, list(...)) | |
| union_all <- function(...) Reduce(union, list(...)) | |
| intersect_all(a, b, c) | |
| # [1] 3 9 | |
| union_all(a, b, c) | |
| # [1] 1 3 5 7 9 6 8 10 2 4 |
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