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| lengthen <- function(vec, length) { | |
| vec[sort(rep(seq_along(vec), length.out = length))] | |
| } | |
| lengthen(a2, length(a1)) | |
| # [1] 1 1 1 3 3 3 4 4 5 5 | |
| lengthen(a3, length(a1)) | |
| # [1] 1 1 2 2 5 5 6 6 9 9 | |
| lengthen(a4, length(a1)) | |
| # [1] 5 5 5 1 1 1 3 3 4 4 | |
| s1 <- c("a", "c", "b") | |
| f1 <- factor(c("g", "l", "c", "a")) |
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