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...nt j) { if (i < 0 || j < 0) return 0; /* Two strings which have the same address must be the same, so avoid looking at the contents */ if (STRING_ELT(x, i) == STRING_ELT(y, j)) return 1; /* Then if either is NA the other cannot be */ /* Once all CHARSXPs are cached, Seql will handle this */ if (STRING_ELT(x, i) == NA_STRING || STRING_ELT(y, j) == NA_STRING) return 0; return Seql(STRING_ELT(x, i), STRING_ELT(y, j)); } Matthew

Hello, I?d like to compare two strings internally the way R would, so I need Scollate which is not part of the authorized R api. So: - Can Scollate (and perhaps Seql) be promoted to api ? - If not what are the alternatives ? Using strcmp or stroll does not seem as general as Scollate. Romain PS: Here is some context: https://github.com/hadley/dplyr/issues/325

Hello, I am struggling with detecting successive digits in a numerical series vector. Here is an example: vec <- c(1, 15, 26, 29, 30, 31, 37, 40, 41) I want to be able to detect 29, 30, 31 and 40, 41. Then, I would like to delete the successive digits from the vector. 1, 15, 26, 29, 37, 40 Cheers -- View this message in context: