Dear All I have a character vector, representing histology stages, such as for example: xc <- c("1", "1a", "1b", "1c", "2", "2a", "2b", "2c")
and this goes on to 3, 3a etc in various order for each patient. I do have of course a pre-established classification available which does change according to the histology criteria under assessment. I would want to convert xc, for plotting reasons, to a numeric vector such as xn <- c(1, 1.3, 1.5, 1.7, 2, 2.3, 2.5, 2.7) Unfortunately I have no clue on how to do that. Thanks for any help and apologies if I am missing the obvious way to do it. JL -- Verif30042020 ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.