Hi, Point taken... although this error is not returned in older version of R (3.1.2 does not have any issue with your test case... not sure when the added layer of check was introduced).
From: "William Dunlap" <wdun...@tibco.com> To: "Sebastien Bihorel" <sebastien.biho...@cognigencorp.com> Cc: r-help@r-project.org Sent: Monday, March 12, 2018 10:56:43 AM Subject: Re: [R] Equivalent of gtools::mixedsort in R base 1- mixedorder does not work in a "do.call(mixedorder, mydataframe)" call like the order function does This is tangential, but do.call(order, mydataframe) is not safe to use in a general purpose function either - you need to remove the names from the second argument: > d <- data.frame(method=c("New","New","Old","Old","Old"), result=5:1) > do.call(order, d) Error in match.arg(method) : 'arg' must be NULL or a character vector > do.call(order, unname(as.list(d))) [1] 2 1 5 4 3 Bill Dunlap TIBCO Software wdunlap [ http://tibco.com/ | tibco.com ] On Sun, Mar 11, 2018 at 9:15 PM, Sebastien Bihorel < [ mailto:sebastien.biho...@cognigencorp.com | sebastien.biho...@cognigencorp.com ] > wrote: Hi, Searching for functions that would order strings that mix characters and numbers in a "natural" way (ie, "a1 a2 a10" instead of "a1 a10 a2"), I found the mixedsort and mixedorder from the gtools package. Problems: 1- mixedorder does not work in a "do.call(mixedorder, mydataframe)" call like the order function does 2- gtools has not been updated in 2.5 years Are you aware of an equivalent of this function in base R or a another contributed package (with correction of problem #1)? Thanks ______________________________________________ [ mailto:R-help@r-project.org | R-help@r-project.org ] mailing list -- To UNSUBSCRIBE and more, see [ https://stat.ethz.ch/mailman/listinfo/r-help | https://stat.ethz.ch/mailman/listinfo/r-help ] PLEASE do read the posting guide [ http://www.r-project.org/posting-guide.html | http://www.R-project.org/posting-guide.html ] and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ 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.