similar to: New package gsubfn

Hi, I'm try to collect a list of methods/packages available in R for doing in-string variable/symbol substitution, e.g. someFcn("pi=${pi}"), anotherFcn("pi=@pi@") and so on becomes "pi=3.141593". I am aware of the following: ** gsubfn() in the 'gsubfn' package, e.g. > gsubfn( , , "pi = $pi, 2pi = `2*pi`") [1] "pi = 3.14159265358979,

Version 0.3-7 of the gsubfn package is available on CRAN. Changes to the package are: - all known bugs have been fixed. - in gsubfn and strapply the replacement object can be a list (or a function, formula, character string or proto object, as before). In the case of a list, regexp matches are looked up in the list names and the corresponding list component used. # Example 1 - at

Version 0.3-7 of the gsubfn package is available on CRAN. Changes to the package are: - all known bugs have been fixed. - in gsubfn and strapply the replacement object can be a list (or a function, formula, character string or proto object, as before). In the case of a list, regexp matches are looked up in the list names and the corresponding list component used. # Example 1 - at

Hi all, I swear this used to work: library(gsubfn) strapply("S(AC,P)TVDK(8)EELVQK(8), ".[(].{1,2}[)]|.")[[1]] But somewhere along the update path it stopped ... now giving me this Error in base::gsub(pattern, rs, x, ...) : invalid backreference 2 in regular expression Can't figure it out. What am I doing wrong? Thanks for any hints, Joh

Hi I have a problem with substitutions involving named backreferences. I have a vector American.dates: > American.dates [1] "5/15/1976" "2.15.1970" "1.9.2006" which I want to change into British.dates: > British.dates [1] "15/5/1976" "15/2/1970" "9/1/2006" I know I can do it like this:

Hi, I'm running out of the *numbered* backreferences \\1, \\2, ..., \\9 for gsub(). Does R support *named* backreferences, and if so, what is the syntax? Thanks Henrik

That's an interesting example, as it's conceptually similar to what Pavel is proposing, but structurally different. gsubfn() is more complicated than a simple switch in the body of the function, and wouldn't work well as an anonymous function. Multiple dispatch can nicely encompass both of these cases. For replace(), library(S7) replace <- new_generic("replace",

Hi Folks, I'm trying to extract just the backreferences from a regex. > temp = "abcd1234abcd1234" > regmatches(temp, gregexpr("(?:abcd)(1234)", temp)) [[1]] [1] "abcd1234" "abcd1234" What I would like is: [1] "1234" "1234" Note: I know I can just match 1234 here, but the actual example is complicated enough that I have to

This could be extended to sub and gsub as well which gsubfn in the gusbfn package already does: library(gsubfn) gsubfn("^..", toupper, c("abc", "xyz")) ## [1] "ABc" "XYz" On Fri, Mar 3, 2023 at 7:22?PM Pavel Krivitsky <p.krivitsky at unsw.edu.au> wrote: > > Dear All, > > Currently, list= in base::replace(x, list, value)

You can either use positive lookahead/lookbehind - but support for that is a bit flaky. Or write a proper regex, and use backreferences to keep what you need. R > x <- "abc 1,1 ,1 1, x,y 2,3 " R > gsub("(\\d),(\\d)", "\\1.\\2", x, perl = TRUE) [1] "abc 1.1 ,1 1, x,y 2.3 " B. > On Feb 12, 2018, at 9:34 PM, Jim Lemon <drjimlemon at

Dear all, Given the following vector: > (z <- c('R project', 'hello world', 'something Else')) [1] "R project" "hello world" "something Else" I know how to obtain all capitals or all lower case letters: > tolower(z) [1] "r project" "hello world" "something else" > toupper(z) [1] "R

this function is supposed to canonicalize the language: --8<---------------cut here---------------start------------->8--- canonicalize.language <- function (s) { s <- tolower(s) long <- nchar(s) == 5 s[long] <- sub("^([a-z]{2})[-_][a-z]{2}$","\\1",s[long]) s[nchar(s) != 2 & s != "c"] <- "unknown" s }

I've rolled up R-2.12.1.tar.gz a short while ago. This is an update release, which fixes a number of mostly minor issues, and some consolidation within the area of reference classes. The most serious issues were probably that we were not catching misspelled NAMESPACE directives and not catching accidentally unnamed switch() arguments (notice that fixing either will likely uncover errors in

I've rolled up R-2.12.1.tar.gz a short while ago. This is an update release, which fixes a number of mostly minor issues, and some consolidation within the area of reference classes. The most serious issues were probably that we were not catching misspelled NAMESPACE directives and not catching accidentally unnamed switch() arguments (notice that fixing either will likely uncover errors in

How is what you are doing any different from factors? > x <- factor(c(1, 2, 3, 3, 2, 3, 1), labels=c("apple", "banana", "other")) > x [1] apple banana other other banana other apple Levels: apple banana other > as.numeric(x) [1] 1 2 3 3 2 3 1 > levels(x)[3] <- "birne" > x [1] apple banana birne birne banana birne apple

I have a matching problem that I cant solve. mystring = "xxx{XX}yy{YYY}zzz{Z}" where "x","X","y","Y","z","Z" basiclly can be anything, letters, digits etc. I'm only interested in the content within each "{}". I am close but not really there yet. library(gsubfn) strapply(mystring,"\\{[^\\}]+",, perl=F)

As of release samba-1.9.16p11, the X option (exclude file) for tar creates doesn't work recursively; if the exclude file is a directory, files that are in the directory or subdirectories are not excluded from the tar create. I would like the exclude feature to work recursively, and attached is a patch to do it. The exclude feature works the same way for both create and extracts. ***

I appears that backreferences when using regexes in node names doesn''t work. Can anyone confirm this? If I''m incorrect, how do I go about using a backreference to the name regex within the node definition container? Thanks, Guy -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To view this discussion on the web

Hola, Estoy intentando cargar la librería "sqldf" y obtengo este error: > library(sqldf) Loading required package: gsubfn Error : .onLoad failed in loadNamespace() for ''gsubfn'', details: call: get(name, envir = asNamespace(pkg), inherits = FALSE) error: objeto ''addVigs2WinMenu'' no encontrado Error: package ‘gsubfn’ could not be loaded La

Starting with the head of a 499 element matrix whose column names are now the labels trom a cut() operation, I needed to get to a vector of midpoints to serve as the basis for plotting a calibration curve ( exp(linear predictor) vs. : > dput(head(dimnames(mtcal)[2][[1]])) # was starting point testvec <- c("(-8.616,-3.084]", "(-3.084,-2.876]",