similar to: gsub() with unicode and escape character

reorder() is probably the best way to order the levels in a vector without manually specifying the order. But reorder() orders by default in an increasing order: "The levels are ordered such that the values returned by ?FUN? are in increasing order." Is there a way to do what reorder() does, but order the levels according to a _decreasing_ order of the values? Sverre

Dear helpers, I am not able to export Unicode characters from R. Below is an example where the Unicode character is correctly rendered as long as I am stay within R. When I export it, the character appears only with its basic code, and the same happens when I import it back into R . I'm using R 2.13.1 in Windows XP. > funny.g <- "\u1E21" > funny.g [1] "?" >

Dear helpers, how can I extract only the values from a row in a data frame? Using [X,] doesn't do the trick: > data.frame(letters[1:10],letters[11:20])->my.data > my.data[1,] letters.1.10. letters.11.20. 1 a k I would like to be able to extract only the values "a" and "k" without getting the row names and column names with them.

Dear helpers, I can create a vector with the priority of the packages that came with R, like this: > installed.packages()[,"Priority"]->my.vector > my.vector base boot class cluster codetools "base" "recommended" "recommended" "recommended" "recommended" compiler datasets

Dear helpers, I'm trying to extract certain rows from a matrix according to the values the rows have in a certain column. I've been googling for a while without result. Here's a reproducible example of a matrix (and the one I was playing with initially): > myrepo<-getOption("repos") >

Hi all, I'm extracting the name of the term in a regression model that dropterm specifies as the least significant one, and I'm assigning this name to an object. However, when I use update(), it ignores this object. Is there a way I can make it not ignore it? A reproducible example is below: > lm(x1~1+y1*y2+y3+y4,data=anscombe)->my.lm >

Dear helpers, I'm trying out the embedFonts() to embed fonts into my pdf files. However, when I inspect the new pdf with a program designed to look for embedded fonts, I see that the fonts have in fact not been embedded. Below are my calls. R version 2.13.1 (2011-07-08) Copyright (C) 2011 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: i386-pc-mingw32/i386 (32-bit)

As recently discussed on Stack Overflow, R for Mac OS and Ubuntu (so probably all Unix systems) can correctly write files with UTF-8 encoding, but R for Windows cannot: http://stackoverflow.com/questions/19877676/write-utf-8-files-from-r I strongly suggest that R for Windows should support this feature in upcoming versions. Sverre

I was told to re-raise this issue with R-dev: In the documentation of R-dev and R-3.4.3, under ?gsub > replacement > ... For perl = TRUE only, it can also contain "\U" or "\L" to convert the rest of the replacement to upper or lower case and "\E" to end case conversion. However, the following code runs differently: tempf <- tempfile()

| Confirmed for R-devel (current) on Ubuntu 17.10. But ... isn't the regexp | you use wrong, ie isn't R-devel giving the correct answer? No, I don't think R-devel is correct (or at least consistent with the documentation). My interpretation of gsub("(\\w)", "\\U\\1", entry, perl = TRUE) is "Take every word character and replace it with itself, converted to

I am trying this: I want to replace all the text in between java comments: /* start */ replace this text here /* end */ I''m trying: text.gsub(//* start */(.*)/* end *//im, replace_with) But i''m getting errors relating to expecting keyword_end. How should I be escaping /* and */ ? Also, does string interpolation work in gsub regex? Say I had variables like: start_tag =

Hi I am writing a RoR application that needs to work with a database full of french unicode characters, unfortunately whenever I try to display a field with those values in a show I just get a question mark or no character displayed. So I decided to run a gsub (there''s only 2 fields with this problem) on the field before displying it to replace the characters with their HTML

Why are you reporting that your PCRE library does not have something which the R-admin manual says it should preferably have? To wit, footnote 37 says 'and not PCRE2, which started at version 10.0. PCRE must be built with UTF-8 support (not the default) and support for Unicode properties is assumed by some R packages. Neither are tested by configure. JIT support is desirable.' That

I think the problem in R-devel happens when there are non-ASCII characters in any of the strings passed to gsub. txt <- vapply(list(as.raw(c(0x41, 0x6d, 0xc3, 0xa9, 0x6c, 0x69, 0x65)), as.raw(c(0x41, 0x6d, 0x65, 0x6c, 0x69, 0x61))), rawToChar, "") txt #[1] "Am?lie" "Amelia" Encoding(txt) #[1] "unknown" "unknown" gsub(perl=TRUE,

I have samba set up as primary domain controller, and have problems with my Windows XP SP2 machines. Logging in is quick, but most of the time (nine out of ten times) the logout process takes a long time - I do end up rebooting, but once I let it stay and it took a whole hour before it was logged out. It seems to act the same way for all users. Possible sources already eliminated: - I have

Hi, I want to create a data frame including a column containing some special characters, like "ø". when I print that data frame out, the content change to <U+00F8>, and when save the data frame to a txt file, the content keep in that style, but I need it in its original form, anybody can explain? > x <- data.frame(part = c("målløs", "ny")) > x

I have a path: path = "/nfs/users/nfs_n/ns9/ Phenotype Analysis/Results/Run_AmplRatio_neg BinaryAll trained without akapn+tnik.csv" I wish to replace the spaces with "\ " so that it can be read by a system call to unix. Using gsub I try: > gsub(" ","\\ ",path) [1] "/nfs/users/nfs_n/ns9/Phenotype Analysis/Results/Run_AmplRatio_neg BinaryAll

Hi: I am using a subset of the below dataset to predict PRED_SUIT for the whole dataset but I am having trouble with 'newdata'. The model was created with 153 records and want to predict for 208 records. wolf2 <- structure(list(gridcell = c(367L, 444L, 533L, 587L, 598L, 609L, 620L, 629L, 641L, 651L, 662L, 674L, 684L, 695L, 738L, 748L, 804L, 805L, 872L, 919L, 929L, 938L, 950L, 958L,

Hi all, I have an easy data set. It has three columns: Subject, Condition, dprime. A small excerpt follows, in order to illustrate: Subject Condition dprime HY s 3.725846 CM s 2.877658 EH s 5 HY st 2.783553 CM st 2.633955 EH st 5 I want to visualize this. What I thought of was having dprime on the y-axis (scale 0-5), Subject on the x-axis, and then two lines plotted to show the dprime value for

Hi folks, I have a dataframe df.vars with the follwing structure: var1 var2 var3 group Group is a factor. Now I want to standardize the vars 1-3 (actually - there are many more) by class, so I define z.mean.sd <- function(data){ return.values <- (data - mean(data)) / (sd(data)) return(return.values) } now I can call for each var z.var1 <- by(df.vars$var1, group,