similar to: Matching a character in a string

Hello- Sorry, this is a bit of a noob question, but I can't seem to progress it any further. I have two dataframes which contain a series of strings which exactly match. The problem is one has more rows than the other (more cases have been added) and they have been sorted so that they are not in the same order. The smaller dataframe, though, contains in another column which has codes

Inspired by the functions that Barry Rawlingson and Dave Forrest posted for searching Rwiki and R-help archive, I've made up a function that does the search on Prof. Baron's site (Thanks to Prof. Baron's help on setting up the query string!): RSiteSearch <- function(string, restrict="Rhelp", format="long", sortby="score",

Hi All, I am trying to match two character arrays (email lists) using either pmatch(), match() or charmatch() functions. However the function is "missing" some matches due to differences in the cases of some letters between the two arrays. Is there any way to disable case sensitivity or is there an entirely better way to match two character arrays that have identical entries but written

First, my site will be down December 27-28 because of a network upgrade at Penn. It will also be down at least one day before that, while I upgrade the operating system. (And another day some time in January because of a planned power outage.) Second, I have replaced the search engine in my R site: http://finzi.psych.upenn.edu/ I am now using Namazu instead of HtDig. The direct link to the

> 4) One problem with saving an R session and then restoring it is that > the packages in use are not reloaded. Quitting an R session and > saving could write .Rpackages in the current directory (with the > library recorded if it were not the default). Then restarting a > session in that directory would restore the loaded packages > automatically. I've been

I'm writing wrappers for some functions that change some of the default arguments. I'd rather not list all of the arguments for the low level functions because there are about a dozen wrapper functions, and about 20 arguments to lowlevel. Instead I'm trying something like this: lowlevel <- function(longname = 1) { cat("longname = ", longname, "\n") }

Hello. I'm trying to count string data that correspond to a given condition in two factors of the same length. For example, I have one factor [ 'A', 'B', 'A', 'C', 'B', 'D', 'B' ] and another is [ '1', '2', '2', '3', '2', '2', '3' ] I'd like to count the occurences of

Hello all. When I start winecfg, everything works ok until I click on the audio tab, which gives wine: Unhandled page fault on write access to 0x003ffd80 at address 0x619716c5 (thread 0009), starting debugger... Wine itself works ok, I have sound; however I think it is in OSS emulation mode, but I'd like to change it to alsa (I use ala-1.0.12). Xmms works perfectly in alsa mode, so I

Hello. I have succeeded in getting Fallout Tactics and Age Of Empire II to start multiplayer games. To do so, I had to override dpnhpast for dplaysvr.exe. I wanted to play multiplayer games with a friend of mine, but on his machine wine doesn't even load dplaysvr.exe, so he cannot join multiplayer games. How can he enable dplaysvr.exe? Thanks. -- Fabrice DELENTE

Hello. I have two soundcards (with alsa 1.0.11rc4, and OSS emulation) on my machine, and I would like to change the one Wine is using; I didn't find anything in the system.reg, and I believe ~/.wine/config isn't used anymore? The sound works, but I would like to use /dev/dsp1 instead of (default) /dev/dsp. I can't use winecfg, it throws an unhandled exception when I click on the

Hi All, I have strings made up of an unknown number of letters, digits, and spaces. Strings always start with one or two letters, and always end with one or two digits. A set of letters (one or two letters) is always followed by a set of digits (one or two digits), possibly with one or more spaces between the sets of letters and digits. A set of letters always belongs to the following set of

Hello, It's just a strange coincidence that someone posted just very recently a question about matching. I know there are several match function in the base package (such as match, pmatch, charmatch, and the gsub etc) but I can't seem to use them wisely to be able to get what I need. suppose I have the following strings: "tets" "estt" "rtes7"

Hi, I'm very new to R, and am not at all a software programmer of any sort. I appreciate any help you may have. I have figured out how to get my data into a dataframe and order it alphabetically according to a particular column. Now, I would like to seperate out certain rows based on partial character matches. Here is an (extremely) abreviated example of my data set Probe Ch1

Is there a way to convert between and integer and a character and vice versa? For instance i <- 65; ch <- intToChar(i); # "A" i <- charToInt(ch); # 65 or even better i <- c(65, 66); ch <- intToChar(i); # c("A", "B") i <- charToInt(ch); # c(65, 66) I have tried to do a ASCII map myself, and I figured out that the ASCII

I am trying to construct a two-way table where, instead of printing the two-way frequencies in the table, I would like to print the values of a third variable that correspond to the frequencies. For example, the following is easily constructed in R > fact1 <- factor(sample(LETTERS[1:3],10,replace=TRUE)) > fact2 <- factor(sample(LETTERS[25:26],10,replace=TRUE)) > fact3

Sorry about the odd terminology, but I suspect that my intent might be completely missed had I used "aggregate" or "classify" (each of which appears to have some rather special meanings in statistical analysis and modeling). I have some data about software builds; one of the characteristics of each is the name of the branch. A colleague has generated some fairly interesting

I have a list that looks like this ... > have <- list(a=7,b=3,c=1) > have $a [1] 7 $b [1] 3 $c [1] 1 and I want to have a simple way to change it to the following without re-typing the values ... > desire <- list(a=c(7,7),b=c(3,3),c=c(1,1)) > desire $a [1] 7 7 $b [1] 3 3 $c [1] 1 1 In other words, I need to create the list in desire from the list in have. In my

Let me present to you my problem : I have a character vector x and I would like to obtain the indices of the elements of this vector that yielded exactly a match. For example, x=nom, pattern="b", I would to obtain 2 because "b" is on the second position. First program : nom <- c("a","b","ab") grep("b",nom) 2 3 Then I try the

Hello! Two questions: 1: I have to import a matrix of adjacency from a file of a software that is not R (for example "bloc notes" of Windows). The problem is that the matrix is not in the explicit form as 0 1 1 1 0 0 1 0 0 but it is a scattered matrix where in each row there are two nodes that have a direct path. The matrix is a b a c b a c a For example, the first row

Hi. I have the following code in a loop. It splits a vector into subvectors of equal size. But if the size of the original vector is not an exact multiple of the desired subvector size, then the first few subvectors have one more element than the last few. I know that the cut function could be used to determine where to break up the vector, but it doesn't seem to provide control over