similar to: matching problem

Please consider following string: MyString <- "ABCFR34564IJVEOJC3434" Here you see that, there are 4 groups in above string. 1st and 3rd groups are for english letters and 2nd and 4th for numeric. Given a string, how can I separate out those 4 groups? Thanks for your time [[alternative HTML version deleted]]

Hi I have this problem where I need to find if there is any numbers in a string, this is no problem if theres only one number per string. I would then simply use the regexpr() funtion togheter with the substring function to extract the number. But regexpr only picks one number per string either from the beginning or the end, but not multiple. Can this be done? And how for example My string <-

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 this vector of strings. MyData <- c("Test1","Test2","I(Test1^2)","I(Test2^3)","I(Test1.Test2^2)") where I want to extract only the text after "I(" and before "^" so that the string returned only contain c("Test1","Test2","Test1.Test2") I am not very skilled in the use of matching

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I'm able to do this as follows, but am wondering if anyone knows a simpler way which still avoids explicit loops? > (mystring <- letters[1:5]) [1] "a" "b" "c" "d" "e" > unlist(sapply(mystring[-length(mystring)], + function(x) paste(x,mystring[(grep(x,mystring)+1):length(mystring)],sep=""))) a1 a2 a3

HI, While I testing some code, I found some problem on Union handling. I've wrte following test code, and it has union assignment. The code's output is from pointerToUnion: chars mystring, length 64 from original: chars mystring, length 8000 It's caused by second char member(charlength) of LongestMember. For union assignment, llvm-backend seems generates assigning each member of

Hi everyone, I am relatively new to rspec and I am running into a wall in testing my views. I have a RESTful resource Contracts with a nested resource of Line_items. I am trying to figure out how to test the "edit" form of the Line_items. What complicates this is the nested routing and how to account for it, and that there is a partial form (_form.haml) that both the edit.haml and

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

Hi, I''m having a problem loading a sample data with simple rake command. rake db:fixtures:load When I run the above command,I get the following error $rake db:fixtures:load (in /home/raghu/www/photos) rake aborted! a YAML error occurred parsing /home/raghu/www/photos/test/fixtures/photos.yml. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please

Hello, I wanted to parse some information from a text, where fields are tab separated. When I copy the text into an R session (under emacs) like: mystring <- "field1 field2 field3" the tab character is replaced by a single space! For ex, if I type mystring, I get: "field1 field2 field3" The tabs have disappeared!!! I checked with Python that the text I copied was tab

I'm having a Thursday morning mental block, any suggestions on the following would be most appreciated... I have (as an example) surgery = c("d48", "d67", "dnc37", "a75", "d10", "a78", "d31", "d55", "d1") before each number part the possibilities are c("a", "d",

Hello everyone, After running the following code, I obtain this error message. > mydata <- read.table(textConnection(mystring), + header=TRUE, sep=",", + row.names="id", na.strings=" ") > mydata Warning message: closing unused connection 3 (mystring) ===== However, when I attempt to run read.table() again and immediately submit the close() function

I am doing controller testing, and I can''t seem to get the create method test to pass when friendly_id is added to the mix. If I comment it out of the model, the tests all pass perfectly. The moment I add it back in, the error looks like this: 1) Error: test_create_valid(BrandsControllerTest): FriendlyId::BlankError: FriendlyId::BlankError

hi, all i have been playing around with rails for sometime, i have seen most not all of the rails sites have similar look and feel (good one) i want to know how to use the stylesheets provided by the RoR framework if any or is it that we have to define on our own from scratch. basiclly i need information regarding how can i make my view better looking(the visuals) Thanks in advance warm

the content of th character vector (of length 1) is as follows: a <- "something2 ....pat1 name1 pat2 something2....pat1 name2 pat2....pat1 name3 pat2 " I would like to extract the character bewteen pat1 and pat2. That's to say, I would like to get a vecter of c("name1", "name2","name3"). What I did is use strsplit() twise. But I wonder if there

Does anyone know how this is don? I have a large matrix where I extract specific columns into txt files for further use. To be able to keep track of which txt files contain which columns I want to name the filenames with the column Id's. The most basic example would be to use an for() loop together with paste(), but the result is blank. Not even NULL. this is the concept of thecode i use:

Dear list, I have a general problem that I really don't know how to solve efficiently in R. Lets say we have a sequence of things, like for instance a string of words, that is stored in a file. We need all the words in a table format, so therefore we create an id for the word, that links the word to a file and the position of the word within the file, like: #In this case a very short file

Hi I have a timeSeries object (X) with monthly returns. I want to display the returns with a barplot, which I can fix easily. But my problem is labaling the x-axis, if I use the positions from the timeseries It gets very messy. I have tried rotating and changing the font size but it doesn't do the trick. I think the optimal solution for my purpose is too only display every second or third

I''m having problems with class variables.. I have a class: class Content::ApplicantsController < ApplicationController layout "mylayout" @@tab = "mystring" [... the rest is standard scaffold-created stuff ...] and a layout (mylayout.rhtml): [...] <title><%= @@tab.capitalize %></title> [...] And I keep getting this error: uninitialized