similar to: regexp,grep: capturing more than one substring

Full_Name: Marc Mamin Version: 1.8, 2.0.0 OS: Windows & Linux Submission from: (NULL) (217.17.202.254) Using only the beginning of a column name will match it: >aaa<-1 >df<-as.data.frame(aaa) >names(df) [1] "aaa" >df$a [1] 1 !!!!!!!!! (I expect df$a to be undefind) >df$x >NULL Compare with: > df["aaa"] aaa 1 1 > df["a"]

Hello, In order to increase the performance of a script I'd like to sort very large vectors containing repeated integer values. I'm not interesting in having the values sorted, but only grouped. I also need the equivalent of index.return from the standard "sort" function: f(c(10,1,10,100,1,10)) => grouped: c(10,10,10,1,1,100) ix: c(1,3,6,2,5,4) is there a way

Hello, I'm looking for a function that counts the occurences of a given character within a string. f('|','ab|c|d') => 2 More precisely, I need to complete a vector of strings to ensure that all elements have the same count of a "separator": a|b|c a |a|b|c|d => a|b|c|| a|||| |a|b|c|d I guess that scan makes use of an internal function that would do

Hello, I'd like to insert a "wait" function in my code. The reason is that I output timestamped files and I want to ensure that at least 1 second separes 2 files to avoid overwriting the previous file. Thanks, Marc Mamin

Hi, As the server www.omegahat.org seems to be down since quite a while, could someone send me the RSXML library for Windows2000 ? Many thanks, Marc Mamin

Hallo, I'd like to add grid lines to a lattice graph having 2 series of Y data. See these 2 examples: data(iris) [1] xyplot(Sepal.Length + Sepal.Width ~ Petal.Length , data = iris, allow.multiple = TRUE, scales = "same",type="l", ) [2] xyplot(Sepal.Length + Sepal.Width ~ Petal.Length , data = iris, allow.multiple = TRUE, scales =

Hello, I'm looking for a fast way to retrieve the position of elements from a vector which match element in another vector. Example va<-c('a','e') vb<-c('a','b','c','d','e','f','e') f(va,vb) should return c(1,5,7) I have 2 different cases: I) my vector vb contains only distinct values II) my vector vb may

Dear r-helpers! I have trouble reading data from an Oracle data base using RODBC Version 1.0-3, R Version 1.7.1, Windows XP, Oracle8 ODBC Driver Version 8.1.6.4.0: > library(RODBC) > channel <- odbcConnect(dsn="PAV32", case="oracle", believeNRows=FALSE) > # ok, this was succesful > x <- sqlTables(channel) > x[37, ] TABLE_CAT TABLE_SCHEM TABLE_NAME

Hi, I have a strange issue under W2K; consider these two code extracts: 1) if(condition a){ trellis.device(png,filename = filename_a,... xyplot(... dev.off() } 2) if(condition a){ trellis.device(png,filename = filename_a,... xyplot(... } dev.off() In 1), The png file is generated, but empty; in 2), where I've taken the dev.off clause out of the condition block, my plot is

Hi, R is very new for me, so excuse if my questions are too basic... BTW, are there any forum where new R users could get help without annoying this huge mailing list ? In following code, I'd like to choose the color for each of the curve diplayed. png(filename = filename, width = 950, height = 600, pointsize = 10, bg = "white") xyplot(HITS+MS1*3+FREQ~TIME

Dear list memebers, I am stuck with using regular expressions. Imagine I have a vector of character strings like: test <- c('filename_1_def.pdf', 'filename_2_abc.pdf') How could I use regexpressions to extract only the 'def'/'abc' parts of these strings? Some try from my side yielded no results: testresults <-

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

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:

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

I want to know will builtin dll always call other builtin dll or it depends on winecfg setting just like other dll? Is it reliable that these dll mixed togther? For example, the builtin gdiplus depend on and call ole dll, does the builtin gdiplus designed to work with both builtin and native ole dll? Will there be any incompatibilities, like different memory allocator? regards,

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

On Friday 18 July 2003 12:28, r-help-request at stat.math.ethz.ch wrote: > Message: 9 > Date: Thu, 17 Jul 2003 13:50:29 +0200 > From: Marc Mamin <M.Mamin at intershop.de> > Subject: [R] line colors in lattice.xyplot with png device. > To: r-help at stat.math.ethz.ch > > Hi, > > R is very new for me, so excuse if my questions are too basic... > > ????????BTW,

Hello, I suppose this is a basic question but couldn't find a solution.: I have a large matrix with let say 3 columns: V1 V2 V3 a x 2 a x 4 a y 8 b z 16 and I want to compute some statistics based on the levels resulting form the combination of the two first columns e.g.: SUM-> V1 V2 V3 a x 6 a y 8 b z 16 Thanks for your hints . Marc

Hello, FileCheck allows us to define match variables and use them on subsequent lines. This is quite useful, but could be even more useful if it was possible to use the variable later on the same line it matched. For example, I would want to write this: ; CHECK: bic [[REG:r[0-9]+]], [[REG]], #3 But I currently can't because [[REG]] will only match a REG variable defined on a _previous_

Ok, so I would like to do something like this: string.gsub(regexp, output(''\0'' ,''\1'', ''\2'') Output returns a string. I tested it in irb and it worked ok. Now when it''s in my application, the ''\1'' and others don''t resolve as backreferences to the matches as they should. How can I fix this? Or go around