similar to: Parsing variable-length delimited strings into a matrix

I have a list of data that is delimited by a / and, as long as there is an equal number of delimiters, I can parse the data and put it into a data frame: > t1<-c("a/a/a","b/bb/bbb","ccc/cc/c") > t2<-strsplit(t1,"/") > t3<-data.frame(t2) > t3 c..a....a....a.. c..b....bb....bbb.. c..ccc....cc....c.. 1 a

I have a set of character vectors of uneven length that I have stored in a list. I can easily enough get any column of them using lapply but what I want is to be able to create a matrix of them. Other than some kind of brute force looping approach I have drawn a blank. Would somebody please suggest something? Thanks Example. mylist <- list(aa=c("cat","peach" ),

I truncated and simplified my code and the read in data that I'm working with to isolate the issue. Here is the read in data and R script respectively: http://r.789695.n4.nabble.com/file/n4604287/test.csv test.csv http://pastebin.com/rCdaDqPm Here is the terminal/R shell output that I hope the above replicates on your screen: > source("elecLoad.r", echo = TRUE) > #Load

Hello All, I've been using R for two years now and I am happy to say this is the first time I could not find the answer to my problem in the R-help archives. Here is the pending problem: I want to be able to insert delimiters, say commas, into a string of characters at uneven intervals such that: foo<-c("haveaniceday")#my string of character bar<-c(4,1,4,3) # my vector of

Colleagues Assume that I have a vector containing some text strings, some of which contain a particular character. I could like to apply "toupper" to the text before the character. For example (in this case, "|" is the particular character): ORIGINAL: TEXT <- c("aaaa", "bbb|cc", "|ddd") AFTER APPLICATION OF toupper: TEXT <-

Here are what i am going to accomplish: I have 400 files named as xxx.txt. the content of the file looks like the following: name count 1. aaa 100 2. bbb 2000 3. ccc 300 4. ddd 3000 ........ more that 1000 rows in each files. these are the areas i need help: 1. how can i only read in the files with the string patterns ggg or fff as part of the file names? for instance, I

Hi everyone, I have a vector of strings, each string made up by different number of words. I want to get a new vector which has only the first word of each string in the first vector. I came up with this: str <- c('aaa bbb', 'cc', 'd eee aa', 'mmm o n') str1 <- rep(1, length(str)) for (i in 1:length(str)) { str1[i] <- strsplit(str, "

I have 4 univariate time series that I believe have correlation between them, I want to create a VAR model between them all. However I have an issue as 3 of them are the same length, however the 4th is smaller. meaning that i cannot use the 4th variable , is there anyway R can get round this issue? > length(tstemp) [1] 746 > length(tspres) [1] 746 > length(tswind) [1] 746 >

Hello. I've been looking at vecsexps for my binding. Concerning strings, I'm wondering: are they supposed to be null-delimited? Are they delimited by the info in the SEXPHEADER macro in Rinternals.h? Basically, what are the macros or functions to access the values of the vecsexps? I'm thinking of CHARSXPs and INTSXPs for the moment... All the best, -- Guillaume Yziquel

I suspect that this is simple, but thanks in advance for any advice... I have a dataframe, t2: V1 V2 aaa 3 aaaa 4 aaaaaa 6 a 1 aa 2 V2 is the length of the string in V1 using nchar(as.character(t1$V1)) I'd like to create a third column, that contains a string of the length of V2, but containing an alternate text, e.g. V1 V2 V3

I run R 2.1.1 in a Linux environment (RedHat 9) although my question is not platform-specific. Consider the following: > A <- c("Prefix-aaa", "Prefix-bbb", "Prefix-ccc") > B <- strsplit(A, "-") > B [[1]] [1] "Prefix" "aaa" [[2]] [1] "Prefix" "bbb" [[3]] [1] "Prefix" "ccc" How

Hi R Users, Simple question: How might I convert the text "a, b, c" (or for that matter "a b c" with any delimiter - space, comma, etc.) into a 3-element character vector? [1] a b c Thanks, Brad

I have a new device that takes measurements anywhere from every second, to every 15 minutes (depending on changes). The matrix has a date, time and Y column (Y is the measurement). For three days it is 25,000 rows. How do I average the measurements by every 30 minutes so my matrix is 48 rows per day? I have been working on this and cannot figure out a simple method. Any ideas? Thank you. ----- In

Hello - Have both astronomic and geodetic data sets with values in the form "ddd:mm:ss.sssss", where dd is an integer between -180 and 180, mm is an integer between 0 and 60, and ss is a floating-point number between 0 and 60.0. In order to do anything useful with these values they need to be turned into their "decimal degree" equivalent. Assuming the data is a vector y, the

Hi I have a vector m: m [1] "ABC transporters" [2] "2" [3] "Acetyl-CoA" [4] "1" [5] "Energie" [6] "1" [7] "FAD Biosynthese"

Dear R-helpers: thank your for your attention. i am a newer to R and i am doing some protein category classification based on the amino acid sequence.while i have some question urgent. 1. any packages for analysis amino acid sequence 2. given two sequences "AAA" and "BBB",how can i combine them into "AAABBB" 3. based on "AAABBB",how can i get some

Here are what i am going to accomplish: I have 400 files named as xxx.txt. the content of the file looks like the following: name count 1. aaa 100 2. bbb 2000 3. ccc 300 4. ddd 3000 ........ more that 1000 rows in each files. these are the areas i need help: 1. how can i only read in the files with the string patterns ggg or fff as part of the file names? for

I'm new to Dovecot and I need help configuring a shared or public mailbox - I'm not sure which is appropriate. I've read the wiki and Peer's book and neither appears to cover what I'd like to do. So I could use some specific help on how to configure a solution for the following: I'd like to create two real mailboxes, let's call them AAA and BBB. Let's call

Hi Michael, we migrated from Cyrus Shared Folders to Dovecot Public Folder. Our setup with Dovecot: - Public Namespace type=public - prefix=NAMESPACE - location=maildir:/var/vmail/public/domain.com/folder:INDEXPVT=~/public/domain.com/NAME - list=children to show NAMESPACE only if acl is given - Restart Dovecot - cd /var/vmail/public/domain.com/NAMESPACE - mkdir .NAME - We utilise one user

I upgraded Puppet master from 2.7.6 to 2.7.20 on CentOS5.8_x86_64. But when I tried to launch ''puppet agent -t'' on one of staging servers, the puppet daemon did not work and got heaps errors. I have no idea what made it wrong and how to fix it. Retrieving plugin [0m Failed to generate additional resources using ''eval_generate: Error 500 on SERVER: <!DOCTYPE HTML