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Dear R-group, I have some noise in my text file (coding issues!) ... I imported a 200 MB text file using readlines Used grep to find the lines with the error? What is the easiest way to drop those lines...

Hi Group, Is there something like a delay function based on System time or equivalent? I basically am generating a few graphs and I would like to see each graph for say 2mins before moving on to the next one...

I am trying to find the function where I can search for a pattern in a text string (I thought I could use grep for this but no :(). > x [1] "abcdefghijkl" I want to find the positions (i.e. equivalent...

Hello, I am trying to use RJSONIO I have: x <- c(0,4,8,9) y <- c(3,8,5,13) z <- cbind(x,y) Any idea how to convert z into the JSON format below? I want to get...

Dear List, I have a column of dates say: test$date1 <- seq(19900511, to = 19900521) I want the next column to have the number of days between each subsequent date i.e days between r(i+1) and r(i...

Hello Group, Is there an easy way to query a data.frame or data.table (this is fast!) for multiple conditions? I don't want to use a SQL kind of statement. I am looking for something like a subset...

Dear Group, Is there some way for me to package a few lines of R-code as exe and have it running in the background? (unable to find info in the archives) Even better if I can package it as...

Try ?match Adapt it to your need On Saturday, July 14, 2012 12:55:33 AM UTC+5:30, Silje Nord wrote: > > Hi, > > Is there a function similar to excel's hlookup in R ? > > Thanks, > Silje > > ______________________________________________ > R-help at r...

Hello R-helpers, A fundamental question ...I'm trying to understand the differences between loop and vectorization ... I understand that it should be a natural choice to use apply / adply when it is needed to perform the same function across...

Hello R-Group, I am trying out some of my 32 Bit code on a new Win 7 64 bit installation. Unfortunately, I do not have the binary for RQuantLib which I believe is not readily available. Could someone who...

Hello Group, I have an R-function that works fine for most part but sometime runs into a long loop! (I'm lazy and short on time to debug right now so want to do something easy) For my purpose...

Hello group, I have a data frame called test.df with a bunch of columns. When I do a print(test.df), I want the numbers to appear a pre-defined setting. I believe this can be achieved by sprintf...

Hello, I have a data frame as below ... in cases where I have N.A. I want to use an average of the past date and next date .. any help? 13/10/2010 A 23 13/10/2010 B 12...

Hello Group, I am trying out RQuantLib on a 64bit Win 7 machine. But running into installation errors install.packages("RQuantLib") Warning in install.packages("RQuantLib") : argument 'lib' is missing: using 'C:\Users\Tester\Documents/R/win64-library/2.11...

Hello Group, Is there a simpler way to get data out of a list object? (like in data frame without using the apply functions) I have the following dataset > dput(d) list(c("20110405", "092102"), c("20110405", "092538"), c("20110405...

Dear Group, I am looking for ways to use R and Matlab. Doing the data transformations in R and using the data in Matlab to analyze with some pre-defined scripts. Any good ways to transfer the data into matlab...

Thanks. -----Original Message----- From: David Winsemius [mailto:dwinsemius at comcast.net] Sent: 18 September 2010 21:07 To: Santosh Srinivas Cc: r-help at r-project.org Subject: Re: [R] Date issues On Sep 18, 2010, at 11:25 AM...

I guess "invert" does the trick. For recording ... example .. file <- grep("Repurchase Price",file, fixed = TRUE, invert = TRUE) -----Original Message----- From: Santosh Srinivas [mailto:santosh.srinivas at gmail.com] Sent: 14 October 2010 11:28 To: 'r-help' Subject: Drop...

Hello Group, I need a modification in the data.table example to get my intended result shown below ... is there a more simple way! dt <- data.table(A = rep(1:3, each=4), B = rep(1:4, each=3), C...

Sender: r-help-bounces at r-project.org On-Behalf-Of: santosh.srinivas at gmail.com Subject: [R] Flexible rbind Message-Id: <AANLkTimNeoFi+nDx+xMvHR3Uw3PPyGkvTGKvBMZvAXxq at mail.gmail.com> Recipient: simon.rees at barclayscapital.com _______________________________________________ e at 1 Churchill Place...