[R] Accumulate objects in list after try()

Hi, I have written a function "harvest" and I would like to run the function for each value in a vector c(1:1000). The function returns 4 list objects (obj_1, obj_3, obj_3, obj_4) using the following code at the end of the function: return(list(obj_1 = obj_1, obj_2 = obj_2, obj_3 = obj_3, obj_4 =

Re: [R] Reduce(paste, x) question

Thanks Arun, this helps a lot! -- View this message in context: http://r.789695.n4.nabble.com/Reduce-paste-x-question-tp4648151p4648228.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.et

Re: [R] Reduce(paste, x) question

I should have been more specific: y <- list() a <- c("A", "K") b <- c("B", "L") c <- c("C", "M") d <- c("D", "N") e <- c("E", "O") y[[1]] <- a y[[2]] <- b y[[3]] <- c y[[4]] <- d y[[5]] <- e y [[1]] [1] "A" "K" [[2]] [1] "B" "L" [[3]] [1] "C" "M" [[4]] [1] "D" "N" [[5]] [1] "E" "O" How do I

[R] Reduce(paste, x) question

I have a question about the Reduce function: x <- list() x[[1]] <- LETTERS[1:5] x[[2]] <- LETTERS[11:15] Reduce(paste, x) [1] "A K" "B L" "C M" "D N" "E O" How do I get this?: [1] "A" "K" [2] "B" "L" [3] "C" "M" [4] "D" "N" [5] "E" "O" Thanks for your help! -- View this message in context

Re: [R] strapply and characters adjacent to the matched pattern

Thanks Gabor for your invaluable help! I learned a lot. -- View this message in context: http://r.789695.n4.nabble.com/strapply-and-characters-adjacent-to-the-matched-pattern-tp4637673p4637939.html Sent from the R help mailing list archive at Nabble.com. ___

Re: [R] strapply and characters adjacent to the matched pattern

, 5th and 6th elements strapply(c("abc", "ab", "abdef", "defc", "def", " def "), "(def|ab)($|[^[[:alpha:]])") The outcome should look like this: [[1]] NULL [[2]] [1] "ab" [[3]] NULL [[4]] NULL [[5]] [1] "def"

[R] strapply and characters adjacent to the matched pattern

Hi, In the example below, one of the searched patterns "SE" is matched in the word "second". I would like to ignore all matches in which the character following the match is one of [:alpha:]. How do I do this without removing the "ignore.case = T" argument of the strapply function? Thank you very

Re: [R] Maximum number of patterns and speed in grep

Hi, I have a minor follow-up question: In the example below, "ann" and "nn" in the third element of text are matched. I would like to ignore all matches in which the character following the match is one of [:alpha:]. How do I do this without removing the "ignore.case = TRUE" argument of the strap

[R] Finding and manipulation clusters of numbers in a sequence of numbers

Hi, I have the following sequence: in <- c(0, 0, 0, 2, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 2, 0, 2, 0, 0, 2) >From this sequence I would like to get to the following sequence: out <- c(0, 0, 0, 3, 3, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1

Re: [R] Maximum number of patterns and speed in grep

Thanks! That worked like a charm. Math Gabor Grothendieck wrote > > On Fri, Jul 13, 2012 at 1:41 PM, mdvaan <mathijsdevaan@> wrote: >> Here's some data (which should give you the error messages): >> >> # read in data >> data <- read.csv

Re: [R] Maximum number of patterns and speed in grep

rma Holdings") # match strapplyc(text, data1) strapplyc(text, data2a) strapplyc(text, data2b) Thanks in advance! Math Gabor Grothendieck wrote > > On Fri, Jul 13, 2012 at 9:40 AM, mdvaan <mathijsdevaan@> wrote: >> Thanks, I see that it is working i

Re: [R] Maximum number of patterns and speed in grep

expression pattern: parentheses () not balanced. batch[[l]] is similar to your "re" string except that there is a larger variety of characters. I haven't been able to figure out which characters are causing trouble here. Any thoughts? Thank you very much. Math Gabor Grothendie

Re: [R] Maximum number of patterns and speed in grep

is to be able to diagnose and fix it? > > Also, note that your "working" example simply overwrites > array$chunk1[j] four times. > > Sarah > > On Fri, Jul 6, 2012 at 10:45 AM, mdvaan <mathijsdevaan@> wrote: >> Hi, >> >> I am using R's grep fu

[R] Maximum number of patterns and speed in grep

Hi, I am using R's grep function to find patterns in vectors of strings. The number of patterns I would like to match is 7,700 (of different sizes). I noticed that I get an error message when I do the following: data <- array() for (j in 1:length(x)) { array[j] <- length(grep(paste(patterns[1:77

Re: [R] Fw: Extract upper case letters

Thanks, all solutions worked like a charm. Math arun kirshna wrote > > - Forwarded Message - > From: arun <smartpink111@> > To: mdvaan <mathijsdevaan@> > Cc: R help <r-help@> > Sent: Thursday, June 28, 2012 1:44 AM > Subject: Re: [R] Extract up

[R] Extract upper case letters

t <- "TheWeatherIsVeryNice" How do I extract the upper case letters? - TWIVN Thanks! -- View this message in context: http://r.789695.n4.nabble.com/Extract-upper-case-letters-tp4634664.html Sent from the R help mailing list archive at Nabble.com. __

Re: [R] How to set cookies in RCurl

AM, Duncan Temple Lang wrote: >> To just enable cookies and their management, use the cookiefile >> option, e.g. >> >> txt = getURLContent(url, cookiefile = "") >> >> Then you can pass this to readHTMLTable(), best done as >> >> content = readHTMLT

Re: [R] How to set cookies in RCurl

t; The function readHTMLTable() doesn't use RCurl and doesn't >> handle cookies. >> >>D. >> >> On 6/7/12 7:33 AM, mdvaan wrote: >>> Hi, >>> >>> I am trying to access a website and read its content. The website is a >>>

[R] How to set cookies in RCurl

Hi, I am trying to access a website and read its content. The website is a restricted access website that I access through a proxy server (which therefore requires me to enable cookies). I have problems in allowing Rcurl to receive and send cookies. The following lines give me: library(RCurl) l

Re: [R] gsub/strsplit with multiple patterns/splits

with > /Software/Embedded Controllers) .OO#. .OO#. > rocks...1k > --- > Sent from my phone. Please excuse my brevity. > > mdvaan <mathijsdevaan@> wrote: > >>Thanks! That works lik

Re: [R] gsub/strsplit with multiple patterns/splits

Thanks! That works like a charm, but I am not sure if I fully understand the syntax. I looked at the gsub page but still couldn't figure it out. What does the pattern part (",{0,1} Inc[.]{0,1}") do? What do the 0 and 1 within the curly brackets refer to? Also, what if, for example, I would want to

[R] gsub/strsplit with multiple patterns/splits

Hi, I have a vector like this: DF <- c("Aetna, Inc.", "Alexander's Inc.", "Allegheny Energy, Inc") For each element in the vector I would like to remove the "incorporated" info, so that my vector looks like this: DF <- c("Aetna", "Alexander's", "Allegheny Energy") That means that I have to str

[R] evaluate whether function returns error

Hi, The following returns an error message. How do I evaluate (TRUE or FALSE) the function? require(XML) readHTMLTable("http://www.sec.gov/Archives/edgar/data/2969/95012399010952/950123-99-010952.txt";) Thanks in advance! Math -- View this message in context: http://r.789695.n4.nabble

[R] Plotting network without overlapping vertices

Hello, I am using the plot.igraph function in the igraph package to plot a network. How do I keep vertices from overlapping? One option would be to pass an argument that restricts vertices to occupy the same coordinates given their size. A second option would be to increase the area of the plot (a

[R] Scrape data from Scopus: login through R?

Hello, The Scopus bibliographic database allows one to manually download batches of 2000 publications. The data is rich but does not provide one with a field containing the author id. However, author id's can be retrieved through the hyperlinks on the Scopus website. I have two questions: 1. My i

[R] ggplot axis limit

Hi, This is probably an easy one, but I am new to ggplot2 and cannot find an answer online. I am bar plotting values of 10 groups. These values are all within a 90-100 range, so I would like leave out the area of the bars below 90. If I say "graph + scale_y_continuous(limit=c(90, 100))", it does

Re: [R] Merging fully overlapping groups

Hi Jean and Peter, Thanks for the help. Both options are indeed faster than my initial procedure. Best, Mathijs -- View this message in context: http://r.789695.n4.nabble.com/Merging-fully-overlapping-groups-tp4470999p4473013.html Sent from the R help mailing list archive at Nabble.com. _

[R] Merging fully overlapping groups

Hi, I have data on individuals (B) who participated in events (A). If ALL participants in an event are a subset of the participants in another event I would like to remove the smaller event and if the participants in one event are exactly similar to the participants in another event I would like t

Re: [R] Select elements from text

Thanks. That worked great! -- View this message in context: http://r.789695.n4.nabble.com/Select-elements-from-text-tp4323947p4327711.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.c

Re: [R] Select elements from text

Thanks for the quick response. I get the latter part, but reading the text from MS word into R is problematic. I am able to read in (scan) all unique elements (following sep=" ") from the text, but unable to past everything together again. Any id on how to solve this? It looks like this now: text

[R] Select elements from text

Hi, I have a series of MS word files and each file contains plain text. From these texts I would like to extract only those elements (read: words) that are between square brackets. Example of a text: Most fundamentally, it has led to an effort to clarify the organizational form concept. According

Re: [R] Selecting and multiplying

Anyone any idea on how to tackle this problem? Thanks a lot! -- View this message in context: http://r.789695.n4.nabble.com/Selecting-and-multiplying-tp3784901p3793908.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.or

Re: [R] Selections in lists

Thanks David and Jorge for your comments! -- View this message in context: http://r.789695.n4.nabble.com/Selections-in-lists-tp3768562p3784816.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://st

[R] Selecting and multiplying

Hi, I have created two objects: object c contains yearly "distances" between cases and object g contains yearly interactions between cases. For each case and every year I would like to calculate the following value: Vit = sum(Dabt * Iait * Ibit) Where Vit is the value of case i in year t, Dabt i

[R] Selections in lists

Hi, I have produced a list g and I would like to reduce the amount of information contained in each object in g. For each matrix I would like to keep the values where the column name equals g[year][[1]][[x]] and the row names equals g[year][[1]][[-x]]. So in g$`1999`$`8029`, year = 1999 and x = 8

Re: [R] Selecting cases from matrices stored in lists

Thanks Jean, changing c[[t]] to c[[year]] solved the issue. Math Jean V Adams wrote: > >> Re: [R] Selecting cases from matrices stored in lists >> mdvaan >> to: >> r-help >> 08/22/2011 09:46 AM >> >> Jean V Adams wrote: >> > &

Re: [R] Selecting cases from matrices stored in lists

Jean V Adams wrote: > >> [R] Selecting cases from matrices stored in lists >> mdvaan >> to: >> r-help >> 08/22/2011 07:24 AM >> >> Hi, >> >> I have two lists (c and h - see below) containing matrices with similar >> cases but

[R] Selecting cases from matrices stored in lists

Hi, I have two lists (c and h - see below) containing matrices with similar cases but different values. I want to split these matrices into multiple matrices based on the values in h. So, I did the following: years<-c(1997:1999) for (t in 1:length(years)) { year=as.character(ye

Re: [R] Selecting section of matrix

t;-sapply(colnames(h[[year]]), function(var) h[[year]][h[[year]][,var]>0, h[[year]][var,]>0]) } David Winsemius wrote: > > On Aug 15, 2011, at 6:09 AM, mdvaan wrote: > >> Hi, >> >> I have a question concerning the selection of data. Let's say th

[R] Selecting section of matrix

Hi, I have a question concerning the selection of data. Let's say that given list h created below, I would like to select a section of the 1999 matrix. For a case (rownames and colnames) I would like to select the cells that have a value > 0. So for case 8025 8025 8026 8027 802511

[R] Adding objects to a list

#Hi list, #From the code below I get two list objects (n$values and n$vectors): dat <- matrix(1:9,3) n<-eigen(dat) n # How do I add another object to n that replicates n$vectors and is called n$vectors$test? # Thanks a lot! -- View this message in context: http://r.789695.n4.nabble.com/Addi

Re: [R] Multiply list objects

I am still thinking about this problem. The solution could look something like this (it's net yet working): k<-lapply(h, function (x) x*0) # I keep the same format as h, but set all values to 0 years<-c(1997:1999) # I define the years for (t in 1:length(years)) { year = as.characte

[R] Multiply list objects

Hi, I am trying to use the objects from the list below to create more objects. For each year in h I am trying to create as many objects as there are B's keeping only the values of B. Example for 1999: $`1999`$`8025` B B 8025 8026 8027 8028 8029 802511100 8026

Re: [R] Divide matrix into multiple smaller matrices

Hi, I still haven't found a solution for this problem. Is there a way in which I can slice the objects in c based on the info in h? Thanks a lot! -- View this message in context: http://r.789695.n4.nabble.com/Divide-matrix-into-multiple-smaller-matrices-tp3552399p3591868.html Sent from the R hel

Re: [R] Counting occurrences in a moving window

Thank you very much! I really liked the first solution, it worked great for my larger dataset. M Gabor Grothendieck wrote: > > On Fri, Jun 3, 2011 at 8:11 AM, mdvaan <mathijsdev...@gmail.com> > wrote: >> Would it be possible to use the sqldf package and the ave functio

Re: [R] Counting occurrences in a moving window

Would it be possible to use the sqldf package and the ave function to simply run ave over a limited set? So something like: DF = data.frame(read.table(textConnection(" A B 8025 1995 8026 1995 8029 1995 8026 1996 8025 1997 8026 1997 8025 1997 8027 1997 8026 1999 8027 1999 802

[R] Counting occurrences in a moving window

Hi list, based on the following data.frame I would like to create a variable that indicates the number of occurrences of A in the 3 years prior to the current year: DF = data.frame(read.table(textConnection(" A B 8025 1995 8026 1995 8029 1995 8026 1996 8025 1997 8026 1997 8025 1997 8027

[R] Divide matrix into multiple smaller matrices

Hi list, Using the script below, I have generated two lists (c and h) containing yearly matrices. Now I would like to divide the matrices in c into multiple matrices based on h. The number of matrices should be equal to: length(unique(DF1$B))*length(h). So each unique value in DF1$B get's a yearly