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746 discussions - 2,607 posts

  • Dear friends - I'm using Tinn-R in Windows and find it OK. My son is running MacOS and is just starting using R and I know nothing about MacOS and R but we seem to have difficulties in finding ...
    Troels RingTroels Ring
    Dec 16, 2010 at 3:41 pm
    Dec 17, 2010 at 11:33 pm
  • I have a table like this: Date TIME Q A a 1 A b 2 A c 3 B a 4 B b 5 B c 6 C a 7 C b 8 C c 9 I want use R language to turn it to a matrix like : a b c A 1 2 3 B 4 5 6 C 7 8 9 I am new to R , anyone ...
    JESSICAJESSICA
    Dec 14, 2010 at 9:03 pm
    Dec 14, 2010 at 11:44 pm
  • Dear list, (R 2.12.0, Windows 7, 64bit) I recently tried to install a new package ("spacetime"), that depends on "sp" among others. I already had the last one installed, but there was probably a ...
    Jon Olav SkoienJon Olav Skoien
    Dec 17, 2010 at 4:13 pm
    Dec 23, 2010 at 11:07 am
  • I'm looking for an icon to represent an R package. Perhaps something like http://cdn2.iconfinder.com/data/icons/DarkGlass_Reworked/128x128/apps/package.png but with the R logo rather than KDE. -- ...
    Michael FriendlyMichael Friendly
    Dec 29, 2010 at 3:03 pm
    Dec 31, 2010 at 12:13 am
  • Hello R Folks... I've been looking around the 'net and I see many complex solutions in various languages to this question, but I have a pretty simple need (and I'm not much good at regex). I want to ...
    Bryan HansonBryan Hanson
    Dec 26, 2010 at 11:29 pm
    Dec 27, 2010 at 1:00 pm
  • I have recently been bitten by an aspect of the behaviour of the read.csv() function. Some lines in a (fairly large) *.csv file that I read in had too many entries. I would have hoped that this would ...
    Rolf TurnerRolf Turner
    Dec 2, 2010 at 11:54 pm
    Dec 5, 2010 at 9:05 pm
  • Hello, I am trying to find the analytical solution to this differential equation dR/dt = k1*(R^k2)*(1-(R/Rmax)); R(0) = Ro k1 and k2 are parameters that need to fitted, while Ro and Rmax are the ...
    Mahesh samtaniMahesh samtani
    Dec 15, 2010 at 4:46 pm
    Dec 17, 2010 at 8:28 pm
  • Readers, I am trying to use the function dotchart. The data is: category values1 values2 values3 values4 1 a 10 27 56 709 2 b 4 46 47 208 3 c 5 17 18 109 4 d 6 50 49 308 The following error occurs ...
    E-letterE-letter
    Dec 18, 2010 at 12:01 pm
    Dec 22, 2010 at 3:38 pm
  • Hello, I have stings which have all sort of characters (numbers, letters, punctuation marks, etc) I would like to stay only with the numbers in them, does somebody know how to do this? Thank you ...
    Luis Felipe ParraLuis Felipe Parra
    Dec 15, 2010 at 8:55 am
    Dec 17, 2010 at 2:05 pm
  • Hi. In a data set I have a variable that takes values from 1 to 14. For each subgroup of values of this variable, I would like to obtain some descriptive statistics of other variables present in the ...
    EffeesseEffeesse
    Dec 13, 2010 at 10:04 am
    Dec 14, 2010 at 11:08 am
  • From: Thomas Parr [mailto:thomas.parr at maine.edu] Sent: Thursday, December 02, 2010 10:52 PM To: r-help-request at stat.math.ethz.ch Subject: Writing to a file I am trying to get my script to write ...
    Thomas ParrThomas Parr
    Dec 3, 2010 at 4:00 am
    Feb 8, 2012 at 7:17 am
  • Dear list I have quite a small data set in which I need to have the following values ignored - not used when performing an analysis but they need to be included later in the report that I write. Can ...
    Steve SidneySteve Sidney
    Dec 13, 2010 at 3:38 pm
    Feb 16, 2011 at 8:24 pm
  • Hi all, I'm new to the list but have benfited from it quite extensively. Straight to my rather strange question: I have a data frame that contains mapping rules in this way: ACCOUNT, RULE COLUMNS, ...
    Ali SalekfardAli Salekfard
    Dec 24, 2010 at 1:45 pm
    Dec 29, 2010 at 9:26 pm
  • Hello Everyone, Been learning R over the past several months. Read several books and have learned a great deal about data manipulation, statistical analysis, and graphics. Now I want to learn how to ...
    Paul MillerPaul Miller
    Dec 7, 2010 at 11:29 pm
    Dec 17, 2010 at 9:33 am
  • Hi This is (hopefully) a bit more cogent phrasing of a previous post. I'm trying to compute a z-score to rows in a large dataframe based on values in another dataframe. Here's the script (that does ...
    Jon Erik WeenJon Erik Ween
    Dec 9, 2010 at 2:34 pm
    Dec 9, 2010 at 6:10 pm
  • Hi, consider the following two dataframes: x1=c("232","3454","3455","342","13") x2=c("1","1","1","0","0") data1=data.frame(x1,x2) y1=c("232","232","3454","3454","3455","342","13","13","13","13") ...
    Pete PetePete Pete
    Dec 7, 2010 at 4:30 pm
    May 10, 2011 at 2:05 pm
  • Hi friends, I get different values for McNemar's test in R and SPSS. Which one should i rely on when the p values differ. I came across this problem when i started learning R and seriously give up on ...
    Manoj AravindManoj Aravind
    Dec 28, 2010 at 5:05 pm
    Dec 30, 2010 at 5:48 pm
  • Dear R-users, I have a factor variable within my data frame which I derive week after week from a POSIXct variable using the cut(var,"weeks") command I have found in the chron package. The levels() ...
    Luca MeyerLuca Meyer
    Dec 17, 2010 at 4:08 pm
    Dec 20, 2010 at 6:18 pm
  • Hello, my data is contained in nested lists (which seems not necessarily to be the best approach). What I need is a fast way to get subsets from the data. An example: test <- list(list(a = 1, b = 2, ...
    Alexander SengerAlexander Senger
    Dec 7, 2010 at 2:47 pm
    Dec 7, 2010 at 7:59 pm
  • The integral of any probability density from -Inf to Inf should equal 1, correct? I don't understand last result below. R version 2.10.1 (2009-12-14) i386-pc-mingw32 locale: [1] ...
    Doran, HaroldDoran, Harold
    Dec 2, 2010 at 9:21 pm
    Dec 3, 2010 at 6:24 pm
  • Hi, I have a run of 5 graphs that I want to place them under the same page. Everything works fine to place them in a pdf file , or eps file, but when it comes to have a high quality of 300 dpi these ...
    Aldi KrajaAldi Kraja
    Dec 14, 2010 at 7:27 pm
    Dec 16, 2010 at 6:31 pm
  • Dear list, Inspired by the original Knuth tools, and for paedaogical reasons, I wish to produce a document presenting some source code with interspersed comments in the source (see Knuth's books ...
    Emmanuel CharpentierEmmanuel Charpentier
    Dec 11, 2010 at 10:58 pm
    Dec 13, 2010 at 11:22 pm
  • Hi list. I'm plotting pluviometric (Rain) data as a barplot, and then adding the salinity variable to this plot as lines. Obviously as these Y scales are completely different the salinity appears at ...
    Rodrigo AluizioRodrigo Aluizio
    Dec 9, 2010 at 4:43 pm
    Dec 11, 2010 at 12:36 pm
  • Does anyone know of a command in R that is equivalent to the =cut function in Perl? Thanks. Jonathan
    Jonathan FlowersJonathan Flowers
    Dec 1, 2010 at 11:10 pm
    Dec 10, 2010 at 6:09 pm
  • Hi rgl crashes my R session, when resizing the rgl graphic window. I am using Ubuntu Maversick, with dual monitor setup. If I disconnect one monitor, I can resize it "a little bit", but it still ...
    Rainer M KrugRainer M Krug
    Dec 8, 2010 at 10:37 am
    Dec 9, 2010 at 7:08 pm
  • many languages have shorthands for that operation like: variable += 1 or ++variable is there something like that in R ? -- View this message in context ...
    MadrMadr
    Dec 7, 2010 at 1:43 pm
    Dec 7, 2010 at 7:47 pm
  • Hi there, In function, it's usually using ``='' to assign default value for function argument. For newbie, it's possible to using ``<- '' to assign value for function argument. Although it's not a ...
    Jinsong ZhaoJinsong Zhao
    Dec 3, 2010 at 3:35 am
    Dec 3, 2010 at 11:10 am
  • Hi! My question(s) in the end might be silly but I am no expert on this, so here it goes: Noy-Meir (1973), Pielou (1984) and a few others have pointed to non-centered PCA being in some cases useful ...
    Nikos AlexandrisNikos Alexandris
    Dec 22, 2010 at 3:55 am
    Jan 7, 2011 at 7:20 pm
  • Good Evening: I am putting together a large report with plots created in R, V 2.12.0. Most of the plots are created using ggplot2 V0.8.9. I use R's pdf() command to export the plot to a pdf file. I ...
    Adam CarrAdam Carr
    Dec 30, 2010 at 10:59 pm
    Jan 1, 2011 at 9:11 pm
  • Hi, I am trying to produce a levelplot using the following: library(lattice) df <- read.table("data", sep="\t", header=TRUE) gr = levelplot(df$z ~ df$x * df$y, ...
    JonathanJonathan
    Dec 15, 2010 at 9:53 pm
    Dec 28, 2010 at 8:31 pm
  • Dear all, My double for loop as follows, but it is little efficient, I hope all friends can give me a "vectorized" program to replace my code. thanks x: is a matrix 202*263, that is 202 samples, and ...
    BbsloverBbslover
    Dec 26, 2010 at 12:18 pm
    Dec 27, 2010 at 12:16 pm
  • Hi, I want 12 ticks at axis 1 and want to write Jan-Dec on each. something like: axis(1, at=1:12, labels=c('J','F','M','A','M','J','J','A','S','O','N','D')) I could omit default ticks but now how to ...
    Yogesh TiwariYogesh Tiwari
    Dec 21, 2010 at 12:36 pm
    Dec 22, 2010 at 9:51 pm
  • Dear latticists, I would like to spread a lattice conditioned plot over multiple pages, keeping the same layout as if I had only one page as shown in the code below. My workaround is to divide the ...
    Dieter MenneDieter Menne
    Dec 19, 2010 at 4:23 pm
    Dec 20, 2010 at 10:09 am
  • Newbie here...just learning Do most packages come with pdf versions of the help files ? If yes, how to I access the entire pdf file to be able to print it ? Is there a standard command for that ? -- ...
    EricEric
    Dec 18, 2010 at 7:20 pm
    Dec 19, 2010 at 12:34 am
  • Hi, I have a series of lattice plots which I am arranging in a 2x2 grid via print: print(p.preds, split=c(1,1, 2,2), more=TRUE) print(p.comp, split=c(2,1,2,2), more=TRUE) print(p.bw, ...
    Rajarshi GuhaRajarshi Guha
    Dec 17, 2010 at 4:12 am
    Dec 17, 2010 at 1:35 pm
  • I need help with using graphics in Word 2007 that will later be converted into a pdf document.? I have tried several formats and found that?I get the best quality of graphics using .wmf, .eps format, ...
    Tim ClarkTim Clark
    Dec 12, 2010 at 1:59 pm
    Dec 17, 2010 at 1:03 am
  • Hello dear R-help mailing list, My question is *not* about how factors are implemented in R (which is, if I understand correctly, that factors keeps numbers and assign levels to them). My question ...
    Tal GaliliTal Galili
    Dec 11, 2010 at 10:48 pm
    Dec 15, 2010 at 10:45 am
  • dear [R] users, is there a way to plot different data (but with the same x-variables) in the same xyplot window? There are already a similar question, but the answer is not enought explanatory.. ...
    Francesco NutiniFrancesco Nutini
    Dec 10, 2010 at 3:04 pm
    Dec 13, 2010 at 2:05 pm
  • HI friends, I have very lengthy graph data in edge list format. I want to convert it into node list format. example: EDGE LIST FORMAT 1 2 1 3 1 4 1 5 2 3 2 4 3 2 4 1 4 3 4 5 5 2 5 4 ITS NODE LIST ...
    ProfaarProfaar
    Dec 10, 2010 at 3:20 pm
    Dec 13, 2010 at 1:27 pm
  • Dear R helpers I have following input f = c(257, 520, 110). I need to generate a decreasing sequence (decreasing by 100) which will give me an input (in a tabular form) like 257, 157, 57 520, 420, ...
    Vincy PyneVincy Pyne
    Dec 9, 2010 at 10:40 am
    Dec 9, 2010 at 1:07 pm
  • Hi, I would like to plot a linear relationship between variable x and y. Can anyone help me with scaled plotting and axes so that all data points can be visualized somehow evenly? Plaint plot(x,y) ...
    Eric HuEric Hu
    Dec 23, 2010 at 10:37 pm
    Jan 4, 2011 at 8:10 pm
  • Dear all, I'm having trouble with my dataframe, and I hope someone can help me out... I have data from 40 subjects, displayed in a dataframe. I have randomly assigned subjects to group 1 or 0 ...
    SarahSarah
    Dec 31, 2010 at 9:51 am
    Jan 2, 2011 at 9:09 am
  • Hi, Maybe I'm missing the point here...but let's suppose you are working with "large" data sets and using functions that take a significant amount of time to run in R. I woulnd't like to run these ...
    Lars BishopLars Bishop
    Dec 31, 2010 at 8:35 pm
    Jan 1, 2011 at 4:56 pm
  • Hi All, I am trying to import a .sas7bdat file into R. I tried using Hmisc package's sasxport.get() function. temp <- sasxport.get("path\abcd.sas7bdat") I get an error that says "Error in ...
    Sashi ChallaSashi Challa
    Dec 28, 2010 at 12:43 am
    Dec 30, 2010 at 7:34 pm
  • Hi, I am trying to load into R a MATLAB format file (actually, as saved by octave). The file is about 300kB but R complains with a memory allocation error: Loading required package: R.oo Loading ...
    Stefano GhirlandaStefano Ghirlanda
    Dec 19, 2010 at 7:35 pm
    Dec 22, 2010 at 4:01 pm
  • Hi, I have a dataset where the response for each person on one of the 2 treatments was a proportion (percentage of certain number of markers being positive), I also have the number of positive & ...
    Array chipArray chip
    Dec 21, 2010 at 12:40 am
    Dec 21, 2010 at 5:37 pm
  • [1] 11250 So the question is, why do I get 11249 out of the first command and not 11250? I can't figure this one out. Thanks Cory
    Cory nCory n
    Dec 20, 2010 at 7:04 pm
    Dec 20, 2010 at 8:20 pm
  • It is interesting to graph the distribution of the standardized average as n increases. Do this when the Xi are uniform on [0; 1]. Look at the histogram when n is 1, 5, 10 and 25. Do you see the ...
    Diavolo_vamDiavolo_vam
    Dec 16, 2010 at 6:12 pm
    Dec 17, 2010 at 4:39 pm
  • Dear list, this might be an easy one, but I could figure out a solution (or how to google the right term). Is there any way to test whether all elements of a vector are identical? For numeric vectors ...
    JannisJannis
    Dec 16, 2010 at 2:17 pm
    Dec 17, 2010 at 3:20 pm
  • Hi, if I have a dataframe such that ID Time Earn 1 1 10 1 2 50 1 3 68 2 1 40 2 2 78 2 4 88 3 1 50 3 2 60 3 3 98 4 1 33 4 2 48 4 4 58 ..... .... ..... Now if I have to select the all the rows from the ...
    Hrithik RHrithik R
    Dec 15, 2010 at 6:10 am
    Dec 15, 2010 at 5:57 pm
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