similar to: help on determining operating system

Hi all, Probably a rudimentary question. I have a flat file that looks like this (the real one has ~10e6 elements): 10110100101001011101011 and I want to pull that into R as a vector, but with each digit being it's own element. There are no separators between the digits. How can I accomplish this? Thanks in advance! Matt -- Matthew C Keller Asst. Professor of Psychology University of

Hi, I'm trying to use a similarity matrix (triangular) as input for pam() or fanny() clustering algorithms. The problem is that this algorithms can only accept a dissimilarity matrix, normally generated by daisy(). However, daisy only accept 'data matrix or dataframe. Dissimilarities will be computed between the rows of x'. Is there any way to say to that your data are already a

To Whom it May Concern: I have been using R version 2.6.2 for awhile now, installed on a PowerMac G5 running OS 10.4.11 I typically get Quartz graphics output from R into Adobe Illustrator CS2 simply by copying and pasting. Upon upgrading to R version 2.7.0, I now receive an error from Illustrator when trying to paste R generated graphics from the Quartz window into Illustrator. I do

Hi all, Is there a way to skip non-sequential lines using the "skip" argument in the scan function? E.g., I have a matrix with 100 rows and 1e7 columns. I open a connection and want to read only lines 5, 7, 9, etc [i.e., seq(5,99,2)] It might seem that the syntax to do this would be something like this (if only the "skip" allowed vectors in the same way colClasses does in

Hi all, My graduate student is logging onto my macpro and running R through ESS aquamacs (with Mx ssh and then Mx ess-remote). Everything is working fine until we get to graphing. We are trying to give him the ability to look at graphics interactively. The ESS manual is not too helpful: "If you run X11 (See Section 13.3.2 [X11], page 68, X-windows) on both the local and remote machines

I would like to open a console application from within R and then send input to the newly opened console. I can use the following to open the application ... setwd(path) system(paste(path,"icl.exe",sep="")) This allows me to type in what want, but I would like to do something like this setwd(path) system(paste(path,"icl.exe",sep=""),input=c("icl

Hi all, I'm having trouble getting access to the pwr. This is on Ubuntu Lucid Lynx, 64 bit. I'm installing pwr via packages.install('pwr'), and loading it via library(pwr), both of which appear successful. Strangely, I never get access to the pwr object in R. I tried installing it to /usr/local/lib/R/site-library and ~/R/x86_64-pc-linux-gnu-library. I also tried installing it

I cannot seem to get a L'abbe plot to work on R. I do not understand what the X coordinates, or alternatively an object of class metabin, is supposed to mean. What is a class of metabin? Institute of Behavioral Genetics University of Colorado, Boulder Whitney.Melroy at Colorado.EDU

Hi all, For computational reasons, I need to estimate an 18x18 polychoric correlation matrix two variables at a time (rather than trying to estimate them all simultaneously using ML). The resulting polychoric correlation matrix I am getting is non-positive definite, which is problematic because I'm using this matrix later on as if it were a legitimately estimated correlation matrix (in order

Dear R List, I noticed something odd when I started saving R graphs in pdf format and including them in LaTeX documents using (e.g.) \includegraphics{mygraphic.pdf}. A very thin dotted border is included in the LaTeX document around the graphic, and I cannot seem to make it go away. I searched Google as well as the R list archives but could not find anything on this. Note that this

Hi all, I'm giving a talk in a few days to a group of psychology faculty and grad students re the R statistical language. Most people in my dept. use SAS or SPSS. It occurred to me that it would be nice to have a few concrete examples of things that are fairly straightforward to do in R but that are difficult or impossible to do in SAS or SPSS. However, it has been so long since I have used

Hi all, I will be teaching a graduate-level course on R at CU Boulder next semester. I have a teaching idea that might also help improve the R wiki page... I wanted to know what you all thought of it and wanted to solicit some advice about doing it. During the latter part of the course, students will choose a topic of interest (e.g., hierarchical linear modeling), and show how to achieve it in

Dear All - I would like to make multi-page plots, but my plots are writing over one another - thus leaving just the last plot. Here is what I am doing: pollutionRose(temp, "nox", type="hour") update(trellis.last.object(), layout =c(3,3,3) ) I would like 24 plots with 9 plots/page (the last page would not have 9 plots) Is there any way to "force" layout to make 3

Can anyone help me? I''m having problems with the following code where I want to test the null hypothesis that regression slopes are the same among regressions. Here''s the code I''ve written with comments that include the final error I get. ... initial.dir <- getwd() library(systemfit) library(multcomp) basdata <- read.table("data_into7_test.txt",

hi all, I'm full of questions today :). Thanks in advance for your help! Here's the problem: x <- c('18x.6','12x.9','302x.3') I want to get a vector that is c('18x','12x','302x') This is easily done using this code: unlist(lapply(strsplit(x,".",fixed=TRUE),function(x) x[1])) So far so good. The problem is that x is a vector

Dear Rhelpers, Is there a faster way than below to set a vector based on values from another vector? I'd like to call a pre-existing function for this, but one which can also handle an arbitrarily large number of categories. Any ideas? Cat=c('a','a','a','b','b','b','a','a','b') # Categorical variable

Hi all, I've had one of my most miserable R weeks in memory. I'm trying to deal with huge datasets (>1GB each) but am running up against those pesky memory limits. The libraries filehash and g.data are not very suitable for what I need. I haven't gotten into the sql thing yet. Most recently I've been trying to install the new package ff (not yet on the CRAN repository). I

+1--this is the single most-annoying issue with R that I know of. My usual solution, after accomplishing nothing as R spins idly for a couple hours, is to kill the process and lose any un-saved work. save.history() is my friend, but is a big delay when you work with big data sets as I do, so I don't run it after every command. I have cc'd r-help here, however, because I experience this

Hi, I am new to programming and R. I am reading the manual and R books by Dalgaard and Veranzo to help answer my questions but I am unable to figure out the following: I have a data file that contains 1080 data points. Here's a snippet of the file: [241] 0.3603704000 0.1640741000 0.2912963000 NA 0.0159259300 0.0474074100 I would like to break the file up into 30

hi all- i am creating a boxplot and would like to shift the x-axis tick marks (named 1:23) so that the ticks are in between the boxes and not centered in the middle of the boxes. i have searched the help files and google and have not found what i am looking for. does anyone know how to do this? thanks! s.heck University of Colorado, Boulder