similar to: splitting a character vector

Displaying 20 results from an estimated 9000 matches similar to: "splitting a character vector"

2006 Feb 06
3
decomposed.ts class and method
Dear R People: In the function "decompose", the object has the class of "decomposed.ts". (from package stats) I would like to see the class definition and the method for the plotting. However, when I use isClass("decomposed.ts") I get "FALSE". When I check getMethods("plot") there is no method for plot on decomposed.ts Any suggestions,
2006 Aug 29
3
Substring and strsplit
Dear R People: I am trying to split a character vector into a set of individual letters: Ideal: x3 <- c("dog") "d" "o" "g" I tried the following: > strsplit(x3) Error in strsplit(x3) : argument "split" is missing, with no default > strsplit(x3,1) [[1]] [1] "dog" I know that this is incredibly simple, but what am I doing
2006 Feb 21
5
R and packages
Dear R People: Here is yet another strange problem. I'm using R in one of my classes. However, the computer lab has something called "Deep Freeze" and the students cannot save anything to the hard drive. I had R installed and things were working well. They would save their .Rdata files to disks. Now, we need to add more packages. We can't download and we can't bring
2006 Jan 01
4
S3 vs. S4
Dear R People: Could someone direct me to some documentation on the difference between S3 and S4 classes, please? For example, why would a person use one as opposed to another? Maybe pros and cons of each? Thanks in advance! R Version 2.2.0 (I'm downloading the new one this afternoon!) Windows. Happy New Year! Sincerely, Erin Hodgess Associate Professor Department of Computer and
2006 Dec 10
3
DOE teaching suggestions?
Dear R People: I will be teaching an undergraduate Design of Experiments class in the Spring Semester. It will be very much an applied course. My question, please: has anyone used R for a course like this, please? I've tried Rcmdr for a regression course and just plain command line for a time series course. Should I use Rcmdr, or teach them to use the command line, OR is there something
2006 Feb 27
2
install RPM file on Redhat
Dear R People: I downloaded the RPM for Red Hat Linux. How do I install this, please? When I looked at the R Intallation manual, it seemed to be referring to installing from source. Thanks in advance! Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu
2006 Aug 02
2
listing of permutations
Dear R People: Suppose I have the 4 numbers: 1,2,3,4. I would like to create a listing of the permutations of 4 items taken 4 at a time. Is there a built in function for that, please? Thanks in advance! R 2-3-1 for Windows or Linux Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu
2006 Feb 14
4
R and Power Point
Dear R People: I'm using R in a time series class. This class is being broadcast live to 2 remote sites via closed circuit TV. My people at the remote sites are having a terrible time seeing the computer screen as it is broadcast(resolution issues). I have decided to put together Power Point slides for the teaching. I am currently saving the R screen as WMF files and inserting them into
2004 Jun 08
4
off topic publication question
Dear R People: Please excuse the off topic question, but I know that I'll get a good answer here. If a single author is writing a journal article, should she use "We performed a test" or "I performed a test", please? I had learned to use "we" without regard to the number of authors. Is that true, please? Thanks for the off topic help. Sincerely, Erin
2006 Apr 24
4
GUI font size
Dear R People: On the Edit menu, there is a GUI preference tab. On the Font option, the highest value is 18. Has anyone ever had the font size set larger than that will any success, please? Thanks, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu PS Windows, R 2-2-1
2005 Jun 06
2
intervals and data frames
Dear R people: I have a vector which runs from -1 to 1, by .1, inclusively. Easy to set up. x <- seq(-1,1,.1) I then sample 3 numbers from x. y <- sample(x, 3) Suppose one of my values is -0.7. I want to set up an interval around that y1 <- pmax(y-0.1,-1) y2 <- pmin(y+0.1,1) For the value -.7, the interval will run from -.8 to -.6. There will be several intervals. Again, nothing
2004 Mar 27
3
availability of version 1.9.0?
Dear R People: When will version 1.9 (for Windows) be ready, please? My reason for asking: there is an interesting library from Bioconductor called tkWidgets. However, it will only work with version 1.9.0 or higher. Are there ways around this, or should I just be patient? Thanks so much in advance! Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences
2006 Apr 24
3
[O/T] undergrads and R
Dear R People: Are your undergraduate students receptive to learning R, as a rule? Most of the time, mine really like it. But this semester, they act as though they are being eaten by rats when learning R. They are not trying at all. Any similar experiences? If anyone has any good ideas, I would be THRILLED to hear them, as I am using R in Summer School. Thanks, Sincerely, Erin Hodgess
2007 May 25
1
windows to unix
Dear R People: Is there any way to take a Windows version of R, compiled from source, compress it, and put it on a Unix-like environment, please? thanks in advance, Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu
2006 Jan 08
2
sending methods to a new package
Dear R People: When creating a package, how do you include new methods and classes, please? I'm using the pacakge.skeleton command as a starting point. Thanks, Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu
2006 May 06
5
R and Java
Hello I m tryng to execute the code below and I have a problem with the R-Java connection.: import org.omegahat.R.Java.*; public class REvalSample { public static void main(String [] args) { String [] rargs = {"--slave", "--vanilla"}; System.out.println("Sample program to call R engine from Java"); ROmegahatInterpreter interp = new
2006 Jun 21
3
latex function with lm
Dear R People: I have used the "latex" function from the Hmisc package and it is just great! However, I have a new question regarding that function: is there an option for summary(lm(y~x)), please? There are options for different types of objects, but I didn't see one for that. Maybe I just missed it. Thanks in advance! R for Windows Version 2.3.1 Sincerely, Erin Hodgess
2007 May 25
1
trouble with snow and Rmpi
Dear R People: I am having some trouble with the snow package. It requires MPICH2 and Rmpi. Rmpi is fine. However, I downloaded the MPICH2 package, and installed. There is no mpicc, mpirun, etc. Does anyone have any suggestions, please? Thanks in advance! Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto:
2006 Dec 29
3
strange logical results
Dear R People: I am getting some odd results when using logical operators: > x <- seq(from=-1,to=1,by=0.1) > > x [1] -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 [16] 0.5 0.6 0.7 0.8 0.9 1.0 > x == -1 [1] TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE [13] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE > x
2006 Aug 10
2
OT UNIX grep question
Dear R People: I want to use the "grep" command in UNIX/Linux to check some words from the dictionary. Let's say I use: grep dog /usr/share/dict/words and I get back bulldog dog dogged and so on. How could I just get back "dog" with the grep command please? Thanks, Sincerely Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University