similar to: how to get data and post it on R

I want to get three .gif image files test.1.gif, test.2.gif, & test.3.gif by using a loop. The code I tried is like this: x=c(0, 1, 2, 3, 4) y=c(1, 2, 3, 4) for(i in 1:3) { x11() jpeg("test.i.gif") plot(x, y) dev.off() } but I only could get one image file, test.i.gif. How can I get three image files? Thanks.

Hi, I've been playing with: > joinDate <- format(strptime(as.vector(forum[,2]), "%d-%b-%y"), + "%d-%b-%Y") > today <- format(strptime(as.vector("14-Jun-04"), "%d-%b-%Y"), + "%d-%b-%Y") > joinDate [1] "04-Feb-2004" "13-Feb-2004" "26-Feb-2004"

Hi, Suppose I have a categorical variable called STREET, and I have 30 levels for it (i.e. 30 different streets). I want to find all those streets with only 15 observations or below then collapse them into a level called OTHER. Is there a quick way, other than using a for() loop, to do it? Currently what I'm doing is something like: ### Collapse STREET (those < 15) st <- c()

I've got a PhD student starting this year. She'll be working on data mining. She has asked for a reading list while she's still in her home country, which is a really good sign. Her cosupervisor and I don't (think we) have any problem with choosing things that are specifically about data mining, but there are some statistical ideas (sampling, exploratory-vs-confirmatory,

I am familiar with the rpart and tree packages for classification and regression trees. However, quite a bit of the research in the transportation community relating to decision trees uses the C4.5 family of algorithms by Quinlan. Are there any plans to make a C4.5 (or a derivative of it) available to R? If not, then I might use the WEKA Java package ( http://www.cs.waikato.ac.nz/ml/weka) that

Hello I would like to install a package on R (splancs package) after downloading them what is the step for implementing them in my library? Thank you. --------------------------------- [[alternative HTML version deleted]]

I can't load the packages locfit, lokern and quantreg. When I try to load the 3 packages the R program says that the pakages are not properly installed. He says to see the note in ?library. I think that the error is because there is no built field in the 3 packages. What can I do to make the packages run. My OS is Windows XP. Thank you Rui Martins

Hello, I am using R for Windows and I receive error messages when trying to change my working directory: > setwd('C:\BACC_R') Error in setwd(dir) : cannot change working directory I would really appreciate your help, Joan Serra

Hi, How could I plot two vectors on the same graph? For example, if I have two lists of results, each list is a vector. I want to display them on the same graph, so I can compare them. How could I do that? Regards, Justin

First . . . SUBSCRIBE (I want to subscribe to the list). Second, I am trying to install R on windows XP. In looking at the instruction manual I get the following: The simplest way is to use 'rw1081.exe' or 'miniR.exe'. Just double-click on the icon and follow the instructions. If you installed R this way you can uninstall it from the Control Panel. How do I get the

Dear all, Is there a camera rotation for 3d graphics in R. I have seen it in a conference one time and thought it is pretty neat. the presenter was able to rotate the 3d graph with dragging the mouse up down left right. If not in R is there something that is open source that does this. Thank you Jean Eid

Hi, I have a problem with R; it won't start! I've installed it fine, no problems, but when I try to run it the mouse cursor changes to an hourglass for 1 second and back to normal, and that's it, it doesn't start up. No error messages or nothing. I run Windows XP Pro. by the way. I'd be thankful for any help. [[alternative HTML version deleted]]

Hello right, I need a good book to help me with R. background, programming in matlab, perl, visualBasics. os windows and Linux. some good books to match the need would be appreciated. Thanks

Hi Fellows from R-Help List! My questions are basic since i an new with R. I am very acquainted with Matlab & Gauss (the compentence, I guess). Anyhow, (1) I am trying to get R execute comands made or built as text, so that one can feed a particular option with many variations coming from a text file. Is this possible with the free version? For instance, there exists the eval comand in

Sorry, I forgot to correct the message subject, so I am resending my doubt it below: Hi all! I wrote a very basic program in R, which has some loops ('for' and 'while'). Is there a way to print the 'for' (or while) indice while the program is running so that I am able to estimate where the program is and how long it will last? I mean, I want something like this:

> the main advantage it has over SPSS-like software is that you do not > need to explicitly create dummy variables. You only need to specify > your dependent variable and independent variables and R will fit it > (and create dummy variables automatically) for you. Does the audience know exactly what the creation of dummy variables in SPSS is and means? If not, they might consider

OK I have been trying to learn how to use this program and I cannot even import any data into it. I have downloaded all the manuals but they do not seem to help. Is there a book on R for dummies???

Hi, I'm a bit confused how julian() works. If I understand right, it returns the number of days since the origin. I have a vector: > SLDATX[1:10] [1] "1986-01-06" "1986-01-17" "1986-02-02" "1986-02-04" [5] "1986-02-04" "1986-02-21" "1986-03-06" "1986-03-25" [9] "1986-04-06"

Hey, R-listers I was recommended to try using smooth.spline function for estimating 2-Dimensinal curve given a data set. So will you please tell me where to get this R function? Or which package provides this function? Thanks for your point. Fred

hello there, I'm a new user to R and I am having difficulty reading a file into the program. Here's the error I keep getting, I bet there's a simple solution, but I cant find any... Error in file(file, "r") : unable to open connection In addition: Warning message: cannot open file `c:MikeWeather2.txt' I have made sure that my working directory is the same as