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How to Generate the Matrix (t+1)*m ? (0-1)^n (0-2)^n ,,,, (0-m)^n (1-1)^n (1-2)^n ,,,, (1-m)^n (2-1)^n (2-2)^n ,,,, (2-m)^n .. ... ,,,, ....... (t-1)^n (t-2)^n ,,,, (t-m)^n Appreciate your kindly help! --------------------------------- [[alternative HTML version deleted]]

Dear all, I am a newbie in R. I encounter a problem as follows. I have 2 vectors X and Y that have a equal length of several thousand. I see Y as the function of X. Both of them are random. X is not arrranged in any order. Of course, I do plot(X,Y). Now, I want to use a sliding narrow window to run over each X, then calculate the variances within that window. Anyone knows easy way in R to do

Hi, all, I want to use lowess(x, y) where x and y are vectors of length of 4000+. In fact, x and y are log of some vectors. So, some of the elements are NaN. lowess() can not take away those elements then do the fitting. It will give the error message and do nothing. 1. Can anybody tell me how to get rid of those NaN's and use lowess()? 2. How to get the LOWESS fitting values for any

Hi, Can anybody tell me how to open new a new window for plot()? Thanks. Minghua

Hi, Anyone can tell me how to generate "A01", "A02", ..., "A99"? paste("A", 1:99, sep="") generates "A1", "A2",..., "A99". This is not what I want. Thanks for the help. -MY [[alternative HTML version deleted]]

...t a multiple of replacement length although only 4 values are replaced by AA[idx, 1] <- B. 2) the behaviour of the 3D case. ---------- Forwarded message ---------- Date: Fri, 3 Sep 2004 16:40:24 +0100 (BST) From: Prof Brian Ripley <ripley@stats.ox.ac.uk> To: "Yao, Minghua" <myao@ou.edu> Cc: R Help <r-help@stat.math.ethz.ch> Subject: Re: [R] Different Index behaviors of Array and Matrix [I will copy a version of this to R-bugs: please be careful when you reply to only copy to R-bugs a version with a PR number in the subject.] On Fri, 3 Sep 2004, Yao, Minghua wrot...

...t; although only 4 values are replaced by AA[idx, 1] <- B. > > 2) the behaviour of the 3D case. > > ---------- Forwarded message ---------- > Date: Fri, 3 Sep 2004 16:40:24 +0100 (BST) > From: Prof Brian Ripley <ripley@stats.ox.ac.uk> > To: "Yao, Minghua" <myao@ou.edu> > Cc: R Help <r-help@stat.math.ethz.ch> > Subject: Re: [R] Different Index behaviors of Array and Matrix > > [I will copy a version of this to R-bugs: please be careful when you reply > to only copy to R-bugs a version with a PR number in the subject.] > > On F...

All, I am new in R. I found sqlSave() doesn't work for our Oracle9i. The following was the message: > sqlSave(channel, USArrests, rownames="state") Error in sqlColumns(channel, tablename) : USArrests : table not found on channel Check case parameter in odbcConnect > sqlQuery() works OK. Please help. Thanks. -MY

Hi, A simple question. I want to assign values to columns (or rows) of a matrix. It seems that AA[,i]<-A; # A is a vector or array; doesn't work. How can I accomplish that? Thanks alot. -MY

Dear all, I tried the following in R: >library(ROracle) >ora <- dbDriver("Oracle") >channel <- dbConnect(ora, user = "scott", password="tiger",dbname="abcdef") >rs <- dbSendQuery(channel, "select * from USArrests") >while(!dbHasCompleted(rs)) { xxx <- fetch(rs, n = 5000) } + + + > xxx Error: Object

Hello, everyone, I am having several basic questions that I haven't found the answer to from the manuals: 1. How to remove "[1]" when a single line message is printed? 2. How to print several variables (e.g., a character string and a numeric variable) at the same line? 3. How to have the control of the accuracy of variables? e.g., in the following, > x<-1134567.1 >

All, In the following, when I just enter R from UNIX and make a connection to Oracle database, dbHasCompleted(rs) is TRUE. This shouldn't have happened since I haven't fetched any thing. Help will be appreciated. -MY --------------------------------------------------------------------- MyUnixMachine% R R : Copyright 2003, The R Development Core Team Version 1.7.0 (2003-04-16) R is

Dear R gurus, When I used outer(x, y, FUN, ...), I got error message when there was matrix multiplications with x or y in FUN. FUN worked fine when x and y were applied to it in FUN(x, y, ...). Is this a bug for outer( )? -MY [[alternative HTML version deleted]]

Hello, everyone, I don't quite understand the following message: > TTT <- t.test(1:10, y=c(7:20)) > class(TTT) [1] "htest" > TTT@p.value Error: Trying to get slot "p.value" from an object whose class ("htest") is not defined > TTT$p.value [1] 1.855282e-05 Why the message says the class of TTT is not defined while class(TTT) gets

Dear all, Can I use "write.table" to append columnns? Thanks for any help -MY [[alternative HTML version deleted]]

Hi, Is there any function that can arrange a character in alphabetic order? Thanks for answer -MY [[alternative HTML version deleted]]

Hi, I have installed R 1.9.0 under Windows XP. When I used "Packages->Install Package(s) from CRAN..." to install the package 'gregmisc', I got this message: > local({a <- CRAN.packages() + install.packages(select.list(a[,1],,TRUE), .libPaths()[1], available=a)}) trying URL `http://cran.r-project.org/bin/windows/contrib/1.9/PACKAGES' Content type `text/plain;

Dear all, I found a difference between the indexing of an array and that of a matrix when there are NA's in the index array. The screen copy is as follows. > A <- array(NA, dim=6) > A [1] NA NA NA NA NA NA > idx <- c(1,NA,NA,4,5,6) > B <- c(10,20,30,40,50,60) > A[idx] <- B > A [1] 10 NA NA 40 50 60 > AA <- matrix(NA,6,1) > AA [,1] [1,] NA [2,]

Hello, I have R1.9.0 under Windows XP. My program plots several plots using x11() par(cex = 0.75) ...... x11() par(cex = 0.75) ...... x11() par(cex = 0.75) ...... x11() par(cex = 0.75) ...... Sometimes, one of them generates a small frame only with title area "R graphics: Device X (ACTIVE)". The message in the console window is Error in plot.new() : Figure margins too large