similar to: NA points in loess function

Could anyone please explain to me why the following writes nothing into "all.Rout" file? If the "for" loop is removed, t.test output can be written into "all.out". Thanks in advance. Minghua Yao ...... zz <- file("all.Rout", open="wt") sink(zz) for(i in 1:n) { Cy3<-X[,2*i-1]; Cy5<-X[,2*i]; t.test(Cy3, Cy5)

All, Anybody can tell how to export a R plot onto Word (or Power Point)? Many thanks in advance. -MY

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

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

Dear all, I have the following output generated by linear regression. Since there is only one regression intercept and one slope for one set of data, what is the meaning of std. error for intercept and that of slope? Thanks in advance. Sincerely, Minghua > data(thuesen) > attach(thuesen) > lm(short.velocity~blood.glucose) Call: lm(formula = short.velocity ~ blood.glucose)

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

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

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

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

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;

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]]

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

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 >

Dear all, Could anyone please tell me how to sort a matrix or a data frame against a column/row/component? Many thanks. -MY

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

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

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 List, I have a longitudinal samples on multiple individuals, for initial analysis, i am doing some plots to see how the variable changes with the age. In some of the individuals one or two data points are missing, IL1Ra Age.at.Sample.Collection Subject.ID 6.575466 2.004106 00709-0 NA 2.162902

Hi, I'm trying to normalize data by fitting a line through the highest density of points (in a 2D plot). In other words, if you visualize the data as a density plot, the fit I'm trying to achieve is the line that goes through the "crest" of the mountain. This is similar yet different to what LOESS does. I've been using loess before, but it does not exactly that as it takes

Apart from the inconsistencies, there are two clear bugs here: 1) miscalculating the number of values needed, in the matrix case. E.g. > AA[idx, 1] <- B[1:4] Error in "[<-"(`*tmp*`, idx, 1, value = B[1:4]) : number of items to replace is not a multiple of replacement length although only 4 values are replaced by AA[idx, 1] <- B. 2) the behaviour of the 3D case.