similar to: Several Basic Questions

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

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

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)

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)

Gurus, I used predict(loess(Y~X)); where Y and X are of the same length. But there are same NA's in both Y and X. Those NA's are in the same locations in Y and X. The following is the error messageI got: Error in "[<-"(*tmp*, , i, value = predict(loess(Y~X))) : number of items to replace is not a multiple of replacement length If I replaced the NA's with a

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, 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]]

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

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]]

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

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

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

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.

I have made the 3-d case do the same as the vector case, which is what the C code clearly intended (a goto label was in the wrong place). This leaves the bigger question of the right thing to do. I note that data frames give an error when any indices are NA. -thomas On Fri, 3 Sep 2004 ripley@stats.ox.ac.uk wrote: > Apart from the inconsistencies, there are two clear bugs here: > > 1)

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]]