similar to: Header of dataframe

Hi I'm trying to create tables of means, standard deviations and numbers of observations (i) for each laboratory (ii) for each batch number (iii) for each batch at each laboratory for the attached data. I created these functions: summary.aggregate <- function(y, label, ...) { temp.mean <- aggregate(y, FUN=mean, ...) temp.sd <- aggregate(y, FUN=sd, ...) temp.length <-

I am actually trying to write something above the first column ( in the example the column with numbers 1 to 8) is this possible at all? If not, is there another way to make a table which supports this? I am merely using a data frame as a way to create a table I don't need the data to be this data type. Benjamin On 10/26/06, Leeds, Mark (IED) <Mark.Leeds at morganstanley.com> wrote:

Hi all, Is there a function to export a dataframe to a text file? I want to store a large set of data which I have saved in a dataframe in my workspace and copy and past doesn't cut it. Thank you, Benjamin

Hi, I am looking for a way to compare if every element of a vector is > 0. i.e. while(abs(U) > 0) { .. } is there a function for this or do I have to write one? I'd appreciate your help! Benjamin

Hi, is it possible to do this operation faster? I am going over 35k data entries and this takes quite some time. for(cnt in 2:length(sdata$date)) { if(sdata$value[cnt] < sdata$value[cnt - 1]) { sdata$ddtd[cnt] <- sdata$ddtd[cnt - 1] + sdata$value[cnt - 1] - sdata$value[cnt] } else sdata$ddtd[cnt] <- 0 } return(sdata) Thank you, Benjamin

Hi, I am planning on putting some R script in an appendix of a LaTex document. Can anyone recommend me a way of how to format it? Is there a way to keep all line breaks without having to insert \\ in every single line? Thank you! Benjamin

Hi all, why doesn't something like this does not work? speedy <- (sdata$VaR < sdata$DdtdAbs) && sdata$DdtdDuration >= qpois(pct,lambda) && sdata$Ddtd > MinDD or sdata$Ddtd[sdata$Ddtd > 0 && sdata$VaR < sdata$DdtdAbs] sdata looks like this: dataId date value Ddtd VaR DdtdAbs DdtdDuration 18948 79637 2004-07-27 10085.10

Hi, I am new to R and am still trying to get a grip of it. I have data in this format: Run Lab Batch Y 1 1 1 1 608.781 2 2 1 2 569.670 3 3 1 1 689.556 4 4 1 2 747.541 5 5 1 1 618.134 6 6 1 2 612.182 7 7 1 1 680.203 8 8 1 2 607.766 9 9 1 1 726.232 and I want to make a boxplot of the Y values for each

Hi, I'm trying to create a plot using pair. Currently I'm doing the following pairs(~mpg + hp + wt , data=cars, labels = c("Miles per Gallon","Horsepower","Weight"),pch = c(24,25)[unclass(cars$tr + 1)], bg = c("red", "green3")[unclass(cars$tr + 1)],panel=panel.smooth) for the attached dataset. However,instead of using panel.smooth I

Hi, suppose I have a time series rt. Why does this code not work? rt <- data n <- length(rt) - 2 at <- vector(length = n) at = rt-(3.75101e-04 + 9.61877e-02 * rt[-1] - 2.48071e-02 * rt[-2]) Thank you, Benjamin

Hi, how do I create a coef.table as for example returned by summary.glm? I don't see where the significance codes are assigned during summary.glm. Thank you, Benjamin

Hi, I'm trying to find the maximum (likelihood) of a function. Therefore, I'm trying to minimize the negative likelihood function: # params: vector containing values of mu and sigma # params[1] - mu, params[2]- sigma # dat: matrix of data pairs y_i and s_i # dat[,1] - column of y_i , dat[,2] column of s_i negll <- function(params,dat,constant=0) { for(i in 1:length(dat[,1])) {

Hi, I am trying the following: library(ismev) library(evd) fit <- gev.fit(x,show=FALSE) ks.test(x,pgev,fit$mle[1],fit$mle[2],fit$mle[3]) but I am getting: Warning message: cannot compute correct p-values with ties in: ks.test(x, pgev, fit$mle[1], fit$mle[2], fit$mle[3]) where x is: [1] 239 38 1 43 22 1 5 9 15 6 1 9 156 25 3 100 6 [18] 5 100

gReetings: Is there any way to download a (or a sample of a) crossection of stock market prices? Or is it possible to use get.hist.quote with a *wild card*? Thanks, mihai Mihai Nica 170 East Griffith St. G5 Jackson, MS 39201 601-914-0361 ____________________________________________________________________________________ 8:00? 8:25? 8:40? Find a flick in no time [[alternative HTML

Hi Has someone got a package/script at hand to do a historical simulation to calculate the Value at Risk? If your not sure what Historical Simulation is: In simple terms, Historical Simulation (HS) is just taking sample percentiles over a moving sample. Suppose we want to use HS to predict a portfolio's Value-at-Risk at a confidence level of 99 percent and the window size is chosen to be 250

Dear r-users! I would like to cross two data frame which have the same row number but different in the number of column. Can anybody help me for this case ? Thanks a lot in advance -------------------------------------------------------------------------------- Majid Iravani PhD Student Swiss Federal Research Institute WSL Research Group of Vegetation Ecology Z?rcherstrasse 111

Greetings: Using 'identify' to label points on a plot works just fine. However, when saving under 'metafile' or using the clipboard the labels dissapear. I believe it's an SDI issue. I am running last R with last Tinn-r under XP up to date. Anything I can do besides going back to MDI :-)? Thanks, Mihai Nica, ABD Jackson State University ITT Tech Instructor 170 East Griffith

gReetings: I apologize for the non-programming language. I found what seems to be a strange behavior of plot(). The code follows: #_____________________________ N=3030; gn=.04; tn=1:100 n=N/(1+(N-1)*exp(-gn*tn)) N=n*(1-exp(-gn*tn))/(1-n*exp(-gn*tn)) plot(N) #strange plot N N=rep(3030, 100) plot(N) #behaves as expected ________________________________ Windows XP, R 2.4.0. or 2.4.1 Thanks,

_______________________________________________________________________________________ Hi, When I create multiple graphs subsequent graphs overwrite previous graphs. How do I keep all my graphs in the current workspace (but not all on the same page) so I can scroll through them? thanks, Rohini Rohini Mulford Senior Research Analyst Technical Research Research &

Do any of you know any simple programming editors for R scripts which offer basic colour-coding and bracket-matching facilities? Dregging through scripts to find a missing comma or parentheses is something I'd rather do less of... Jon Minton [[alternative HTML version deleted]]