similar to: sampling from data frame

Dear list, I use Sweave almost exclusively for writing papers, and I have become quite spoiled by the excellent xtable export facilities. Has anybody written an xtable method for the Anova function in CAR, or has anybody used a different set of functions to import Anova results into a table in an Sweave document? If not, any handy hints on how to write a good homebrew based on the output of Anova

Hi, first of all: I'm not only new to R, but also to S. I hope this is the right forum for asking the following very stupid questions: a) is there a straightforward way of saying for all factors f in a data frame { any old function, e.g. max(f) } b) how can you construct a new data frame d' from a given data frame d which contains only rows with [X=="A"] (x is

Hello. I have been browsing the R- manual and not seen any direct implementation of Factor analysis. Is there anyone out there who has run Factor Analysis with R? Thanks Michael -- Michael Preminger Forsker / Research Scientist Avdeling for journalistikk, bibliotek- og informasjonsfag / Faculty of Journalism, Library and Information Science H?gskolen i Oslo / Oslo College

I ran into the following error message : ---snipp--- Call kernel32.495: LoadLibraryA(102951c8 "ctmp3Lib.dll") ret=1025f5ad fs=008f Call kernel32.922: __wine_register_dll_16(418ff5ac) ret=418bd4f0 fs=008f Ret kernel32.922: __wine_register_dll_16() retval=418ff5ac ret=418bd4f0 fs=008f err:win32:fixup_imports No implementation for NTDLL.dll.3(IoUnregisterDeviceInterface), setting to

As a complete newcomer I am attempting to learn to use R, but am finding it extremely difficult because I have not yet found an "Introduction to R". For over a week now I have monitored the R-help list, studied the R-FAQ and related documents, downloaded and run the Windows R and looked at the Help, downloaded early and late samples of the R-help archives, and searched for illuminating

Hello, I am trying to get the output from the numerical simulation of a system of ordinary differential equations for a range of values for three parameters. I am using the ode() function (deSolve package) to run the numerical simulation and apply() to run the simulation function for each set of parameter values. I am having trouble getting the apply() function to work. Here is an

Hi everyone, In the last few days I've spended hours and hours on the web surching for a solution to my problems. Eventhough it looked like there where several other people having the same problem I couldn't find a way to solve it. Therefore I'm hoping that one of you could help me with the following problem. I've installed Samba 3.0.14a on RedHat 9.0. Samba is working perfectly.

Hi, Given that R reports Type I sums of squares, isn't it a bit anachronistic that it re-orders terms in formulae? > d <- expand.grid(y=rnorm(8), + A=factor(c(1,2)), + B=factor(c(1,2)), + C=factor(c(1,2))) > summary(aov(y ~ A+B+A:B+C,data=d)) Df Sum Sq Mean Sq F value Pr(>F) A 1 8.294e-34 8.294e-34 1.027e-33 1

I have a statistical problem which has given me no end of grief recently, and am posting here in the hope that somebody can give me a straight answer. I'm a IT postgrad, not a statistician, so people may have to speak really slowly and clearly for me to get it :) I am collecting simulation data, and the results are geometrically distributed (or approximately so). From what I can gather

I have 20 variables: 5,9,6,1,5,9,7,4,5,6,3,2,4,8,9,6,1,8,4,8 How do I calculate the corresponding quantiles from a normal distribution with the same mean and variance as the sample? Also, how do I draw a QQ plot of the data? Thanks for any help! -- View this message in context: http://www.nabble.com/Quantiles-and-QQ-plots-tf4925742.html#a14097909 Sent from the R help mailing list archive at

I have a function that does some plotting. I then add lines to the plot. If executed one line at a time, there is not a problem. If I execute the function, though, I get: Error in ans[[1]] : subscript out of bounds This always occurs after the second lines command, and doesn't happen with all of my data points (some do not have errors). Any ideas? Thanks, Sean

Hi List, My goal is to force R not to print in scientific notation in the sixth column (rel_diff - for the p-value) of my data frame (not a matrix). I have used the format.pval () and printCoefmat () functions on the data frame. The R script is appended below. This issue is that use of the format.pval () and printCoefmat () functions on the data frame gives me the desired results, but coerces

Hi, by replacing 'll' with 'wh' in the source code for base::which() one gets ~20% speed up for *named logical vectors*. CURRENT CODE: which <- function(x, arr.ind = FALSE) { if(!is.logical(x)) stop("argument to 'which' is not logical") wh <- seq_along(x)[ll <- x & !is.na(x)] m <- length(wh) dl <- dim(x) if (is.null(dl)

Dear all, I have a dataframe of names (netw), with each cell including last name and initials of an author; some cells have NA. I would like to extract only the last name from each cell; this new dataframe is calle 'res' Here is what I do: res <- data.frame(matrix(NA, nrow=dim(netw)[1], ncol=dim(netw)[2])) for (i in 1:x) { wh <- regexpr('[a-z]{3,}',

Dear All, wonder if you have thoughts on the following: let us say we have: df<-data.frame(a=c(1,2,3,4,5,1,2,3,4,5,6,7,8),b=c(0,1,2,3,4,0,1,2,3,4,5,6,7)) I would like to rewrite values in column name "a" based on values in column name "b", where based on a certain value of column "b" the next value of column 'a' is prompted, in other words would like

Hi all! The following code (executed in console)... somevar <- data.frame(v1 = 1:5, somestring = 6:10, v3 = 11:15, v4 = 16:20); somevar %>% gather(key = var, value = val, which(names(somevar) == "somestring"):length(somevar)) %>% head(2); throws... Error in which(names(somevar) == "somestring") : could not find function "which" if I change

Does anyone have any general tips on how to get programs to work on Wine? I hear lots of success stories for various programs which I have failed to get working on my own machine. But then again, my own version of wine is a bog-standard installation without any special adjustments made to it. What are the steps usually taken to attempt to get a program to run under Wine? Or is that too

the original message looks like it was corrupted when it got to the list, so here's another try ... -----Original Message----- From: Tim Wolters Sent: Sun 11/10/2002 10:55 AM To: samba@lists.samba.org Cc: Subject: nmbd help please I've been working on this for about a week now and can't seem to figure out the magic configuration that will make my Samba server work.

Dear list, I am trying to look at the function inside a package. I know that methods() would do the trick, but what if the function is hidden? I have a problem displaying the hidden function. Say, for example the MCMC package. How do you view the code of that function? something like this: > which function (x, arr.ind = FALSE, useNames = TRUE) { wh <- .Internal(which(x)) if

Your specification is a bit unclear to me, so I'm not sure the below is really what you want. For example, your example seems to imply that a and b must be of the same length, but I do not see that your description requires this. So the following may not be what you want exactly, but one way to do this(there may be cleverer ones!) is to make use of ?rep. Everything else is just fussy detail.