similar to: Correctly Setting New Seed

Hi, I try to apply a function to subsets of a data.frame. tapply() does the job, but the as output, I am looking for a vector (not an array/matrix) ordered in the same way as the original data, so I can simply cbind the result to the original data.frame. Below is a minimal example. I know that there are packages that can do these things easier, but I'm looking for a fast solution not

Hey, Rers I am new to R and this question may has been asked many times or a very old one.?I have checked the archive but found nothing (maybe I used?the wrong key words).?any advise is appreciated the question is: I try to replace a col vector with some other values, see edu<-matrix(0,1000,2) edu1<-runif(1000,0,1) edu[,1]<-edu1 the colum ?vector?edu[,1]? would?have value

Say I have: > set.seed( 1 ) > m <- matrix( runif(5^2), nrow=5, dimnames = list( c("A","B","C","D","E"), > c("O","P","Q","R","S") ) ) > m O P Q R S A 0.2655087 0.89838968 0.2059746 0.4976992 0.9347052 B 0.3721239 0.94467527 0.1765568

Hi @ all, how do I get the largest or lowest k values of list? It must similar to the min() / max() function, but I just don't get it. Best wishes, Markus

Hi everyone, Does anyone here has experience using MICE to impute missing value? I am having problem to pool the imputed dataset for a MANOVA test, could you give me some advice please? Here is my code: > library(mice) >

Dear R-users, I state that this is for beginners, so you may ignore this in order not to be irritated. By the way, "patience" is another important thing, together with "kindness", we should keep in mind when we teach students and our own children as Jim Lemon pointed out well in the context of the Socratic method. You may know that being kind does not mean giving

I have a 32bit(PAE) CentOS5 machine running (stock CentOS) Xen. I've been using the kernel dummy ethernet driver to create interfaces on the host machine so that I can create internal networks for the guests and host to communicate with each other. The only issue I have with this is that the interface is not >=100MB, but is 10MB. Is there a way I can increase the speed of these

Greetings. These days I find myself writing a lot of functions to handle routine things. One of these is a function to create a scatterplot of variables and draw a lowessed line so I can get some idea if there's any relationship between them. lowessed.plot <- function(x, y) { plot(x, y) lines(lowess(x, y)) } However, there's a slight problem: the plot axes come out labeled

Greetings. I'm trying to recreate in R some regression models I've done in SAS, but I'm not getting the same results. My advisor suspects this may be due to differences in precision between R and SAS. Does anyone know where I can find specifications for R's type double? (It doesn't seem to be in the R Language Definition.) Thanks in advance for any help anyone can

Hi all, Given a data frame: my.df <- data.frame(a = c(1:5, 1:10, 1:20), b = runif(35)) I want to split it by "a" such that I end up with a list containing 3 components i.e. the first containing a = 1 to 5, the second a = 1 to 10 etc. In other words, sets of sequences of a. I can't seem to find the right form using the split function - can you help? Much appreciated. David

Greetings. Is there any way to get R to take a regression model object and draw a plot of the regression function? How about overlaying that plot over a scatterplot of the actual data? Thanks in advance for any help anyone can provide. Aaron ----- Aaron Solomon?? (??ben Saul Joseph??) ??Adelman E-mail??: ??adelmaas at musc.edu Web site??: ??http??://??people.musc.edu??/??~adelmaas??/??

Hi I would like to eliminate a large number of lines of the dataframe df1 The lines to delete are given here by the values of Mat (ex : 2,4,7,10). but I have a large number (300) values of Mat dput(df1) structure(list(Mat = c(1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 11,

Hello I am having an R related problem and can't seem to fix it by looking at any of the online documentation. I have a laptop (using Windows XP home edition) and loaded R 2.2.1. I then designated a mirror (USA-NC). But when I try to load a package, it freezes. I have tried to close R, but it won't close; I end up having to restart the laptop. I have no problems with any other

Greetings. Yesterday I managed to jury-rig a system to get a table out of R and import it into Nisus Writer Express (a word processor for Mac OS X). What I came up with is brittle, since it depends on an AppleScript script which has to be in a specific location and on no one touching the computer, since the AppleScript remotely controls Nisus Writer Express rather blindly and will make

Hi!! This is my first time with llvm. I'm still learning and really need help. I wrote only one Function Pass, which uses another Function Pass (blockNrs), and registered this: RegisterPass<FunctionAnalysis> X("gasched", "Genom Scheduling Pass"); When I compile my sourcecode, everything was okay. But when I tried to test it, i got this error Message: nicole at

Dear R-users, #### below is my code to randomized x three times. > x=c(6,8,9,11) > plan=NULL > for(i in 1:3){ + set.seed(i) + r<-runif(x) + plan=cbind(plan,r) + } ##### which gave the matrix > plan r r r [1,] 0.2655087 0.1848823 0.1680415 [2,] 0.3721239 0.7023740 0.8075164 [3,] 0.5728534 0.5733263 0.3849424 [4,]

Hi, I''m running SLES10 SP1 with xen 3.0.4 and windows 2003 server as guest. Is it possible to assign ips from different networks to Dom0 and Guest, e. g. 172.27.10.1/24 for Dom0 and 172.27.15.1/24 for Guest? I tried it, but I can''t reach the Guest. If it''s possible, what should I have to configure? Thanks! Nicole _______________________________________________

Hello. I am trying to pull out one country from a time series of 5 waves. For example I need Norway from the 5th wave. This is new to me. Typically, I work with country specific surveys. data = norway I have attached a .tiff of the codebook showing the variable names for Norway and the wave. They appear to be Norway = v218 and wave = v15. But perhaps I am wrong and this is part of the

Hello, all. I've been working on this for sometime and was almost at the end/ last chunk of code i would need.... When I received an error. Rather than go to bed and think about it in the morning, I messed with my data and now I am not getting anything. I was up until 4am trying to fix this. Zip files of my data are attached (the data which ends in 'a' matches with wvsA and the

Hello, I have a very simple data set i imported from excel including 96 averages in a column along with 96 standard errors associated with those averages (calculated in excel). I plotted the 95 averages using r and I am wondering if it is possible to plot the second column of standard errors while applying error bars to each value so they represent the error corresponding to each average? thanks,