similar to: Loading .RData from Internet

this is the problem: load this R data frame over the internet and save it to your hard drive. http://rss.acs.unt.edu/Rdoc/library/twang/data/raceproling.RData please show how to save a dataset of males only (the variable male=1) to a new dataframe. Then do the same thing for females (male=0). Then show how to recombine the two datasets to belike the original one except that the female

Dear All If I have the following dataset V1 V2 x y y x z b a c b j d l c o How do I use R command to get the total number of different letter in column "V1" column "V1" has 7 different letters. Thank you -- View this message in context: http://r.789695.n4.nabble.com/Summing-up-Non-numeric-column-tp3077710p3077710.html Sent from the R help mailing list archive

Hi all, i am looking to built a simple example of a very basic propensity score adjustment, just using the estimated propensity scores as inverse probability weights (respectively 1-estimated weights for the non-treated). As far as i understood, MLE predictions of a logit model can directly be used as to estimates of the propensity score. I already considered the twang package and the

Hello everyone Can you please teach me how to save my homework as .R file? I write my code in RGui. When I tried to save my work, the RGui only allows me to save it as .RData. By the way, after I save my work as .RData, I cannot reopen it. when I open it, only one message comes out as following: "ARGUMENT_ignored_." -- View this message in context:

Hello everyone Can you please teach me how to save my homework as .R file? I write my code in RGui. When I tried to save my work, the RGui only allows me to save it as .RData. Is there any difference between .R and .RData? By the way, after I save my work as .RData, I cannot reopen it. when I open it, only one message comes out as following: "ARGUMENT_ignored_." -- View this

The Toolkit for Weighting and Analysis of Nonequivalent Groups (twang 1.0) has been released to CRAN. The package collects functions useful for computing propensity score weights for treatment effect estimation, developing nonresponse weights, and diagnosing the quality of those weights. The package includes a vignette containing some basic theory and walks through two examples. It is available by

Hi R-help, I am working with US COOP network station data and the files are concatenated in single rows for all years, but I need to pull these apart into rows for each day. To do this, I need to extract part of each row such as station id, year, mo, and repeat this against other variables in the row (days). My problem is that there are repeated values for each day, and the files are fixed width

Looking for the DCT function, but don't see it in the signal pkg. http://rss.acs.unt.edu/Rdoc/library/signal/html/signal.package.html http://rss.acs.unt.edu/Rdoc/library/signal/html/00Index.html As I understand it, the 'signal' functions are ports of the corresponding matlab/octave code, where the DCT exists. Did I miss it (different name?) or is someone working on a port for

Please Note: Email below was bounced back (rejected by the Packages email list moderator), so please do not ask me to submit to r-packages@r-project.org<mailto:r-packages@r-project.org>. Members, I recently submitted my first package to the submissions ftp site on CRAN (7.3.09). The package has remained on the server since with no action? Do package review/updates occur monthly? When I

Hello, How can I read a xlsx file using xlsx package? Thanks Albert [[alternative HTML version deleted]]

As I read this, my answers to the other guys don't seem to be delievered to the list, although I sent them nearly 4 hours ago. I fear, I only sent them to the posters and not to the list ... I try to correct this! Sorry! Axel Benz schrieb: > Which name do you want? > varA1 This one resp. the corresponding one in this way (varA2 etc.). > or > fb.12.unt[varA1] > or even then

Greetings all: I have to create a graph that has very specific dimensions for publication purposes. The graph is a semilog scaled graph and the axes must range from 1 to 1,000,000 on the y axis and 0 to 100 on the x axis. The x axis should be exactly 8 inches and the y axis should be exactly 5.25 inches. I've been able to set the plot area to 8 x 5.25 using the par(pin=c(8,5.25)). The

Dear R experts, I really have difficulty when I try to deal with this question. suppose X is a square symmetric matrix. The exponent of X is defined by the matrix limit as following: exp(X) = lim (I + X/n)^n, note: the limit is from n to infinite. How can I write R function for the above? Thank you very much -- View this message in context:

It looks from str(SA) that Response IPS1 is a data.frame of class "anova", which probably cannot be coerced to vector. Maybe you can use unlist() instead of as.vector() Or something like SA[["Response IPS1"]]["as.factor(WSD)",] ## to select the first row only, even maybe with unlist() Without a better REPRODUCIBLE example, I cannot tell more (maybe some others

Hi, how can I tell 'summary' to print the name of the summarised variable? This is probably an awkward newbie question but I didn't find an answer in the Docus, the FAQ and maillist archive. I want a summary for about 250 variables and realise it the following way (I know, that I shouldn't use iterations that way in R; but at the moment it's the easiest way for me):

Dear users, I have looked on different sources and found different functions to prompt the user to provide input. However, I couldn't find one that does exactly what I'm looking for. select.list() and menu() are nice because a graphic window appears to prompt the user. However, the user can only choose from a predefined list of choices. readline() and scan() are more free in the

It's often difficult to figure out what a problem data set looks like when someone pastes a mess of output from R into an e-mail. The dput command, used judiciously?I would hope no one would send a 1 M data set?can make life much easier. I wonder if it would be useful to add a hint in the instructions at the bottom of the posting page, where the list asks for self-contained reproducible

Hi all, Does anyone know what happened to the dna library or the dotmatrix function? For the life of me, I can't find it anywhere with the exception of this reference: http://rss.acs.unt.edu/Rdoc/library/dna/html/dotmatrix.html Thanks! Jeff. http://www.nd.edu/~jspies/ [[alternative HTML version deleted]]

Dear Experts, The following is my "Iterator". When I try to write a new function with itel, I got error. This is what I have: > supDist<-function(x,y) return(max(abs(x-y))) > > myIterator <- function(xinit,f,data=NULL,eps=1e-6,itmax=5,verbose=FALSE) { + xold<-xinit + itel<-0 + repeat { + xnew<-f(xold,data) + if (verbose) { + cat( +

Hi. In a data set I have a variable that takes values from 1 to 14. For each subgroup of values of this variable, I would like to obtain some descriptive statistics of other variables present in the data set. I've been trying with a "for" loop but I couldn't get nothing. Could you please suggest me some lines? -- View this message in context: