similar to: how to profile R interpreter?

I do not know if this has been reported already (I searched the headers of the recent messages to r-devel) It seems that 'example' in R 2.11.0 has a problem when the help file does not contain any example. This is what happens on R 2.11.0 on Windows XP. > library(tools) > example(Rdiff) Error in file(con, "r") : cannot open the connection In addition: Warning message: In

I wrote a R script say called computeCovarMatrix.R and i want to call and run this piece from Excel visual basic. does anyone know how to do that? thanks, KZ [[alternative HTML version deleted]]

Hello!!! I have been read a much about as read data from Excel File, but I haven?t found the necesary information to read the data. Now, I can create a channel : channel <- odbcConnectExcel("file.xls") but I don?t know as read the data?? I hope that you could help me. Thank you very much. -- View this message in context:

I have a big contingency table, approximately of size 60*2*500*500, and I need to count the number of cells containing a count of 1 for each of the factors values defining the first dimension. Here is my attempt: tab1<-with(pisa1,table(CNT,GENDER,ISCOF,ISCOM)) tab2<-apply(tab1,1:4,function(x)ifelse(sum(x)==1,1,0)) tab3<-apply(tab2,1,sum) Computing tab2 is very slow. Is there a faster

Dear R users, I've just posted a similar question about Illustrator. This time I would like to export the results of my statistic tables and my dataframes into Excel files. Up to now I've used write.csv(), but I have to resave every file in .xls in Excel. I would like to know if there is a function or package to export directly into *.xls. I have found xlsReadWrite which would be

Is this warning given on purpose? > myconn<-textConnection("print(11*11)") > source(myconn) [1] 121 Warning message: In source(myconn) : argument 'encoding = "native.enc"' will be ignored Could it be omitted, since the docs state that encoding is only use if the corresponding argument is a file name or url? -- Erich Neuwirth, University of Vienna

My configuration is Windows XP, R-2.5.1patched. My standard browser in Windows is Firefox 2.0.6, and I am using htmlhelp. I have problems with starting the browser for displaying help. help("lm") works as it should when Firefox is already running. When I do help("lm") and the browser is not yet started, I get Error in shell.exec(url) :

I have problems with Rpad and R 2.10.0 (Windows XP and Windows 7, browser is Firefox) Just starting Rpad by library(Rpad) Rpad() opens the browser and displays the .html files and the .Rpad files in my home directory, but these files do not have links and are not clickable. Doing the same in R 2.9.2 gives clickable links in the browser. Furthermore, in both cases an empty graphics window

Hello, I am very new to R and data analysis in general. I am trying to generate values to append to my data frame using conditional statements. I am playing with this simple example: a <- c(1:4) b <- c("meep", "foo", "meep", "foo") d <- cbind(a, b) now what I want to do is , each time there is a "meep" in column 2 of d, print

Is there code for bivariate kernel density estimation? For bivariate kernels there is kde2d in MASS kde2d.g in GRASS KernSur in GenKern (list probably incomplete) but none of them seems to accept a weight parameter (like density does since R 2.2.0) -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at

A common process when data is obtained in an Excel spreadsheet is to save the spreadsheet as a .csv file then read it into R. Experienced users might have learned to be wary of dates (as I have) but possibly have not experienced what just happened to me. I thought I might just share it with r-help as a cautionary tale. I received an Excel file giving patient details. Each patient had an ID

I am reading dates in Excel2007 into R. Here are the functions I used: library(RODBC) channel<-odbcConnectExcel2007("myfile.xlsx") tmp<-sqlFetch(channel,"1",as.is=T) The dates in myfile.xlsx are all in this format: mm/dd/yyyy. But when I read it to R, some columns look like "yyyy-mm-dd 00:00:00", some columns look like "yyyy-mm-dd", and some

I just uninstalled R 2.7.2 on Windows XP after having installed R 2.8.0 The uninstaller removed the String values HKEY_LOCAL_MACHINE\SOFTWARE\R-core\R\Current Version HKEY_LOCAL_MACHINE\SOFTWARE\R-core\R\InstallPath despite the fact that they pointed to R 2.8.0 The uninstaller did not remove the key HKEY_LOCAL_MACHINE\SOFTWARE\R-core\R\2.7.2 (and all the values in that key) I think the

Hello, I was trying to build some functions which I would like to integrate over an interval using the function 'integrate' from the 'stats' package. As an example, please consider the function h(u)=sin(pi*u) + sqrt(2)*sin(pi*2*u) + sqrt(3)*sin(pi*3*u) + 2*sin(pi*4*u) Two alternative ways to 'build' this function are as in f and g below: coeff<-sqrt(1:4)

some of you might be interested. i just uploaded the first release of my r-excel interface package to CRAN. it is in contributed extensions nonstandard extensions erich neuwirth -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386

some of you might be interested. i just uploaded the first release of my r-excel interface package to CRAN. it is in contributed extensions nonstandard extensions erich neuwirth -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386

Dear all, does anyone know if it is possible to connect a Windows RExcel instance to a linux R instance? Within Rexcel, I find the option "Remote Server Address", but I wonder what the installation procedure on my linux (ubuntu) R looks like (if possible at all)? Thanks Philipp

Hello, I'm trying to subset a dataframe where I have many observation taken in different years. I would like to subset the dataframe (in this example called "table") to get a new dataframe containing only the observation of year 1995, 1998 and 2000. I've tried to use subset and the or operator "|" like this: subset(table, year==1995|1998|2000)-->table2 but the

Hello: First, RExcel completely rocks! Hat tip to the development team. However, I don't understand something very basic about it. Suppose I put the following code in two cells and choose the Run Code option plot(runif(20),runif(20)) text(.5,.5,"Hello") I get the expected plot. HOWEVER, if I put the following in a cell and hit Run Code, I get nothing. runif(20) HOWEVER, If I

I am looking for information on experimentation with the use of R in the teaching of statistics and science in schools. Any leads would be very welcome. I am certain that there is such experimentation. I've made this inquiry on r-sig-teaching, with no response. John. John Maindonald email: john.maindonald at anu.edu.au phone : +61 2 (6125)3473 fax : +61 2(6125)5549 Centre