similar to: headers needed in gcc

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

In some languages there is a function gensym() which returns a new unique name (in the current environment). This is quite helpful when one has to do temporary assignments. I could not find such a function in R. Is there one? -- 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

hist(rbinom(1000,10,0.5),col=2,xlim=c(0,10),ylim=c(0,300)) gives a histogram with "touching bars" hist(rbinom(100000,10,0.5),col=2,xlim=c(0,10),ylim=c(0,30000)) gives a histogram with space between the bars. is there a way to control the space betweent he bars easily? -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at

In the windows version (RGui), is there a way to set the text displayed in the titlebar of the R window? When I have 2 instances of RGui running, it would be helpul if the titlebar could help to understand which is which. -- 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

typeof applied to a factor always seems to return "integer", independently of the type of the levels. This has a strange side effect. When a variable is "imported" into a data frame, its type changes. character variables automatically are converted to factors when imported into data frames. Here is an example: > v1<-1:3 >

when i do print(date()) the output is [1] "Wed Sep 29 09:13:04 1999\n" ios it on purpose the the linfeed is shown as abbreviation and not done? -- 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 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-

I need to define a small helper function which should not be listed by ls(). What is the best and cleanest way of achieving this? -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386

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

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

doing make -f Makewfile.win test-Internet in tests gave make[1]: Leaving directory `/cygdrive/d/Work/R-devel/tests' D:/Work/R-devel/bin/Rterm --vanilla LC_ALL=C --internet2 --vanilla < internet.R > internet.Rout2 diff internet.Rout internet.Rout2 99,100c99,100 < unable to resolve 'foo.bar'. < Error in url("http://foo.bar", "r") : cannot open URL

i want to call "c:/Program Files/Netscape/Communicator/Program/netscape.exe" with system but system("c:/Program Files/Netscape/Communicator/Program/netscape.exe") does not work because of the blank. system('"c:/Program Files/Netscape/Communicator/Program/netscape.exe"',wait=FALSE) works exactly like i want. when i set options(browser="c:/Program

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

i am using the rarcinfo package to draw maps. for maps, th aspect ratio is quite important. how can i control the aspect ratio and the size of a graphics window in the mswindows version of R and more generally in R in general. i would like to e able to both set the size before or while the window is corrected, and also for a window which already exists. -- -- Erich Neuwirth, Computer Supported

It would be convenient to have something like Rgui runfist="myfunction()" in Windows. The reason: AFAIK Rgui does not accept piped input (RGui < myfile.R does not seem to work). A solution could be to put a few fuctions in Rprofile and then give the name for one of these functions to be executed at startup as a command line parameter to Rgui. Can something like this be done? --

It would be convenient to have something like Rgui runfist="myfunction()" in Windows. The reason: AFAIK Rgui does not accept piped input (RGui < myfile.R does not seem to work). A solution could be to put a few fuctions in Rprofile and then give the name for one of these functions to be executed at startup as a command line parameter to Rgui. Can something like this be done? --

we still do not have dynamic graphics in R natively. i just found out about a widget library called fltk info is at www.fltk.org it has all the stuff r currently can do only through tcl/tk or (as i do it) excel: sliders, knobs, spinners and so on. it is multiplatform, there are production versions for unixen and windows, and there is a beta for macs. this could be a way of getting some of

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 installed r for window 1.2.1 and suddenly rcmd build does not work any more. C:\work\checked.out>rcmd build Please set TMPDIR to a valid temporary directory C:\work\checked.out>echo %TMPDIR% C:\Documents and Settings\Erich Neuwirth\Local Settings\Temp and this is a valid directory. things worked smoothly in 1.2.0 what can i do? -- Erich Neuwirth, Computer Supported Didactics

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