similar to: "Missing value representation in Excel before

Dear list, How should missing values be expressed in Excel before extraction to R via RODBC. I'm bewildered. Sometimes the representation with NA in Excel appears to work and shows up in R as <NA> but sometimes the use of NA in Excel changes the whole vector to NA's. Blank or nothing or NA as representation for missing values in Excel with dateformat gives NA's of the whole

Dear list, I have some help file for S-Plus 2000 in .d and .sgml format. Is there a way to translate these files to .Rd files to use in an R package? Thanks Fredrik Lundgren

Dear R-gurus, Where can I find a simple logistic regression model which can handle random effects as well among all the R-packages? With thansk in advance Fredrik Lundgren Norrk??ping, Sweden

Dear Guru's, Is there a package (R of course) with programs for diagnostics - roc, sens , spec, kappa etc? Best wishes Fredrik L

Dear R'ers, I use R version 2.10.1 (2009-12-14) Copyright (C) 2009 The R Foundation for Statistical Computing ISBN 3-900051-07-0 and Mac OS X 10.5.8 and use to work in different dierectories. When doing so it appears as if the .Rhistory file from my home directory always is loaded even when I want the file from the directory where I'm working. I have tried to fix it through preferences

I have summary statistics from many sets (10,000's) of near-normal continuous data. From previously generated QQplots of these data I can visually see that most of them are normal with a few which are not normal. I have the raw data for a few (700) of these sets. I have applied several tests of normality, skew, and kurtosis to these sets to see which test might yield a parameter which

Dear R-gurus, When I use methods(general method) I sometimes get 'sub-methods marked with a *. How can see the code of such *-marked methods? Sincerly Fredrik ######################## Fredrik Lundgren fredrik.bg.lundgren at gmail.com Engelbrektsgatan 31 582 21 Link?ping tel 013 - 47 30 117 mob 0706 - 86 39 29 Sommarhus: Ljungn?s 158 380 30 Rockneby 0480 - 650 98

Dear list, Not strictly R ... In R on Xemacs with ESS (R-2.0.1, Xemacs-21.4.15-r3, ESS-5.2.6) on gentoo-linux when I use k<-edit(k) or fix(k) to change a small vector k <- c(1,2,3,4,5,6) the opened window (called '6b8b4567') appears not to be connected to the gnuclient and I'm able to edit the file but has no instructions in the minibuffer and C-x # gives '6b8b4567 does

Let's say I have a data.frame like A B C TS other columns 1 1 1 12345 1 1 1 56789 1 2 1 23456 1 2 2 23457 2 4 7 23458 2 4 7 34567 2 4 7 45678 and I want the last row for each unique combination of A/B/C, where by "last" I mean greatest TS. A B C TS other columns 1 1 1 56789 1 2 1 23456 1 2 2 23457 2 4 7 45678 I did this simply in SAS: proc sort data=DF; by A B C descending TS

R-ers! Referees demand that the line in the KM-curve should be changed to dotted at the point where standarerror is <= 10 %. I don't think it's a good habit but I urgently need to implement such a thing in R with survfit, survplot or another program. They also want numbers at risk below the curve Some help, please.... Fredrik ######################## Fredrik Lundgren

Dear R-ers, I'm using R 2.7.1 Mac OS. What is the best way for update to 2.7.2 to keep my previous libraries? Fredrik ######################## Fredrik Lundgren fredrik.bg.lundgren at gmail.com Obs! Ny adress och mail Engelbrektsgatan 31 582 21 Link?ping 013 - 47 30 117 0706 - 86 39 29 Sommarhus: Ljungn?s 158 380 30 Rockneby 0480 - 650 98

Hello R'ers In previous versions of R (I now use 2.0.1) there was a package "bootstrap". I wrote some programs that depended heavily on this package but can unfortunately not find it on Cran today. Is there any way to find an older version of "bootstrap" and use it with the new version - 2.0.1? Sincerely Fredrik Lundgren Norrk??ping Sweden

Dear R'ers, When I used S-plus i wrote a small program for a Mantel-Haenszel test for trend (I think it worked). Unfortunately I can't get it working in R. It appears as if my use of 'el' is the problem but I can't sort it out. Error in apply(array, c(, 2, 3), function(el) el * 1:s) : argument is missing, with no default Further down in the program I use 'el'

Hello R experts, When I try e. g. example(plot) in R 1.7.0 on Linux, the example graphs rush away on the screen before my eyes. How can I see them one at a time? Sincerely Fredrik Lundgren

Hello, A small problem I can't solve > p <- 0.0001 > p [1] 1e-04 How can I force the printout of p to 0.0001? I have tried 'format', 'round', 'signif', 'print' in different combinations without success. Fredrik Lundgren

Hello, In S-Plus for windows there is a possibility to work with 'scripts' (at least from version 4.5). Is there an equivalent 'function' in R or is there a simular way to work in R Sincerely Fredrik Lundgren -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send

Hello experienced R-ers, I'm converting from S-Plus Win 98SE to SuSE 8.1, R 1.62 and have run into som problems. 1) When I use help.start() netscape comes up OK and all links are accessible except "Search Engine & Keywords" : search doesn't work and the keywords from base doesn't respond either. ?command within R gets netscape running and works OK. 2) I haven't

Hello, In S-Plus Windows you can transform graphics to Powerpoint very easily, in R Windows you can use enhanced metafiles (.emf) and Powerpoint almost as easy. Is there a simular way with R in Linux to transform to the presentation program in StarOffice or OpenOffice or are you stuck with the pdf device? Fredrik Lundgren

Dear R experts, How should lambda and gamma (with std.errors) be calculated for a weibull model with age as an independent predictor? I have assumed that this can be done with survreg with e. g. (summary(survreg(Surv(time, status) ~ age, dist = 'weibull')) ) and predict.survreg with e.g. (predict(model, se.fit = T, newdata = data.frame(age = seq(50, 80, 5)) but unfortunately I'm

Dear R, I have made a package 'myfuncs' of some home made functions and installed it without problems. It contains no C or fortran code and no dynamic link library. Is there a way to edit this package directly from R (or Xemacs with ESS) or do I always have to edit the source and then reinstall the package? I have a weak memory that such editing could be done in S-Plus 2000 or 6.1?