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Dear friends. When using in windows version the menu function to change directory, what actions are actually performed, i.e. what commands could I write to a file to make a CD ? I couldn't find it mentioned anywhere - undoubtedly an oversigth on my part. Troels Ring, M.D Department of Nephrology Aalborg, Denmark tring at mail1.stofanet.dk

Thank you to Peter Dalgaard, who provided help for some of this solution. It is still not ideal since the dots which are equidistant in the x-direction ideally should respect the reciprocal scale in the y-direction. op <- par("cex"= 0.7) x<-y<-NA plot(x,y,xlim=c(0,10),ylim=1/c(2000,70), axes=F) box() axis(1)

Dear friends. I wanted to reproduce a sheet of paper useful for plotting the reciprocal of some biochemical variable (creatinine) over time (Bleyer Am J Kidney Dis 34:576-578,1999). Time on X axis with units years and months. On Y axis, 1/creatinine, but with the original creatinine value indicated - to make it easier for people to use it. When using the graph, the linear decrease in 1/crea over

Dear friends. I have trobpe with path. Below I have tried to paste a path and file name but it will not work > path <- "D:/rw0641/own/own/procedures/GFR_TIME" > path [1] "D:/rw0641/own/own/procedures/GFR_TIME" > path1 <- paste(path,"gfr.txt",sep="/") > path1 [1] "D:/rw0641/own/own/procedures/GFR_TIME/gfr.txt" -- this is good

move or copy the directories mass, nnet and class to the library directory - then execute link.html.help() Now execute library(MASS) and data(petrol) Should work. "Troels Ring"

Dear Douglas Bates. I just downloaded the compiled version (I'm a poor Windows devil, not yet having found the time to move to a more advanced platform...) from NT- the files are dated 30.5-1999 so they are not old - and the problem persisted....wonder what I did wrong ? R : Copyright 1999, The R Development Core Team Version 0.64.0 Patched (May 3, 1999) R is free software and comes with

Dear friends. In the documentation for PAR it is specified that "las" allowing turning axis labels away from default=parallel to axis is not implemented. I need to make graphs with horizontal Y axis labels - how to ? I'm using win98. Thank you in advance. Sincerely yours Troels Ring, MD Department of Nephrology Aalborg Hospital Aalborg Denmark

Dear friends. I would like to link an object file made in C. Dyn.load rather wants to link a whole library and I only wanted to link this small object file. I followed instructions given for S - by Clive Loader in his software for changepoint handling and it is his object file I made from http://cm.bell-labs.com/cm/ms/departments/sia/clive/smcp.shar Any dirty tricks or easy oversights ? Yours

Dear friends. I just downloaded tseries dated 27.10.99 (from Aalborg, Denmark) and it seems it lacked something, library ts was not available ? What to do ? > library(tseries) Loading required package: ts Warning: There is no package called `ts' > > Best wishes Troels Ring, M.D Department of Nephrology Aalborg, Denmark tring at mail1.stofanet.dk

Dear friends. I tried the session below with 10 MB in both vsize and nsize but didn't get the example work. Is this a problem in LME or in me or both or somewhere else or undefined ? R : Copyright 1999, The R Development Core Team Version 0.64.0 Patched (May 3, 1999) R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type

Dear friends. On the Bayesian averaging homepage http://www.research.att.com/~volinsky/bma.html I found some S code some of which perhaps may run in R. There was a call to an algorithm possibly within S but not supported by R 64.1: "leaps and bounds". I guess it is a minimization step. Can anyone clarify the algorithm and perhaps even give a pointer to some code ? I guess this may be

Dear friends. Can anyone explain what is happening here ? I am told that no data entry editor is available in this version of R ? The example is not far from that shown in help(data.entry) ? Besides, could an empty spreadsheet entry be an option to start inputting data ? R : Copyright 2000, The R Development Core Team Version 1.0.0 (February 29, 2000) R is free software and comes with

Dear friends. Do Polr in Mass change the sign of the coefficients ? Example (McCullagh 1980) options(contrasts=c("contr.treatment","contr.poly")) library(Mass) freq <- c(19,29,24,497,560,269) yy <- ordered(gl(3,1,6)) z4 <- polr(yy~x,weights=freq) > z4 Call: polr(formula = yy ~ x, weights = freq) Coefficients: x2 -0.6026492 Intercepts: 1|2

Dear friends, regression towards the mean is interesting in medical circles, and a very recent paper (The American Statistician November 2007;61:302-307 by Krause and Pinheiro) treats it at length. An initial example specifies (p 303): "Consider the following example: we draw 100 samples from a bivariate Normal distribution with X0~N(0,1), X1~N(0,1) and cov(X0,X1)=0.7, We then calculate

Dear friends. As promised ver 1.01 solved the former problem and now dates plot OK in windows. But. In the following code, "cex.axis"=0.5 works OK but "xaxp"=c(14620,14680,4) has seemingly no effect. The limits for xaxp was found from the default plot and inspecting par(). I need to put the date marks at specific points. Could I suppress them altogether and make a new xaxis

Dear friends. I've made a very simple procedure to make Bland-Altman plots and it works OK except for the inability to take a variate as argument in annotation. I'm sure it is a very simple error, so if you have 5 seconds please tell me. Best wishes Troels bland <- function (x) #accepts two columns { mn <- 0.5*(x[,1]+x[,2]) diff <- x[,1]-x[,2]

Hi, I'm using windows xp and R 2.8.0 - I wonder what is the command to put in a script that has the same effect as when in a plot you choose menu "History" and "Recording". Best wishes Troels -- Troels Ring - - Department of nephrology - - Aalborg Hospital 9100 Aalborg, Denmark - - +45 99326629 - - tring at gvdnet.dk

Hi Troels, Its in the incoming directory: ftp://ftp.ci.tuwien.ac.at/incoming Try this for a nice demo: > library(timeslab) > arma(alpha, beta, x, 2, 4, 3, 0.2,500, 30,0) Bernd On 01-Jan-99 Troels Ring wrote: > Hi Johannes Wuebben and a happy new year. > Where did you actually put the timeslab ? > Yours > > Troels Ring, MD > Department of Nephrology

Dear friends - I'm on windows, R 2.7.0 I try again asking if anyone can explain why a single pig of 16 makes so wild swings. Warnings are issued, and they are 1: pseudoinverse used at 482.1 2: neighborhood radius 242.1 3: reciprocal condition number 0 4: at 360 5: radius 14400 6: all data on boundary of neighborhood. make span bigger 7: There are other near singularities as well. 14400 8:

dear friends - I have an ordered factor, ID, in a data.frame, labs, and make a table, aa <- with(labs,table(val >150,ID)) - and now the order in the table is according to the alphabetic order in ID, and not as I want it. I have tried adding [order(unique(labs$ID)] but it doesn't help. I have R 2.7.1 on WinXP. Best wishes Troels -- Troels Ring - - Department of nephrology - -