search for: borgulya

...run /tmp/R-base-1.7.1-1.i386.rpm INSTALL Installing "/tmp/R-base-1.7.1-1.i386.rpm" error: failed dependencies: libg2c.so.0 is needed by R-base-1.7.1-1 Could anyone tell me how to go on, where to find the missing file/package and what to do with it? Thank you G?bor -- Gabor BORGULYA MD MSc Semmelweis University of Budapest, 2nd Dept of Paediatrics Hungarian Paediatric Cancer Registry phone: +36 - 1 - 4591500 / 2834

Dear All, I couldn't figure and couldn't google out how to make construct a pair of \Sexpr s or a LaTeX macro that would include 5\cdot 10^{-12} into the LaTeX output istead of 5e-12 . Any ideas? Thank you G?bor

...t; filename<-"csoportok_l?lek_?s_esetsz?mai.csv" > d=read.csv2(filename) > The special characters are accepted inside strings, but not as names of variables. Could you tell me what to set in R to make it accept these special characters as names? Thank you, G?bor -- Gabor BORGULYA MD MSc Semmelweis University of Budapest, 2nd Dept of Paediatrics Hungarian Paediatric Cancer Registry phone: +36 - 1 - 4591500 / 2834

Dear R-help list, I have a problem with the tick marks of a Kaplan-Meier survival plot. Here is a sample: follow.up<-c(10,20,30,40,50,60,70,80,90,100) #months dead<-c(1,1,1,0,1,1,0,0,0,0) KM <-survfit(Surv(follow.up, dead)) plot(KM) The result is a nice plot. However, our research group thinks it may be a better idea to place the ticks to the years on the time scale, i.e. 0, 12, 24, 36

...be present at least in some of the optimisation algorithms. Anyway, I couln't find it neither in the help, nor in the non-internal, displayable source of optim. Could anyone tell me where to find such a function? And if it really is what I need for `parscale'? Thank you! G?bor -- Gabor BORGULYA MD MSc Semmelweis University of Budapest, 2nd Dept of Paediatrics Hungarian Paediatric Cancer Registry phone: +36 - 1 - 4591500 / 2834

Dear All! Tomorrow morning I will have to demonstrate R to a professor here at the Semmelweis University. He uses Windows and Statistica. I will have 20 minutes and I would like to convince him that R is powerful, and it even could be used in teaching the students basic medical statistics. Could you give me some ideas what to show him in this 20 minutes? This night I will have about 1.5 hours

Hi folks: Does anyone know of a way to do (linear) hypothesis tests of parameters after fitting a maximum-likelihood model w/ optim? I can't seem to find anything like a Wald test whose documentation says it applies to optim output. Also, thanks again to everyone who gave me feedback on the robustness of ML estimation in R! Peter ********************************

Hi there R-Helpers, Does anyone know if it is possible to sort a dataframe? I.e. Sort alphabetically column 1 ( which has some reocurring elements) then sort alphabetically column2 but keeping the order of column 1 constant; much the same way that the sort function works in Excel. Regards, Wayne Dr Wayne R. Jones Statistician / Research Analyst KSS Group plc St James's Buildings 79

Dear List, Could you tell why I get the error message? > library(multcomp) > data("cholesterol") > m = aov(response ~ trt, data = cholesterol) > cht <- glht(m, linfct = mcp(trt = "Tukey")) Error: could not find function "glht" Thank you G?bor