similar to: Rtips (was Re: ? building a database with a the great /cookbook

Dear R help reader, I'm not an expert in R and are lerning a lot by reading the help digest, which is sometimes difficult because the huge amount of data posted. I have posted some questions before, and are impressed how quick I got a solution for my problem. Sometimes with quite different suggestions. I was always wondering if my questions didn't come up before. On the other site,

Dear R help-list reader, I would like to generate a plot which compares to states in a patient treatment, before and after. for this reason I have generated a vector before<-c(1,30,23,40) and after<-c(20,10,20,60) the first element in "before" corresponds to the first element in "after". I would like and generate a dotplot with before and after as x-scale, the elements

Tony Plate <tplate <at> acm.org> writes: > > Since the virtue and reliability of Wikis was brought up, I created a R > Wiki page for this at > http://www.sciviews.org/_rgui/wiki/doku.php?id=beginners:surprises:emptysetfuncs > > > Anyone: please correct errors and improve it! > > Tony Plate > OK, now I have another question: I see a wiki at

Tony Plate <tplate <at> acm.org> writes: > > Since the virtue and reliability of Wikis was brought up, I created a R > Wiki page for this at > http://www.sciviews.org/_rgui/wiki/doku.php?id=beginners:surprises:emptysetfuncs > > > Anyone: please correct errors and improve it! > > Tony Plate > OK, now I have another question: I see a wiki at

Dear R users, according the help(log), the function log2(x) should give the natural logarithm of x. I expect in case of x=2 to to get 0.6931, however, R gives me 1 as a result. Similar, logb(2,2) gives 1 again. I'm wondering if I have missed something ? Yours Frank -- Frank Mattes, MD e-mail: f.mattes at ucl.ac.uk Department of Virology fax 0044(0)207 8302854 Royal Free Hospital

Dear R-help reader, it would be great if someone knows what I'm doing wrong. I have (shorten) dataframe, which consists of a group identification and a number >ex UID REL 1 R1.B8.31 0.000 2 R1.B8.31 0.000 3 R1.B8.31 0.000 4 R1.B8.31 0.000 5 R1.B8.38 0.010 6 R1.B8.38 0.060 7 R1.B8.38 0.006 8 R1.B8.38 0.010 9 R1.B8.48 0.080 10 R1.B8.48 NA 11 R1.B8.48 0.006 I'm

Dear R users, I would appreciate for some advise how to generate a Tukey Mean-Difference Plot with the tmd function part of the lattice library. I have two test results (log transformed) which showing a correlation on a scatterplot. However the correlation line is parallel displaced depending on a clinical condition. I thought to a Tukey Mean Difference Plot would show me the difference

Dear R help-list reader, I'm trying to investigate my data with linear mixed model and are seeking advise how to write the model in R. I was trying to get hold of the recommended book from Bates et al, but neither the major bookshop nor our university library had the book. My data is mirroring the example given in the appendix of John Foxes book "Applied Regression" with a

Frank uses the term "hierarchical keyword organization" which I agree is a good way to organize a system designed to help users. In fact, this is one reason why I like the R graphics gallery which allows one to quickly find a particular type of plot based on keyword, examine the plot to see if it's close to what's desired, and then get the detailed code to examine or modify for

<ivo_welch-rstat8783@mailblocks.com> writes: > PS: I am still looking for an R wizard who would be interested in > coauthoring an "R cookbook" ala the "perl cookbook" with me... I think I've said it before, but I think such a book ought to coauthor Paul Johnson, whether or not he does any work beyond the Rtips web pages. A few of the tips may need a bit of

From: Duncan Murdoch <dmurdoch@pair.com> >I do understand the feeling of >writing a nice little function, and not knowing exactly what to do >with it: CRAN is crowded, and it does seem that an entire package >just to support one or two simple functions is a bit of overkill. >Can we work out a way to publish such things? Here's a >proposal, with some serious flaws

Hi Ivo: You might check out Paul Jobnson's following page: http://www.ukans.edu/~pauljohn/R/Rtips.html   HTH, Arin On Thu, 08 Jul 2004 ivo_welch-rstat8783@mailblocks.com wrote : > >...I used to use perl for much work, and although there is much to like about it, R seems to be even better for most tasks---except that there is one perl resource that R cannot beat: the Perl Cookbook.

Dear R list subscriber, I'm hoppiing my question didn't come up so far. I try to do somthing simple a<-c(1,4,5,2,7,34,56,78,76,54) b=c(a<-c(1,4,5,2,7,34,56,78,76,54) c<-c(0,0,0,0,0,1,1,1,1,1) I would like to get a scatter diagram with different plot symbol for 0 and 1 in c I tried plot(a,b, pch=c(1,2)[c]) which didn't work. I appreciate if someone from the list could

Dear R user, I'm wondering if anyone was succesful in compiling R under hpux 10.20 I couldn't compile verion 1.2.1 or 1.3. I asked this question two weeks ago, but nobody replyed. Looks that not many people are using hpux machines. Thanks Frank Mattes Department of Virology Royal Free Hospital London -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help

Hi, I'm wondering if someone has compiled R-1.0.0 for hp-ux 10.20. Unfortunally I could't compile the source because hp-ux doen't come with the full set of include/libaries for X. Regards Frank Mattes Royal Free Hospital, London Department of Virology mattes at rfhsm.ac.uk -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hello all, This is to announce the creation of R-sig-wiki, a new R SIG (Special Interest Group) mailing list dedicated to the elaboration and maintenance of a R Wiki. You can subscribe at: https://stat.ethz.ch/mailman/listinfo/r-sig-wiki. There is currently a prototype for a new R Wiki at http://www.sciviews.org/_rgui/wiki (temporary address). The main idea is to offer a site where users

Dear R user, I'm relative new and need some help / advise from you. I have organised my data in several frames, mainly because the data came from different sources. One common variable in all data frames is the day post transplantation. I would like to combine the data frame to one big data frame which contains all the data, however no duplicate rows should occour (only one row for one

Dear help news reader, I'm trying to draw a Kaplan-Meier curve and would like to ask the news group for some help Supposing I have study comapring two drugs, "A", and "B" and I recorde the time to get to the clinical endpoint (Time), in my case becommming virus free. I have setup the following frame: Time c Drug 1 5 1 A 2 7 1 B 3 2 1 A 4 10 1

Dear R user/ developer, I'm wondering if anyone has already compiled R 1.6.1 for hp-ux. I tried in the past (with version 1.3) and haven't had mutch success. I'm very interested to hear any comments. Many thanks Frank Frank Mattes, MD Dpartment of Virology Royal Free and University Medical School London

It seems to be the time of the year for top 10 lists both looking backwards (e.g. films: http://www.msnbc.msn.com/id/3660638/ ) and forwards (e.g. trends: http://www.wfs.org/forecasts.htm ) In this light I think we need a list of the top 10 features that users think R needs. Some of these are concrete while others are vague. By R, I am referring to the entire R system including packages, not