similar to: seeking tip to keep first of multiple observations per ID

Hello kind and R-knowledgeable souls! I am trying to use read.fortran to read in old datasets in 80-column-card format with no separators between variables (just 80 columns of solid digits). I comprehend the instructions for specifying the columns for each variable, but I can't understand how to assign the variable names after reading the help pages for read.fortran, read.fwf and

Hello from a neophyte! Is there a diagnostic programme which can be run to determine if there are any faults in Samba 2.2.3a? I cannot connect from Win XP to my rev/b iMac (suddenly, maybe 'upgrade' to 10.3.4 had some effect) and the smb crashlog (shown below) has a pile of stuff which is incomprehensible to me. Secondly, how does one upgrade to another version of Samba and is this

I've just started using R and am still a neophyte, but I found the following curious result. I'm using the current version of R (2.5.1 (2007-06-27) ). Why are the results for the third quartile different in the output from the summary and fivenum commands? For the following data set 457 514 530 530 538 560 687 745 745 778 786 790 792

The US water year extends from 01 October yyyy-1 through 30 September yyyy and is referenced by the year starting on the included 01 January yyyy. I'd like to be able to find the annual means for the water year. To do so I've taken the input date-time, which is in the usual format "1991-10-07 10:35:00" changed it by: w$d<-as.POSIXct(w$date.time) Now I can add an

Back in 2009 there was some discussion of the practicality of supporting char sizes greater than 8-bit: http://lists.cs.uiuc.edu/pipermail/cfe-dev/2009-September/thread.html#6349 http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-September/thread.html#26025 with the consensus seemingly being "quite doable, please get a good patch and submit". However the current code appears (to my

Hi, How can I, from a single "driver" file, source other files in such a way that I can access their functions with parameters defined in my "driver" file? I wish to do this to avoid creating a single, self-contained but clunky piece of code. I have searched and found functions such as file(), pipe(), open(), found manuals on creating my own packages, etc. but I become

I'm trying to write a small function (below) to compute Box & Cox transformations of x for arbitrary values of lambda. I'd like to specify a range of values for lamba (min,max,step) and am having trouble getting the for loop to work. Suggestions? Any pointers to resources for learning to write functions in R for neophyte programmers? Thanks. --Dale boxcox <-

Dear List: I am very much a unix neophyte, but recently had a Ubuntu box installed in my office. I commonly use Windows XP with 3 GB RAM on my machine and the Ubuntu machine is exactly the same as my windows box (e.g., processor and RAM) as far as I can tell. Now, I recently had to run a very large lmer analysis using my windows machine, but was unable to due to memory limitations, even after

Dear R users, I would like to simulate, for 20000 replications, an autoregressive process: y(t)=0.8*y(t-1)+e(t) where e(t) is i.i.d.(0,sigma*sigma), Thank you in advance ____________________________________________________ Écoutez gratuitement le nouveau single de Noir Désir et découvrez d'autres titres en affinité avec vos goûts musicaux

Hi, R users, What may be the best function in R to do variable selection in logistic regression? I have the same number of variables as the number of samples, and I want to select the best variablesfor prediction. Is there any function doing forward selection followed by backward elimination in stepwise logistic regression? Thanks, Annie [[alternative HTML version deleted]]

Hello, I want to perform an lme on a database with this structure: ID Sequence Temperature Tumour Error 1 5 0 1 8.721872e-08 1 5 0 2 8.695348e-08 1 5 0 3 2.019604e-13 1 5 37 1

Greetings Supreme Council of R Masters, Like toddler, I have gotten my head stuck in the banisters of R ... again. Let it be know I am still a neophyte in the R-community forum world, so please don't flame me too bad. I have two sets of data, each with a set of timestamps. I would like to somehow merge the datasets based on the timestamps and an individual identifier. That is there are

Hello: Using Redhat 7.3 and > version platform i686-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status major 1 minor 6.1 year 2002 month 11 day 01 language R I am trying to install the RODBC package.

Hi All, I have to say upfront that I am a complete neophyte when it comes to programming. Nevertheless I enjoy the challenge of using R because of its incredible statistical resources. My problem is this .........I am running a regression tree analysis using "rpart" and I need to run the calculation repeatedly (say n=50 times) to obtain a distribution of results from which I will pick

Hi, I am simply looking for the function that will allow you to look at the top 20 lines of a long dataset? LP On Mon, Nov 1, 2010 at 10:46 AM, Louis Plough <lplough@usc.edu> wrote: > Hi, > I am trying to generate all possible permutations (choose 2) of a vector, > b, for example--using 'combn' the combinations in only one direction are > generated... > > >

Does anyone know of a R package that will determine the convex hull of a high-dimensional dataset (say 4-10 dimensions). I know chull works for 2D data. I'm neophyte to R and convex hulls so please keep it simple. Many thanks Ben -- Ben Stapley. Biomolecular Sciences, UMIST, PO Box 88, Manchester M60 1QD. Tel 0161 200 5818 Fax 0161 236 0409

Hello, I wanted to figure this out myself, but sadly I can't. I started Tinc under XP/SP1, it worked great. I wanted to make a change in the config, so I went to the services control and stopped Tinc. Now when I go to start it I get this error: No Windows tap device found!. Yet, I see a tap device in 'Device Manager' and in 'My Network Places'. It works fine under

Hello, I have data in a frame: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 I would like them arranged in a single column: 1 2 3 4 . . 8 9 . . 16 etc. I believe this should be possible using reshape, but I can't see how to do it. Thanks for sparing time to help a neophyte, Roger Mason

[ Unfortunately, yet another person (or rather Micro$oft Outlook configuration?), sending mail to me, the list maintainer (owner-...), rather than the mailing list... MM ] From: "M. Shiham Adam" <msadam at soest.hawaii.edu> To: <owner-r-help at stat.math.ethz.ch> Subject: .R Directory in Win ver 1.3.0 Date: Tue, 3 Jul 2001 12:42:42 -1000 Dear R

Hello, I'm ashamed to admit that I'm an R and meta-analysis neophyte just when my colleagues and I are attempting to run R for that latter purpose. We would like to construct a graph of the 95% confidence intervals of odds ratios (inverse odds ratios, actually). We are using the metaplot() function in the "rmeta" package. While we can construct a basic plot, we cannot configure