similar to: R Applied to Biology Problem

I am not sure if my message made it through, so here it is again! Hi Rer's, R-1.1.0 I have two questions for you: 1) I am trying to complete a multiple comparison test after completing a one-way ANOVA on some data. I think this is pretty reasonable. aov(MetricSubset ~ GeneNameFactor) works pairwise.t.test(MetricSubset,GeneNameSubset,p.adjuxt.method=bonferroni,p ool.sd=FALSE)

Forwarded Message: > To: Steve Arthur <sarthur at crick.protogene.com> > From: Thomas Lumley <thomas at biostat.washington.edu> > Subject: Re: [R] couldn't find function "..." > Date: Wed, 5 Jul 2000 16:16:25 -0700 (PDT) > ----- > On Wed, 5 Jul 2000, Steve Arthur wrote: > > > Hi, > > > > R 1.0.1, on Linux(mandrake/RedHat).

Hi, I have a fairly simple question. I would like to use the survival package to perform an analysis on data where an event can have occurred before individuals were recruited into a study. I'm not sure how to do this using the Surv() function. I would have a date of an event and then the enrolment date would be after that. How do I put these two dates into the survival function? Thank

Hello, how convert x in xarray (numbers)? > x [1] "0 - 13" > y [1] "11 - 23" > z [1] "220 - 9" > xarray [1] 0 13 > yarray [1] 11 23 > zarray [1] 220 9 Thanks, RMB

Hello r-help, I notice that r includes distribution, and quantile values for the Chi-Square, F, t, and normal functions. Could someone give me some good reference(s) for how these probabilities and quantiles are calculated. I have already calculated the normal probability values using a Taylor expansion (http://www.sisweb.com/math/tables.htm). I realize these calculations must be very

Hi Rers, W/o trying to make a long story short (I hope you read that correctly), I have been working on a nice little R function ... Somewhere along the line I got an error that refers to a max function in my function (I think this is a vector vs. scalar issue): Error in max(..., na.rm = na.rm) : invalid "mode" of argument If that's not bad enough, even when I q() R and say

Hi, R 1.0.1, on Linux(mandrake/RedHat). I am trying to write my first function using R and I need help figuring out the error I have indicated in the Subject line above. The purpose of the function is not to "wow" anyone, but just to serve as a stepping stone so that I might write more complicated functions in the future. First I created my function named "CIfunc" and saved

Hi, My wife who has thousands of IMAP boxes keeps getting errors when moving mailboxes in Thunderbird in Windows. I am using the same server (dovecot test 77) with Thunderbird in Linux and don't see the problem. What happens is she moves the mail box and Thunderbird comes up with an error saying it can't access the old box (odd!?). It has however completed the move. The following

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

try: library(foreign) read.ssd("J:\\QM\\Reports\\Sarthur\\SAS_Application\\SAS_Data_Sets","use") instead, hth, Merry Christmas, Bernhard -----Original Message----- From: Stephen Arthur [mailto:sarthur67 at yahoo.com] Sent: 20 December 2002 16:55 To: ripley at stats.ox.ac.uk; rossini at blindglobe.net Cc: r-help at stat.math.ethz.ch; stvjc at channing.harvard.edu Subject:

As the title suggests, when building R packages on Windows, what is the difference between: R CMD build --binary mypack And R CMD INSTALL --build mypack ?? The former is suggested by my previous notes and seems to work, and the latter is suggested by http://www.biostat.jhsph.edu/~kbroman/Rintro/Rwinpack.html, and also seems to work. Thanks in advance Mick

Hi all, I realise that the convention is to provide a working example of my problem but the data are of a sensitive nature so I'm not able to do that in this case. I need to query a database for multiple search terms: db <- structure(list(ind = c("ind1", "ind2", "ind3", "ind4"), test1 = c(1, 2, 1.3, 3), test2 = c(56L, 27L, 58L, 2L), test3 =

Hi, I'm hoping that someone will be able to help. I would like to compare how covariates associate with the risk of a binary outcome during two periods. Period 1 will be non-exposure to a treatment and period 2 will be exposure to a treatment. The same individuals will be examined in each group but I want to be able to compare the association of certain covariates between the two groups to

Using R 2.0.1 on Windows XP, I am getting an error msg: Error in .Fortran("conic", nxy = nxy, npt = npt, CP = cp, EP1 = ep1, EP2 = ep2, : Fortran function name not in load table I am wondering if there is a way to see what function names are in the load table? Maybe the function name has been altered? The first thing I do in my analysis script is to load a DLL, conic.dll,

Hi folks, Debian 504 64-bit I found following document; http://www.biostat.wisc.edu/~kbroman/Rintro/ Whether it is the right document for installing Emacs+ESS and R so that R can run on Emacs? TIA B.R. Stephen L

Hi R users, I really need help with subsetting data frames: I have a large database of medical records and I want to be able to match patterns from a list of search terms . I've used this simplified data frame in a previous example: db <- structure(list(ind = c("ind1", "ind2", "ind3", "ind4"), test1 = c(1, 2, 1.3, 3), test2 = c(56L, 27L, 58L,

Hi Everyone, I would like to do sequential subtractions within a group so that I know the time between separate observations for a group of individuals. My data: data <- structure(list(group = c("IND1", "IND1", "IND2", "IND2", "IND2", "IND3", "IND4", "IND5", "IND6", "IND6"), date_obs =

Hi, I would like to use a Fortran subroutine in R. I have checked the R docs and Newsletter, but..., I am unable to load an object file into R. The steps I have taken are (on Debian Linux/recent Intel-type chip ): 1. g77 -c hello.f to create hello.o 2. mymachine> R to start R 3. > dyn.load("hello.o") at which point I am getting the error msg: Error in

Hi, I got this working. i had to get rid of an underscore in one of my variable names to work on RWeb. Thanks for your help though!! Natalie __________________ I think you have to be either honest or careful, since the code you submitted to Rweb is different with your former code! Why the condition was changed from "test<-subset(X, GRADE == 7 & Y_Q10A < 9)" to

Hi all, Does anybody know whether one can nest IF statement in multiple FOR loops ? According to results of my code, only the first iteration of each loop is performed... Thanks, Regards, Natalie [[alternative HTML version deleted]]