search for: trialist

Displaying 20 results from an estimated 64 matches for "trialist".

2009 Nov 01
3
Collapse factor levels
...0 0 4 0 0 0 So, there are clearly still 10 underlying levels. The results I would like to see from printing the value and summary(x) are: > x [1] A A A B B B C C C C Levels: A B C > summary(x) A B C 3 3 4 Hopefully this makes sense. Thanks, Kevin -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Dalla Lana School of Public Health University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016
2008 Jan 23
5
latex{Hmisc} cannot find xdvi on MAC OS X
...line 1: xdvi: command not found" appears. I started a terminal and a "which xdvi" returned the path where it found xdvi. So, it appears that xdvi is in the PATH. My apologies, I forgot to get her sessionInfo() but I think she is running R 2.6.? -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Department of Public Health Sciences Faculty of Medicine, University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.864.5776 Fax: 416.864.6057
2005 Jul 15
1
Cannot update some packages after upgrade to 2.1.1
...pty. I also could not identify any relevant messages in the mailing list archives. Is R looking for that library because it was present on the machine the RPM was built on? Would building R myself solve the missing library problem or did I do something wrong? -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Department of Public Health Sciences Faculty of Medicine, University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.946.8081 Fax: 416.971.2462
2006 Mar 16
1
Problem compiling R-Patched
...t above, I am not trying to build in /usr/local/... at all so I am puzzled as to why anything is being done in /usr/local/ before the "make install". Can anyone suggest what I should try? I am compiling on SuSE Linux version 9.2. Thank you. Kevin -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Department of Public Health Sciences Faculty of Medicine, University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.946.8081 Fax: 416.946.3297
2006 Apr 07
2
Why is transform="km" the default for cox.zph?
...de your own. It also appears to me that different forms look at different departures from proportionality. So, my question is what are the advantages and disadvantages of the default transform="km" compared to say, identity or log? Thank you. Kevin -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Department of Public Health Sciences Faculty of Medicine, University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.946.8081 Fax: 416.946.3297
2009 Dec 01
1
An R vs. SAS Discrepancy: How do I determine which is correct?
...ase packages: [1] splines stats graphics grDevices utils datasets methods [8] base other attached packages: [1] Design_2.2-0 survival_2.35-4 Hmisc_3.6-0 lattice_0.17-25 loaded via a namespace (and not attached): [1] cluster_1.12.0 grid_2.8.0 -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Dalla Lana School of Public Health University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016
2009 Feb 02
3
Problem with foreign package
...=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US;LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] tools_2.8.0 and my version of foreign is 0.8-30 -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Dalla Lana School of Public Health University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.864.5776 Fax: 416.864.6057
2012 Jan 17
2
net classification improvement?
Greetings, I have generated several ROC curves and would like to compare the AUCs. The data are cross sectional and the outcomes are binary. I am testing which of several models provide the best discrimination. Would it be most appropriate to report AUC with 95% CI's? I have been looking in to the "net reclassification improvement" (see below for reference) but thus far I can only
2010 Sep 21
1
reshape is re-ordering my variables
...LC_NAME=C LC_ADDRESS=C [10] LC_TELEPHONE=C LC_MEASUREMENT=en_US LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] tools_2.11.1 -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Dalla Lana School of Public Health University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016
2006 Jun 15
1
xyplot problem
Dear all, I have created the following data (that you can run) in order to explain my problem: y <- rep(c(1,2), 8) id <- rep(1:8,each=2) x1 <- rep(c("-a","+a"), each = 8) x2 <- rep(c("-b","+b"), each = 2, times = 4) x3 <- rep(c("-c", "+c"), each = 4,2) df <- data.frame(cbind(id,y,x1,x2,x3)) If I do:
2007 Apr 13
0
Problem saving xYplot graph to file
...y partially created. The axes are drawn but the actual plot area is empty except for the "curve" labels, although these are plotted on to of each other in the wrong place. I also tried putting my xYplot() inside a print() which gave the same results. -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Department of Public Health Sciences Faculty of Medicine, University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.864.5776 Fax: 416.864.6057
2007 Jun 06
1
how to update R version
Hello, I am new in using Linux R. Would someone tell me what the best way to update my current R 2.3.0 to R 2.5.0? I want to keep my current library packages. Do I have to erase the older version and install the newer version? In that case, I need to re-download all the packages I need. Any short way to do the update? Thanks for your help! yanqin
2007 Oct 30
1
Sweave line length
Hello, I am trying to add R code to my dissertation and the length of a line of text that Sweave generates is longer than the right margin in my dissertation. I have found no way to tell Sweave how to set the line length. I am using an iMac with tiger ver. 10.4.10, and R: ver. 2.5.1. Here is the R code that is longer than my right margin: input to Sweave:
2007 Oct 30
2
R installation on SuSE 10.3
I have downloaded the source code for Linux. the ./configure procedure can find gcc but cannot find f77 or f2c I have looked for the above compiler with Test and installed all what pertains to Fortran. Still not even the man pages for f77 anf fc2 work >. Where is f77 and f2c with linux 10.3 ?? Thank you do much -- Maura E.M [[alternative HTML version deleted]]
2010 Aug 05
1
Help installation lme4a,
Dear R users, I recently downloaded the library lme4a by svn checkout svn://svn.r-forge.r-project.org/svnroot/lme4. I tried to install the library lme4a by copying the downloaded document in the location where all the R libraries are saved. When I try to load the library, I obtain the message library(lme4a) Error in library(lme4a) : 'lme4a' is not a valid installed package R
2010 Aug 09
3
ESS question. How to get rid of ess-smart-underscore?
Hi, ESS replaces "_" by "<-". How can I switch off this feature? I need to be able to type the underscore Thanks Eryk -- Witold Eryk Wolski Heidmark str 5 D-28329 Bremen tel.: 04215261837
2005 Oct 13
1
Problem whit a piece of program
Hi friends, I'm beginning in R and I have simple question. I have this piece of my program and how you see, that's ok (whit > num<- 0.002) num<-0.002 # ok, but not when I change whit num<-0... ? factor1<-1; while(1) { if (num*factor1<1) factor1<-factor1*10 else { print("out ok!!"); break; } } [1] "out ok!!" but when I change (whit >
2006 Jan 19
2
R Commenting Style
I seem to remember reading somewhere about some style guide regarding R the number of comment characters (#) prior to the comment meaning something. Anyone know to what I'm referring? Where? ---------------------------------------------------------- SIGSIG -- signature too long (core dumped)
2006 Mar 11
1
ESS, transcripts, and such
> From: Duncan Murdoch <murdoch at stats.uwo.ca> > To: ramasamy at cancer.org.uk > Date: Fri, 10 Mar 2006 08:33:09 -0500 > Subject: Re: [R] To improve my understanding of workspaces > Other than Emacs, I use the same work habits as Adai. An advantage of > this workflow is that almost everything is stored in text format, so it > is easy to compare different versions to
2006 Mar 16
0
Having trouble with plot.survfit and fun="cloglog"
...ion _ platform i686-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status Patched major 2 minor 2.1 year 2006 month 03 day 13 svn rev 37540 language R The survival package is version 2.21 Thank you, Kevin -- Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Department of Public Health Sciences Faculty of Medicine, University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.946.8081 Fax: 416.946.3297