search for: orthopaedic

Has anybody written an actuarial (life) survival procedure, this does not appear to be an option in the survival package? This approach is common in orthopaedic surgery to demonstrate the survival of prostheses. I need to apply the "modified" lower conf.int because of the censoring over time. I want a life table which I can then easily plot. Many thanks -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mail...

...m. Does anyone have any thoughts? for(i in 1:4861469) { lst <-unlist(strsplit(data$ComputerName[i], "\\.")) data$IPA[i] <-lst[[1]] data$IPB[i] <-lst[[2]] data$IPC[i] <-lst[[3]] data$IPD[i] <-lst[[4]] rm(lst) } Andrew Andrew Roberts Children's Orthopaedic Surgeon RJAH, Oswestry, UK [[alternative HTML version deleted]]

...ewhere in the line but a quick test of a HP jetdirect printer didn't mention off at all when turned off. Hope this helps someone somewhere cause I spent a couple of hours trying to solve this ------------------------------------- Paul Cochrane | Tayside Orthopaedic & | | Rehabilitation Technology Centre | ============= |-------------------------------------| | Ninewells Hospital & Med. School | | Dundee, Scotland, UK. | | DD1 9S...

...blue", cex=0.7, srt=i) text(px, py, labels=substitute(that%<-%phantom(1),list(that=i)), pos=3, col="blue",cex=0.7,srt=i) lines(px, py, type="p", col="black") #just for reference } Many thanks. Paul Dr. P. B. Pynsent, Research and Teaching Centre, Royal Orthopaedic Hospital, Birmingham, B31 2AP, U.K.

...l knee replacement. While a Grade III tear may or may not require surgery, a Grade I or II never does! we've studied it well over the years and have grown accustomed to knowing just how much to expect out of ourselves. David Trotter is Board Certified and a Diplomate of the American Academy of Orthopaedics Surgeons. having both knees done at the same time is also riskier than one at a time. it simply shows its head in more areas of our lives than we normally think to look. it's with us everyday, pulsing and flowing. Her lateral compartment was normal. This book will be extremely useful to anyon...

...l knee replacement. While a Grade III tear may or may not require surgery, a Grade I or II never does! we've studied it well over the years and have grown accustomed to knowing just how much to expect out of ourselves. David Trotter is Board Certified and a Diplomate of the American Academy of Orthopaedics Surgeons. having both knees done at the same time is also riskier than one at a time. it simply shows its head in more areas of our lives than we normally think to look. it's with us everyday, pulsing and flowing. Her lateral compartment was normal. This book will be extremely useful to anyon...

Hi, Please, is out there anybody using RMySQL under Mac OS X? I'm trying to build it without much success. How must I add/locate mysql.h and lmysqlclient library? Thanks for your help, Ricardo -- Ricardo Rodr?guez Your EPEC ICT Team

...approximately what the limit is before slowdown occurs. I'd guess it's maybe dependent on the speed of the CPU, memory and disk subsystem but was wondering if anyone has any hard facts. ------------------------------------- Paul Cochrane | Tayside Orthopaedic & | | Rehabilitation Technology Centre | ============= |-------------------------------------| | Ninewells Hospital & Med. School | | Dundee, Scotland, UK. | | DD1 9S...

...in the attachment for further info. This script has been running for the last 3 months or so on my printserver without any problems and I thought I'd pass it on for anyone to test and/or use. ------------------------------------- Paul Cochrane | Tayside Orthopaedic & | | Rehabilitation Technology Centre | ============= |-------------------------------------| | Ninewells Hospital & Med. School | | Dundee, Scotland, UK. | | DD1 9S...

...n, k=2, scale="odds") spl the code "plot(spl)" produces a red spline which is difficult for me to interpret. I would like to plot survival based on for example age or rx. Thanks in advance for your help in this matter Best Regards Maziar Mohaddes MD, PhD student Department of Orthopaedics Sahlgrenska University Hospital SE-431 80 Mölndal, Sweden [[alternative HTML version deleted]]

...t was generated using Mathematicas ContourPlot3D function. I would love to be able to plot this in R. However, I could not find something which could this. Thanks a million for the help! Uwe -- Uwe Wolfram Dipl.-Ing. (Ph.D Student) __________________________________________________ Institute of Orthopaedic Research and Biomechanics Director and Chair: Prof. Dr. Anita Ignatius Center of Musculoskeletal Research Ulm University Hospital Ulm Helmholtzstr. 14 89081 Ulm, Germany Phone: +49 731 500-55301 Fax: +49 731 500-55302 http://www.biomechanics.de

Hi fans, i tryed to use samba to share a paradox database which comes with a special trade programs. On a novell server it works fine. But on the samba share I get a corrupted database after some minutes of multi user access. I've tryed some entries in the smb.conf and I think a have a very conservative setting now. I heared of somebody who uses samba successfully with the same application

Hi folks, I recently upgraded two client/server pairs to WinXP and Samba 2.2.6 (on Linux). Browsing mounted shares causes hangs when right-clicking or double-clicking/ launching files -- about 15 seconds. During this, precious little network activity is occuring. Something is hanging, locking, sleeping. Appreciate any advice. Hope it's a simple fix. If not, I'd appreciate advice on

...smbd/dir.c:dptr_close(277) Invalid key 281 given to dptr_close [2002/05/10 11:09:24, 0] smbd/dir.c:dptr_close(277) Invalid key 271 given to dptr_close followed by lots of similar lines...... ------------------------------------- Paul Cochrane | Tayside Orthopaedic & | | Rehabilitation Technology Centre | ============= |-------------------------------------| | Ninewells Hospital & Med. School | | Dundee, Scotland, UK. | | DD1 9S...

Hi I would like to analyse an ordinal categorical variable. I know how I can analyse a nominal categorical variable (with multinom or if there are only two levels with glm). Does somebody know which command I need in R to analyse an ordinal categorical variable? I want to describe the variable y with the variables x1,x2,x3 and x4. So my model looks like: y ~ x1+x2+x3+x4. y: ordinal factor

Hi, If I have: foo <- survfit(y ~ x) where y is a survival object and x is a n-level factor. The documentation says when I plot(foo), the confidence intervals will not be plotted (which I guess is understandable as otherwise the plot will get really messy). I tried to plot with confidence intervals by using: plot(foo, conf.int = TRUE) and indeed the resulting plot is messy. However

Dear All, I've been using R for windows for a while, without too many problems. However, I'm forced to use the MAC OS system for teaching, because our teaching labs are mac only (not my idea!!). I have a very basic problem, but one that doesn't appear on the FAQs. I simply want to import data from a spreadsheet. I'm using exactly what works fine on Windows, namely: 1 save

...60 (secr) > Oxford OX1 3TG, UK Fax: +44 1865 272595 > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > > Dr. P. B. Pynsent, Research and Teaching Centre, Royal Orthopaedic Hospital, Birmingham, B31 2AP, U.K. ------------------------------ Message: 26 Date: Thu, 26 Jun 2003 16:58:33 +0100 (BST) From: Prof Brian Ripley <ripley at stats.ox.ac.uk> Subject: Re: [R] Plots using POSIX To: Duncan Murdoch <dmurdoch at pair.com> Cc: Shawn Way <sway at tanox.c...