search for: bmj

Displaying 15 results from an estimated 15 matches for "bmj".

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2008 Feb 13
1
Samba and the InterWeb
...socket options = IPTOS_THROUGHPUT SO_SNDBUF=8576 inherit permissions = yes [test-xml] path = /stuff/test-xml writeable = Yes public = no Could anyone suggest what might be going on here? Thanks, Alex. -- Alex Hooper | <w> www.bmjpg.com Systems and Database Administration | <e> ahooper@bmjgroup.com BMJ Knowledge, BMJ Publishing Group | <t> +44 20 7383 6049 BMA House, LONDON, WC1H 9JR | _______________________________________________________________________ The BMJ Group is one of the world's...
2004 Aug 31
4
rsync crashing Redhat RHEL3.0 server
...ough time intervalls so that the each crontab rsync process finishes before the next one starts. Occasionally, however (about once a week) rsync crashes dedicated server B during any one of these 10 crontab processes. I would be very grateful for your help. regards, Daniel. Daniel Berhane bmj.com web administrator The BMJ Publishing Group Limited BMA House, Tavistock Square, London WC1H 9JR http://bmj.com Tel: +44 (0)20 7383 6362 Fax: +44 (0)20 7383 6997
2010 Mar 23
2
Sample size for proportion, not binomial
Hello, I am looking for a sample size function for samples sizes, to test proportions that are not binomial proportions. The proportions represent a ratio of (final measure) / (baseline measure) on the same experimental unit. Searches using RSeek and such bring multiple hits for binomial proportions, but that doesn't seem to fit my situation. Perhaps there's some standard terminology
2006 Jul 24
1
Plotting league tables/ caterpillar plots
...be to tell boxplot not to plot boxes (sounds silly isn't it?). I've tried the option "boxwex=0" but the result is unsatisfactory. An example for a league table can be found in Marshall, Spiegelhalter [1998], Reliability of league tables of in vitro fertilisation clinics, BMJ1998;316:1701-1705, you may find it at http://bmj.bmjjournals.com Thanks in advance Eik Vettorazzi
1999 Nov 12
1
Wanted: online Introduction to R
As a complete newcomer I am attempting to learn to use R, but am finding it extremely difficult because I have not yet found an "Introduction to R". For over a week now I have monitored the R-help list, studied the R-FAQ and related documents, downloaded and run the Windows R and looked at the Help, downloaded early and late samples of the R-help archives, and searched for illuminating
2010 Feb 21
1
odfWeave - merged table cells, and adding information like totals and p-values
...mply print those and then add them to my table by hand. But I'm trying to be smart and use odfWeave. Now I know I can put them in my caption but I'd probably have added them as an extra row in my table or added it in brackets similar to the SDs/ORs and CIs shown in this example http://www.bmj.com/cgi/content-nw/full/340/feb05_1/c199/TBL2 depending which was more appropriate. - Is there an easy way to do anything like this? I'm thinking that we often put crude numbers in and (%) in brackets, or CIs etc - so my exported table would not ideally be pure numbers. - As a p value usual...
2008 Mar 02
1
Problem plotting curve on survival curve (something silly?)
...art Wizzard! I eventually want to use it to analyse some chemotherapy response / survival data. That data will not be mature and so my interest is in using it to deliver predictions of what mature data may produce by using Weibull Regression However for now I've borrowed a dataset from the BMJ (CSV tabs seperated version here: http://www.wittongilbert.free-online.co.uk/HepatitisData.csv ) and am trying to plot some curves. I've succeeded in plotting a Kaplan-Meier Survival Curve by using the following: > my_var.bygroup <- survfit(Surv (Survival, Censored==0) ~ Treatment...
2004 Sep 16
1
how to rsync over ssh, but login is not permit
Hi, I want to backup my system via rsync over ssh, but login is *not* permited! According to the sshd_config man page, I need to set PermitRootLogin to forced-commands-only. In order to run follow command, how to set command option in authorized_keys? # rsync -avz server:/etc /backup Best Regards! Jacky Kim . >On Thu, Sep 09, 2004 at 06:03:49PM +0800, Jacky Kim wrote: >> If
2011 Feb 21
1
R Square Help (this debate again, i know!)
Hello everyone, I have been using R to do some behavioural economic analysis for my masters thesis, specifically fitting demand curves using nls. E.g. Formula: y ~ c + b * x - a * exp(x) Parameters: Estimate Std. Error t value Pr(>|t|) c -0.445097 0.080823 -5.507 0.005304 ** b -0.777105 0.059528 -13.054 0.000199 *** a 0.011908 0.003886 3.064 0.037495 * --- Signif.
2011 Feb 21
0
OT: R Square Help (this debate again, i know!) and The Experimental Unit
...ven impolite disagreement is acceptable -- as are private, offlist fusillades. I will not try to defend myself on list, though I will publicly acknowledge any error. Cheers, Bert > Surprisingly, it's mostly the not-so-top papers that cause problems here. > When Lancet, New English or BMJ reject some statistical argument, they have > good reasons. Oh? Data to support this assertion, please. > > Dieter > -- Bert Gunter Genentech Nonclinical Biostatistics (But these are my own views, of course, not that of my organization).
2011 Mar 23
2
Estimating correlation in multiple measures data
Dear R-helpers, This may sound simple to you, but I'm a beginner in this, so please be forgiving. I have a following problem: two analytes were measured in patient's blood on 4 occasions: ProteinA and ProteinB. How to correctly evaluate correlation between ProteinA and ProteinB? I tried: x <- data.frame(Patient.ID=rep(1:10, each=4), Visit=rep(c(1:4),10), ProteinA=rnorm(m=10,
2009 Jul 14
4
Help needed in identifying type of plot
Hi folks, Can someone please help me in identifying the type of plot shown here? Sample R code or specific package name would be of help as well. Thanks, -Girish http://www.nabble.com/file/p24477714/example_plot.jpg -- View this message in context: http://www.nabble.com/Help-needed-in-identifying-type-of-plot-tp24477714p24477714.html Sent from the R help mailing list archive at Nabble.com.
2010 Mar 24
0
R-help ordinal regression
...g open to > better options of analyzing "change from baseline" data, I > would recommend that you both read the following two > papers: > > > Statistics notes: analysing controlled trials with baseline > and follow up measurements. > Vickers AJ, Altman DG. > BMJ 2001;323:1123?4. > http://www.bmj.com/cgi/content/full/323/7321/1123 > http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1121605/pdf/1123.pdf > > > The use of percentage change from baseline as an outcome in > a controlled trial is statistically inefficient: a > simulation study....
2009 Jun 29
5
Help
HiĀ group, I found a module for adaptive kernel density estimation for Stata users, but unfortunetly I don't have access to Stata, can I find a similar approach using R? Thank u so much 4 ur time. [[alternative HTML version deleted]]
2003 Apr 08
0
rsync files and directories with german umlauts ?
Hello, i need to sync mounted Windows NT Filesystems with rsync. I mount the filesystems with "mount -t smbfs -o ...". All works fine, but no File or Directory with non iso-latin1 character (in example german umlauts like ?,?,?) will be sync ... Because it's urgent and important for me, i need help for this problem ... Thank's a lot Jens Bruns