similar to: selection of missing data

Displaying 20 results from an estimated 120 matches similar to: "selection of missing data"

2009 Dec 17
1
Help with Merge - unexpected loss of factor level
Hi, Thanks in advance for any advice you can give me, I am very stumped on this problem... I use R every day and consider myself a confident user, but this seems to be an elementary problem.. Outline of problem: I am analysing the results of a study on protein expression in cancer tissues. I have raw intensities from 2 different types of cancer and normal tissue, which can be taken from several
2008 Feb 27
2
problem with creation of eSet
Hi, I am having troubles with creating an eSet and would appreciate any help on the following problem. I am trying to create an eSet using the following code pd <- read.table(file="pdata.txt",header =TRUE,row.names=1); colnames(pd) <- c("type","tumor","time","id"); pdN <- list(type =
2012 Mar 21
3
"cannot change working directory"
Hi, I need to write program to run some results from an experiment. i have the results saved in 2 different files, named "tuesday" and "wednesday" (both located within the same file). when i wrote the program for "tuesday" i had no problem running it, but when i changed the work directory to wednesday i got the "cannot change working directory" message. I
2007 Oct 15
24
Design flaw? - num_processors, accept/close
Rails instances themselves are almost always single-threaded, whereas Mongrel, and it''s acceptor, are multithreaded. In a situation with long-running Rails pages this presents a problem for mod_proxy_balancer. If num_processors is greater than 1 ( default: 950 ), then Mongrel will gladly accept incoming requests and queue them if its rails instance is currently busy. So even
2010 May 06
1
Understanding of survfit.formula output
Dear list, I am not familiar with survival analysis and I would need your help to understand a result I have obtained. I have used the following command line to look at number of events and probability of survival at the first 5 years: > su = summary(survfit(Surv(a[, Date], a[, Event]) ~ strata(a[,Prediction]), data = a), times=c(0,1,2,3,4,5)) I have studied two kind of events (disease-free
2007 Oct 16
2
Load testing methodologies/tools
I tried a bunch of tools and ended up using Jakarta J-Meter b/c it works cross-platform (Unix/Windows in my situation) and has a gui which shallows the learning curve. I''ve been quite satisfied with it.. Search the archives on this list and you should be able to find some great info Zed and others wrote a while back on How to Load Test Correctly. I found that series of posts to be
2007 Oct 09
3
Monit reporting that pid changed
Hi, I was wondering if this is normal or if it something i need to wonder about. I get Monit alerts that my mongrels PID files have changed. Changed Service MONGREL_2 Date: Tue, 09 Oct 2007 14:19:38 +0000 Action: alert Host: sa.greenling.com Description: ''MONGREL_2'' process PID changed to 18368 Your faithful employee, monit
2006 Jul 25
1
Battle of Namings: stylesheet_link_tag vs link_to_javascript
Link helper namings counterintuitive in an environment where convention over configuration prevails: <%= link_to_javascript ''myscript'' %> <%= stylesheet_link_tag ''mystyle'' %> A simple def in ActionView::Helpers::AssetTagHelper would fix things in a nice, backward-compatible way, such that: <%= link_to_javascript
2006 Mar 18
2
How to divide too long labels?
Is there any possibility to divide too long text in a plot to two or more lines, when using labels-parameter in the text()-command? Here is an example picture: http://users.utu.fi/attenka/253.jpeg My example script is something like this: text(1,0.7,labels=Chordnames[fnid(pcs%%12)]) # according to Larry Solomon's table http://solomonsmusic.net/pcsets.htm Chordnames is a long vector with
2006 Aug 08
1
Suggestion: environment.rb Includes
I like the idea of "instant functionality" Engines can offer, but practical implementation issues make adding and removing more tedious than it should be. The process typically requires: - manual modifications to environment.rb ( e.g., adding engine configuration and "Engine.start :myengine" - manual modification to app/controllers/application_controller.rb This should be
2007 Oct 17
9
proxy errors with apache2.2.3 + mongrels
I''ve posted this to rails-deployment as well. I have to administer a medium size rails app (1''5 million requests each day), recently I''ve switched from lighttpd + fcgi to apache + mongrel. In the following lines I am going to describe the platform: All machines are running Debian Etch, with 4 gb ram and dual core intel32 processors. Web server runs debian''s
2006 Jun 18
5
User/Password Management: Mapping items to inidividual users
Is there a good plugin that does per page authentication management? For example, I want to allow users to create pages and share them with specific users, all users, or none at all on a per page basis. Benjamin -- Posted via http://www.ruby-forum.com/.
2007 Oct 24
28
random cpu spikes, EBADF errors
In May I had problem with mongrels suddenly consuming huge cpu resources for a minute or two and then returning to normal (load average spikes up to 3.8and then back down to a regular 0.2 over the course of 5 minutes, then again 1/2 hour later. or 4 hours later, no predictable rhythm). I posted to Litespeed forums because I thought the problem was there but didn''t get far. And a week
2006 Jun 01
5
Content Management System
I am looking for a good CMS based on Rails that has at least these attributes: 1. Ease of use ( as it will be used by people who are not html literate) 2. Very easy/flexible to change layout. So far I have looked at http://rcms.oopen.de/Home/ (have not installed it yet) http://adminpages.flowdev.de http://demo.radiantcms.org/admin/pages http://www.eribium.org/eribium/ MuraveyWeb does not seem
2007 Oct 22
5
Automatic Scaling
Hi, I''ve got an app which will only be dealing with a few requests a minute for most of the time, then will shoot up to a continuous 20 req/s for an hour at a time. We''ll potentially be running a lot of instances of this app on the same server. Is there any way to have additional instances of Mongrel be started when the existing instance(s) stopping being able to handle
2007 Oct 18
0
Mongrel-users Digest, Vol 21, Issue 16
According to the mongrel_cluster.yml file you provided, you''re starting only 14 mongrels, but in your proxy balancer config you have 30 mongrels listed on ports 21000 - 21029. In this scenario, if apache tries to proxy to any ports higher than 21014 then you''ll get a proxy error as a mongrel doesn''t exist on that port. Or am I missing something? -----Original
2006 Jan 02
0
cox model test heterogeinity
I'm a young physician and i work on the breast cancer. I made a cox model and i want to do a test of heterogeneity. Do you know how i can do this with R. I'm sorry for this question wich seems to be easy for you. I read the manual and the help and i don't find it. Thanks for your help Bertrand Billemont
2006 Jan 03
0
cox model
I'm a french medicine student and i work on oncology. I work about treatment oh breast cancer. I have 3 sub group of patient. I made some kaplan meyer survival curve, and i made a cox model. On the survival curve, on the last observations there is a crossmatch of the different survival curve at 150 month . I study the validity of my model by study of residual by study the proportional risk.
2012 Feb 18
2
transforming a data frame to matrix
Hello > orderulcount Group.1 Group.2 Group.3 x V5 7 C L 0.0 30 C / L 19 C L 0.2 27 C / L 31 C L 0.4 15 C / L 43 C L 0.6 7 C / L 54 C L 0.8 2 C / L 10 C S 0.0 27 C / S 22 C S 0.2 10 C / S 34 C S 0.4 6 C / S 46 C S 0.6 1 C / S 1 D
2012 May 14
3
Add column from other columns data.
Hi everyone, I am having some problems with making a new colomn wit data in it. I have this one column named: Fulfilled Fulfilled 1 1 0 1 1 1 1 0 0 1 And now I would like to add another colum to my .csv file ("Finished") In this "Finished" column I would like to have "Yes" or "No". Where in colomn "Fullfilled" is a 1, "Finished"