similar to: Input on application design

Displaying 20 results from an estimated 600 matches similar to: "Input on application design"

2006 Jun 05
1
Selective Survival Statistics with R
Hello friends and fellow R users, I have a problem to which I have been unable to find a solution: I am gathering survival data on patients undergoing treatment with a new kind of stent. I want to generate survival data and plot survival curves of these patients based (among other things) on the treating physician. My data set has been tabulated in the following manner: Date (the date the stent
2009 May 11
3
Intermittently Get "Target filesystem does not support long file names" when copying file to Samba share
I have two CentOS servers running samba3-3.0.34-37. When I connect to a samba share from my Windows 2003 R2 servers, and then try to copy a file to it, I often get the message "target filesystem does not support long filenames." Sometimes it works and sometimes it doesn't. I've been fighting this problem for 2 years. I've replaced my Windows servers, changed my Windows
2016 Apr 29
0
OT, security: if you're in the US, and like your dentist, call them, *now*
If you like your dentist, *call* them, today. <http://krebsonsecurity.com/2016/04/dental-assn-mails-malware-to-members/>, and the URL says it all - they mailed a card with a USB key... and some of them have malware, and Krebs says not all virus scanners can detect it.... mark "got off the phone with my dentists' office a few minutes ago
2003 Dec 06
2
Difference between summary.lm() and summary.aov()
I have a simple linear model (fitted with lm()) with 2 independant variables : one categorical and one integer. When I run summary.lm() on this model, I get a standard linear regression summary (in which one categorical variable has to be converted into many indicator variables) which looks like : Estimate Std. Error t value Pr(>|t|) (Intercept) -3595.3 2767.1 -1.299
2011 Feb 28
2
What if my Windows AD Domain Controller Goes Down?
There are three DCs in my Windows 2003 AD domain, but I have noticed that only one of them is referenced in my krb.conf and krb5.conf. Should there be a reference to one or two of the other domain controllers? If the DC goes down, how will my Samba/Winbind servers authenticate? -- Eric Robinson Disclaimer - February 27, 2011 This email and any files
2006 Mar 31
2
Backslash Escaping in View
Ok, I''m hoping this won''t be a forehead slapper, but take a look at this code: physician.name.sub(/''/, "\\''") I''m trying to substitute a single quote with a backslash and a single quote. This seems pretty simple right? Well, someone kick me and tell me why it''s not :) Here''s what I''m getting if the
2003 Sep 05
3
Dotchart question
Sorry to keep asking elementary questions......I appreciate the help. I am trying to create a dotchart with the rows sorted according to the values, rather than the labels. When I try prof <- c('Accountant', 'Administrative assistant', 'Garment worker', 'Cook', 'Dentist', 'General practictioner', 'Graduate student', 'High level
2006 Sep 11
1
samba ldap pdc w/unix accounts: local unix and ldap unix users can't resolve uids to names on the server
* distro: ubuntu breezy ( 6.06 ) * samba version: shipped version with updates ( 3.0.22-1ubuntu3.1 ) * no ssl * openLDAP is running on the same machine as samba, and referenced as localhost/127.0.0.1 where applicable ( 2.2.26-5ubuntu2.1 ) * nscd is not installed, much less running I've set up a samba pdc with ldap by following the Samba Guide very closely, adapting it to Ubuntu/Debian where
2009 Jun 23
2
Long to wide format without time variable
Hi all, I am trying to convert a data set of physician death codings (each individual's cause of death is coded by multiple physicians) from long to wide format, but the "reshape" function doesn't seem to work because it requires a "time" variable to identify the sequence among the repeated observations within individuals. My data set has no order, and different
2004 Apr 14
1
Variable Descriptors
Is there a way to associate text descriptions with variables in a data.frame? For example... Let's say that in my data.frame I have a variable named var1. var1 represents the responses to the question "When was the last time you saw your physician?" When I tabulate the variable var1 I'd like the output to be a bit more descriptive and contain the more descriptive
2011 May 11
1
filtering out unwanted words in a Term Document Matrix
Hi Y'all, I am using the text mining package (tm). I am trying to filter out all of the words in a Term Document Matrix that are not in a list of words that I am interested in. I am using the following code: z<-tm_intersect(txt.dtm, c("communications", "safety", "climate", "blood", "surface", "cleanliness",
2007 Nov 30
1
meta-analysis on diagnostic tests (bivariate approach)
Hello friends of R list, Im a physician and Im not that good in statistics. I have posted similar email in the epi-sig list but no one aswered so far. Im cunducting a systematic review on two diagnostic test for a particular tropical disease. I found a free software that make most of the analysis called MetaDiSc. However there is a paticular analysis that I wuould like to try that it is not
2010 Aug 13
2
How to compare the effect of a variable across regression models?
Hello, I would like, if it is possible, to compare the effect of a variable across regression models. I have looked around but I haven't found anything. Maybe someone could help? Here is the problem: I am studying the effect of a variable (age) on an outcome (local recurrence: lr). I have built 3 models: - model 1: lr ~ age y = \beta_(a1).age - model 2: lr ~ age + presentation
2012 Nov 16
2
Calculateing means
Dear List, I have a data matrix with 570 columns containing 95 (samples) with 6 replicates each. How can I calculate the mean of the replicates for 95 samples? Thank you. The information contained in this electronic e-mail transmission and any attachments are intended only for the use of the individual or entity to whom or to which it is addressed, and may contain information that is
2006 Jun 10
1
Calculating survival for set time intervals
Hello friends and fellow R users, I have successfully tabulated and entered my survival data into R and have generated survival curves. But I would like to be able to determine what the survival rates are now at one month, three months, six months and one year. I have a data set, via.wall, which I have entered into R, and which generates the following Surv object: Surv(Days,Status==1) [1]
2006 Jan 26
1
Clustering Question
Hi group, My case has N physicians with each seeing M patients. One physician could have seen a group of patients, or, a patient could have been seen by multiple number of physicians. In order words, there are overlaps. Now, I have the following NxM matrix Patient#1 Patient#2 Patient#3 ....... Patient#m Physician#1 1 0 1 ....... 0 Physician#2
2010 Mar 16
0
an ordinal regression MCMC run high correlation
I am trying to model a clusterd ordinal response data (either 1, 2 or 3) called , the correponding physician of the patient is also in the data. Since it is ordinal, I used the ordinal logit model topbox[i]~discrete with probability P[j,1],p[j,2], p[j,3], j is the corresponding physician of the ith patient C[j] is the physician effect , a1 and a1+theta is the common cutpoints for all
2010 Mar 16
0
Fw: an ordinal regression MCMC run high correlation
I tried thinning of the mcmc run with 500,000 iteration. It looks like 100 or 200 is enough to remove the autocorrelation of a1 and tau. Is that too much thining? --- On Tue, 3/16/10, ping chen <chen1984612 at yahoo.com.cn> wrote: > From: ping chen <chen1984612 at yahoo.com.cn> > Subject: an ordinal regression MCMC run high correlation > To: r-help at r-project.org >
2008 Jan 16
1
Probability weights with density estimation
I am a physician examining an NHANES dataset available at the NCHS website: http://www.cdc.gov/nchs/about/major/nhanes/nhanes2005-2006/demo_d.xpt http://www.cdc.gov/nchs/about/major/nhanes/nhanes2005-2006/hdl_d.xpt http://www.cdc.gov/nchs/about/major/nhanes/nhanes2005-2006/tchol_d.xpt Thank you to the R authors and the foreign package authors in particular. Importing from the SAS export
2003 Oct 28
1
error message in simulation
Dear R-users, I am a dentist (so forgive me if my question looks stupid) and came across a problem when I did simulations to compare a few single level and two level regressions. The simulations were interrupted and an error message came out like 'Error in MEestimate(lmeSt, grps) : Singularity in backsolve at level 0, block 1'. My collegue suggested that this might be due to my codes