Displaying 20 results from an estimated 237 matches for "demographic".
2008 Aug 14
3
Comparison of demographics between 2 study samples
Dear All:
I have a clinical study where I would like to compare the demographic information for 2 samples in a study. The demographics include both categorical and continuous variables. I would like to be able to say whether the demographics are significantly different or not.
The majority of papers that I have read use multiple techniques to achieve this (e.g., t-test for...
2012 Mar 07
1
Demographic Variables in AIDS (Demand System)
Hi all,
I am using aidsEst( ) in "micEconAids" package to estimate Demand system.
But I would like to add more demographic variables in demand system. How can
I add those information?
for example:
mydata<-data.frame(p1,p2,p3,p4,
s1,s2,s3,s4,
totalexp,
house,age,urban)
priceNames<-c("...
2006 Feb 24
0
preloading children of child rows
...the admin app for an existing
java webapp. For this reason, I am constrained by the current database
structure, which does not by any means conform to the ideal rails
defaults.
Anyway, I have the following models:
class Provider...
belongs_to: login
class Login...
has_and_belongs_to_many :demographics
class Demograpics...
...
Everyone has a login. Everyone has one demographic row (why is it habtm
you ask? just bad database design). But not all logins are
providers--there are other kinds of users.
What I want to do is create a query with find() that will preload all
login and demographic...
2012 Feb 29
1
How to simulate demographic (specifically, sub-group) data?
I am a relatively new R user and have recently built a multivariate dataset without the demographic information.
Is there any package or code to simulate subgroup dataset (race, sex, age) using R?
Any help would be appreciated.
Thanks,
Alok
[[alternative HTML version deleted]]
2010 Dec 21
1
Cloud demographics
...rom the 'Cloud'? Ubuntu installations
currently trumps the combined numbers of Centos, Fedora and RHEL (not
that using Centos/Fedora/RHEL guarantees secure installations)
installations and I just wondered on that aspect.
On another note, I wonder how big a change will take place in the
demographics when Centos 6 'hits the streets'.
2012 Mar 17
2
Coalesce function in BBmisc, emoa, and microbenchmark packages
...d what it's intended to do. The documentation is generally pretty scant.
Working with two columns: Date of Death (DOD) and Last Known Date Alive (LKDA). One or the other column is populated for each of the patients in my dataframe and the other column is blank.
When I run code like "with(Demographics, coalesce(DOD, LKDA))", the function generates a value whenever DOD is not missing and generates NA otherwise (even though the value for LKDA is not missing). So, for example, I get an NA for the 8th element below, even though I have a value of "2008-03-25" for LKDA.
> with(Demo...
2008 Sep 15
1
Help... Organizing multiple spreadsheets data into a huge R data structure!
Hello R users,
I am relatively new to the R program, and I hope some of you can offer
me some suggestions on how to organize my data in R using some of the
more advanced data structuring technique. Here's my scenario:
I have date set of 50 participants (each with conditions and
demographic data), each participant performed 2x16 trials, for each
trial, there was specific information about the trial (i.e. errors,
and timing), and a spreadsheet-like large data set with headers. I
have to extract data from each spreadsheet-like data according to the
information about the specific trial....
2003 Aug 20
1
query on converting survey data from one structure to another
...tion is stored in a
file called "EA-HM-HH.TXT" where EA is the enumeration area number, HM is
the homestead number and HH is the household number. Within this file the
data is stored as follows,
###### file="5677-001-001.TXT" ######
EAnumber=5677
HMnumber=001
HHnumber=001
# Demographics section
Dserial=01 #first person in household
Dage=56
Dsex=1
Dserial=02 #second person in household
Dage=44
Dsex=2
Dserial=03 #second person in household
Dage=7
Dsex=2
# Agricultural inputs section
Amaize=200
Apumpkins=50
###### end of file ########
Note that in the demograpics section ther...
2003 Oct 23
2
GIS re-mapping / polygon overlap
In Germany the Unemployment Agency uses a sectioning of the german map that
is different from the usual Administrative Boundaries.
Some demographic data are available in Administrative Boundaries only, some
in Unemployment Boundaries only.
I would like to generate estimates in one boundary system of data availabe
in the other boundary system, and would appreciate advice concerning the
following questions:
- can someone provide mapping functi...
2005 Jan 21
6
Avoiding a Loop?
...)
mymatrix[,1] <- 1:5
for (i in 2:nr.of.columns) {
mymatrix[,i] <- myconstant * mymatrix[,i-1]
}
Can anyone give me some advice whether it is possible to avoid this loop
(and if yes: how)?
Any suggestions are welcome!
Thanks,
Roland
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2011 Jun 06
1
list demographics
Hi all,
I got curious about something, so in proper scientific fashion I
obtained some data and analyzed it.
Question: what is the female participation in the R-help email list?
Data: the most recent list postings, obtained from the website. I took
my best shot at classifying the names given in the email header as
male/female, but ended with a fair number of unknowns.
This dataset had 2797
2006 Nov 07
2
wrong fill colors in polygon-map
...*
Iab7.poly contains the polygons of 343 German districts
patenting$patbus contains the number of corporate patents per 100.000
inhabitants for each district
Any ideas would be appreciated!
Best regards,
Katharina
******************************
Katharina Frosch
Rostock Center for the Study of Demographic Change
Konrad-Zuse-Str. 1
18057 Rostock
Tel.: (0381) 2081-148
Fax: (0381) 2081-448
Mail: frosch@rostockerzentrum.de
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2017 Dec 14
1
Aggregation across two variables in data.table
Dear all,
I have a data.frame that includes a series of demographic variables for a
set of respondents plus a dependent variable (Theta). For example:
Age Education Marital Familysize
Income Housing Theta
1: 50 Associate degree Divorced 4
70K+ Owned with mortgage 9...
2017 Mar 03
2
Bug in nlm()
...to R's Bugzilla. However, I'm not a member of Bugzilla. Could anyone be so kind to add me to R's Bugzilla members or let me know to whom I should send the bug report?
Thank you in advance.
Kind regards,
Marie B?hnstedt
Marie B?hnstedt, MSc
Research Scientist
Max Planck Institute for Demographic Research
Konrad-Zuse-Str. 1, 18057 Rostock, Germany
www.demogr.mpg.de<http://www.demogr.mpg.de/>
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2006 Jul 28
2
Extracting from a matrix w/o for-loop
? stato filtrato un testo allegato il cui set di caratteri non era
indicato...
Nome: non disponibile
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20060728/957eb23c/attachment.pl
2018 Jan 19
1
Web scraping different levels of a website
...t; <div class="data-access-icon data-access-remote" title="Data
> available from external repository"></div>
> <h2 class="title">
> <a href="http://catalog.ihsn.org/index.php/catalog/7118"
> title="Demographic and Health Survey 2015">
> Demographic and Health Survey 2015
> </a>
> </h2>
>
> Notice how the number you are after is contained within the
> "survey-row" div element, in the data-url attribute. Or alternatively
> w...
2006 May 05
3
OT: Require e-mail during sign up process?
...mail address during the process. An argument for not requiring
e-mail during registration within our team (one I am arguing against) is
that not everybody has an e-mail address, so we shouldn''t require it. But,
being in the MySpace generation, I''d imagine that the majority of this
demographic have at least one e-mail address they check on occasion.
However, I don''t have any hard stats on Internet users who don''t have
e-mail, but I''d imagine it to be very low, but this is only a guess.
Now, I am curios on people''s thoughts on requiring or not requirin...
2005 May 15
1
Save parameters from optim during iteration procedure
...#### what I would need to save
[...]
X = -0.292893 0.292893
[...]
X = 0.0942275 -0.0942275
[...]
X = -0.00110391 0.00110391
[...]
X = 1.93949e-006 -1.93949e-006
[...]
X = -4.98008e-013 4.98008e-013
[...]
Thanks in advance,
Carlo Giovanni Camarda
Camarda Carlo Giovanni
Max Planck Institute for Demographic Research
Konrad-Zuse-Strasse 1
18057 Rostock, Germany
Tel: +49 (0)381 2081 172
Fax: +49 (0)381 2081 472
Camarda@demogr.mpg.de
+++++
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2009 Apr 08
1
persp3d and rgl.viewpoint for rotating 3D plots
...rgl.viewpoint(coo[i])
#filename <- paste("pic", formatC(i,digits=1,flag="00"), ".png", sep="")
#rgl.snapshot(filename)
}
-----------------------------------------------------
Dr. Carlo Giovanni Camarda
Research Scientist
Max Planck Institute for Demographic Research
Laboratory of Statistical Demography
Konrad-Zuse-Straße 1
18057 Rostock - Germany
Phone: +49 (0)381 2081 172
Fax: +49 (0)381 2081 472
camarda@demogr.mpg.de
http://www.demogr.mpg.de/en/staff/camarda/default.htm
-----------------------------------------------------
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This mail has...
2011 Nov 09
4
raking weighting
Hi everyone,
Does anyone know if there is a package to compute raking weights using
R? What I need is to create a variable with weights base in some
demographic variables (e.g. sexo, age group, area) using the raking
procedure.
Thank you in advance!
--
Sebasti?n Daza