Displaying 9 results from an estimated 9 matches for "citeulike".
2008 Aug 18
1
Survey Design / Rake questions
I'm trying to learn how to calibrate/postStratify/rake survey data in
preparation for a large survey effort we're about to embark upon. As a
working example, I have results from a small survey of ~650 respondents,
~90 response fields each. I'm trying to learn how to (properly?) apply
the aforementioned functions.
My data are from a bus on board survey. The expansion in the
2009 Jan 19
3
bootstrapped eigenvector method following prcomp
G'Day R users!
Following an ordination using prcomp, I'd like to test which variables
singnificantly contribute to a principal component. There is a method
suggested by Peres-Neto and al. 2003. Ecology 84:2347-2363 called
"bootstrapped eigenvector". It was asked for that in this forum in
January 2005 by J?r?me Lema?tre:
"1) Resample 1000 times with replacement entire
2008 Nov 04
2
ordered logistic regression of survey data with missing variables
Hello:
I am working with a stratified survey dataset with sampling weights
and I want to use multiple imputation to help with missingness.
1. Is there a way to run an ordered logistic regression using both a
multiply imputed dataset (i.e. from mice) and adjust for the survey
characteristics using the weight variable? The Zelig package is able
to do binary logistic regressions for survey
2011 Aug 31
0
[LLVMdev] Getting rid of phi instructions?
> the next tool reading the IR does not like phis when it's generating VHDL.
If you're doing a conversion from LLVM IR to some other non-SSA IR
(like the tool's), you can do the phi node removal yourself as you
convert. Basically, every predecessor block referenced by a phi node
will have an assignment to that variable before branching. There are
techniques to make the resultant
2011 Aug 31
4
[LLVMdev] Getting rid of phi instructions?
On 30.8.2011, at 19.19, Eli Friedman wrote:
> reg2mem won't do quite this transformation... not sure exactly what you need.
I need to get rid of phis. This code is compiled from C++ and for some functions
there are no phis, but multiple call instructions. I am targeting hardware
in the end, and the next tool reading the IR does not like phis when it's generating VHDL.
My questions may
2013 Jan 26
2
different legends in lattice panels
...+33 6 37 67 21 40
Courriel-1 : Luis.Tito-de-Morais@ird.fr
Courriel-2 : Luis.Titodemorais@univ-brest.fr
Pages web :
Lab. : http://www-iuem.univ-brest.fr/UMR6539/recherche/equipe-5
Pers. : http://ird.academia.edu/LuisTitodeMorais
Reshal : http://www.netvibes.com/reshal#Accueil
Biblio. : http://www.citeulike.org/user/ltitodem
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2009 Aug 31
1
Test for stochastic dominance, non-inferiority test for distributions
Dear R-Users,
Is anyone aware of a significance test which allows
demonstrating that one distribution dominates another?
Let F(t) and G(t) be two distribution functions, the
alternative hypothesis would be something like:
F(t) >= G(t), for all t
null hypothesis: F(t) < G(t), for some t.
Best wishes,
Matthias
PS. This one would be ok, as well:
F(t) > G(t), for all t
null
2008 Aug 15
2
Design-consistent variance estimate
Dear List:
I am working to understand some differences between the results of the
svymean() function in the survey package and from code I have written
myself. The results from svymean() also agree with results I get from
SAS proc surveymeans, so, this suggests I am misunderstanding something.
I am never comfortable with "I did what the software" does mentality, so
I am working to
2009 Jan 12
3
polychoric correlation: issue with coefficient sign
Hello,
I am running polychoric correlations on a dataset composed of 12 ordinal and
binary variables (N =384), using the polycor package.
One of the association (between 2 dichotomous variables) is very high using
the 2-step estimate (0.933 when polychoric run only between the two
variables; but 0.801 when polychoric run on the 12 variables). The same
correlation run with ML estimate returns a