Displaying 20 results from an estimated 2000 matches similar to: "package survey"
2008 Oct 22
1
Package survey
Hi,
I’m using the svyby for total statistics, for example:
svyby(~p_igov,~div_a,desenho_nps,svytotal,drop.empty.groups=TRUE,vartype
=c("se","var","cvpct"))
In the numerical variable p_igov (and others) I have many non responses
but if I maintain the NA it doesn’t work.
summary(base_nps$p_igov)
Min. 1st Qu. Median Mean 3rd Qu. Max. NA's
2010 Aug 25
1
Surprising behaviour survey-package with missing values
Dear list,
I got some surprising results when using the svytotal routine from the
survey package with data containing missing values.
Some example code demonstrating the behaviour is included below.
I have a stratified sampling design where I want to estimate the total
income. In some strata some of the incomes are missing. I want to
ignore these missing incomes. I would have expected that
2006 Jul 07
2
Multistage Sampling
Dear WizaRds, dear Thomas,
First of all, I want to tell you how grateful I am for all your
support. I wish I will be able to help others along one day the same way
you do. Thank you so much. I am struggling with a multistage sampling
design:
library(survey)
multi3 <- data.frame(cluster=c(1,1,1,1 ,2,2,2, 3,3), id=c(1,2,3,4,
1,2,3, 1,2),
nl=c(4,4,4,4, 3,3,3, 2,2), Nl=c(100,100,100,100,
2006 Jun 18
1
Post Stratification
Dear WizaRds,
having met some of you in person in Vienna, I think even more fondly
of this community and hope to continue on this route. It was great
talking with you and learning from you. Thank you. I am trying to work
through an artificial example in post stratification. This is my dataset:
library(survey)
age <- data.frame(id=1:8, stratum=rep(
2012 Oct 11
2
survey package question
Hello,
I have got a cluster sample using an election dataset where I already
had the final results of a county-specific election. I am trying to
figure out what would be the best sampling design for my data.
The structure of the dataset is:
1) polling station (in general schools where people vote, for a
county, for example, there are 15 polling stations)
2) inside each polling station, there
2006 Feb 07
2
getting strata/cluster level values with survey package?
First, I appoligise for the rooky question, but...
I'm trying to obtain standard errors, confidence intervals, etc. from a
sample design and have been trouble getting the results for anything other
than the basic total or mean for the overall survey from the survey
package.
For example, using the following dataset,
strata,cluster,vol
A,1,18.58556192
A,1,12.55175443
A,1,21.65882438
2008 Sep 12
2
Fw: Complex sampling survey _ Use of survey package
--------------------------------------------------
From: "Ahoussou Sylvie" <sylvie.ahoussou at antilles.inra.fr>
Sent: Friday, September 12, 2008 9:48 AM
To: "Thomas Lumley" <tlumley at u.washington.edu>
Subject: Re: [R] Complex sampling survey _ Use of survey package
> Thanks for your answer
>
> I think I made a mistake when I recopied the 5 first rows of
2008 Sep 11
1
Complex sampling survey _ Use of survey package
Hello everybody
I don't understand how I'm supposed to use svydesign caracteristics to explain to R that my sampling design is the following one
Data base = tab1 here are the five first rows of the database (nrow = 11792)
num
esp
Quarters
Totcat
Totshp
Totgt
Tbtpos
fpc1
Totanim
Id_An
10
2045
G
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 Nov 02
2
"object not found" within function
Hi,
I am trying to write a function to compute many cross-tabulations with the -svytable- command. Here is a simplified example of the structure of my code (adapted from the -svytable- help file):
data(api)
func.example<-function(variable){
dclus1<-svydesign(id=~1, weights=~pw,data=apiclus1, fpc=~fpc)
svytable(~ variable, dclus1)
}
When I call this function with:
2005 Jun 16
1
Survey - Cluster Sampling
Dear WizaRds,
I am struggling to compute correctly a cluster sampling design. I want
to do one stage clustering with different parametric changes:
Let M be the total number of clusters in the population, and m the
number sampled. Let N be the total of elements in the population and n
the number sampled. y are the values sampled. This is my example data:
clus1 <-
2008 Sep 09
1
survey package
Version 3.9 of the survey package is now on CRAN. Since the last
announcement (version 3.6-11, about a year ago) the main changes are
- Database-backed survey objects: the data can live in a SQLite (or other
DBI-compatible) database and be loaded as needed.
- Ordinal logistic regression
- Support for the 'mitools' package and multiply-imputed data
- Conditioning plots,
2008 Sep 09
1
survey package
Version 3.9 of the survey package is now on CRAN. Since the last
announcement (version 3.6-11, about a year ago) the main changes are
- Database-backed survey objects: the data can live in a SQLite (or other
DBI-compatible) database and be loaded as needed.
- Ordinal logistic regression
- Support for the 'mitools' package and multiply-imputed data
- Conditioning plots,
2012 Sep 21
1
Exactly Replicating Stata's Survey Data Confidence Intervals in R
Hi everyone, apologies if the answer to this is in an obvious place. I've
been searching for about a day and haven't found anything..
I'm trying to replicate Stata's confidence intervals in R with the survey
package, and the numbers are very very close but not exact. My ultimate
goal is to replicate Berkeley's SDA website with R (http://sda.berkeley.edu/),
which seems to
2004 Sep 02
1
Question on survey package
Is there a way to use one of the functions in the survey package to get
a table of estimated percentages (or proportions) and the standard error
for each? For example, suppose that AGECODE AND SEX are two factors
with 5 and 2 levels.
The 5x2 AGECODE x SEX table would have the estimated percentage of
persons in each cell,
100*(sum of weights in the cell) / (sum of all weights)
and the std
2012 Feb 12
1
how to extract p values in svyglm
summary(result)
Call:
svyglm(Injury ~ seat, sD, family = quasibinomial(link = "logit"))
Survey design:
svydesign(~1, prob = NULL, strata = Data[, 1], weights = Data[,
4], data = Data, fpc = ~fPc)
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -4.256875 0.001421 -2996.7 <2e-16 ***
seatbad 0.681504 0.001689 403.4 <2e-16 ***
---
2008 Aug 06
1
Warning when using survey:::svyglm
Howdy,
Referencing the below exchange:
https://stat.ethz.ch/pipermail/r-help/2006-April/103862.html
I am still getting the same warning ("non-integer #successes in a
binomial glm!") when using svyglm:::survey. Using the API data:
library(survey)
data(api)
#stratified sample
dstrat<-svydesign(id=~1,strata=~stype, weights=~pw, data=apistrat, fpc=~fpc)
2010 Mar 26
1
return.replicates in survey pkg
How do I retrieve the replicates estimates from a crosstab done using
svyby?
Here is an example from the help page for svyby in the package:
> data(api)
> dclus1<-svydesign(id=~dnum, weights=~pw, data=apiclus1, fpc=~fpc)
> rclus1<-as.svrepdesign(dclus1)
>
> a <- svyby(~api99, ~stype, rclus1, svymean, return.replicates=TRUE)
> a$replicates
NULL
But, compare to
> b
2007 Sep 20
2
Package Survey
Hello,
How I use the function as.svrepdesign without memory.size problems?
desenho_npc_JK <- as.svrepdesign(desenho_npc,type="JKn")
Error: cannot allocate vector of size 161.3 Mb
In addition: Warning messages:
1: Reached total allocation of 1022Mb: see help(memory.size)
2: Reached total allocation of 1022Mb: see help(memory.size)
3: Reached total allocation of 1022Mb:
2010 Jul 22
1
svydesign syntax
This message is for those familiar with the survey package. I need to fit a
weighted Cox model to accommodate the sampling weights as I have a
case-control study with controls sampled at random from a database in a
ratio 2:1 to cases (whom were all sampled). I want to make sure I am using
the right svydesign syntax to specify this sampling design. Can anyone
please check if the statement below is