On Thu, 6 Sep 2007, eugen pircalabelu wrote:
Good afternoon!
I'm trying to use the Survey package for a stratified sample which has
4 criteria on which the stratification is based. I would like to get the
corrected weights and for every element i get a weight of 1
E.g: tipping
On Thu, 6 Sep 2007, Tobias Verbeke wrote:
eugen pircalabelu wrote:
I'm trying to use the survey package to get a better point of view
for my data, but i need some piece of advice:
i have some data from a survey which has been stratified using 2
criteria: region(7 values), size of
-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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On Sun, 9 Sep 2007, eugen pircalabelu wrote:
A short example:
stratum id weight nh Nh y sex
1 1 3 5 15 23 1
1 2 3 5 15 25 1
1 3 3 5 15 27 2
1 4 3 5 15 21 2
1 5 3 5 15 22 1
2 6
On Mon, 10 Sep 2007, Sigbert Klinke wrote:
Hi,
sapply(formals(readBin), mode)
con what n sizesignedendian
namename numeric logical logicalcall
returns for the mode of size logical. But in the documentation is said
that size should be integer. Does
in
response.
-thomas
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in X1--Y2, but in R it needs another argument specifying the
data frame, so it can't really be a binary operator.
The double colon :: and triple colon ::: are already used for namespaces,
and a search of r-help reveals two previous, different, suggestions for
%:%.
-thomas
Thomas
to me like max() and summary(m)[6] ought to return the same
number. Am I doing something wrong?
They do return the same number, they just print it differently. summary()
prints four significant digits by default.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
wiped out any
previous methods for bar() -- eg, try
setMethod(bar,baz, function(object) print(baz))
before you redefine bar(), and notice that getMethod(bar,baz) no longer
finds it.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University
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On Thu, 23 Aug 2007, [EMAIL PROTECTED] wrote:
Hi Folks,
Does anyone know if (apparently not on CRAN) there is
any archive of older versions of R packages?
Yes. On CRAN. At the bottom of the page listing all the packages there is
a section
-
Related Directories
Archive
Thomas Lumley Assoc. Professor, Biostatistics
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On Fri, 17 Aug 2007, Cody Hamilton wrote:
snip
I have a few specific comments/questions that I would like to present to
the R help list.
snip
2. While the document's scope is limited to base R plus recommended
packages, I believe most companies will need access to functionalities
provided
likelihood.
The special case you may be thinking of is that in some problems the
E-step is equivalent to computing E[missing data | observed data] rather
than the more general E[loglikelihood|observed data]
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL
not clear about if or better how I can use the
weights in it. From the description of the weights
argument of glm it seems to me that I cannot plug
these weights in there.
You want svyglm() in the survey package.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL
. This is useful if you wanted
to summarize the best few thousand models on 30 variables but not if you want a
single model. On the other hand, regsubsets() isn't useful if you want a single
model anyway.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED
for.
-thomas
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-guide.html
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specified.
To paraphrase the Hitchikers' Guide: This must be some definition of the word
'robust' that I was not previously aware of. :)
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
posted. It provides fairly
comprehensive facilities for analysis of complex survey designs. Major
additions since 2.9 are calibration estimators (aka GREG or generalized
raking), simple two-phase designs, and smoothing.
-thomas
Thomas Lumley Assoc. Professor
to be =1, as this is implied by the first
constraint.
It might be interesting to find out if some automated Lagrange-multiplier
approach could be built into constrOptim() for equality constraints, but
it is not a high enough priority that I am likely to do it.
-thomas
Thomas Lumley
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On Thu, 2 Aug 2007, Monica Pisica wrote:
Hi,
I am getting some strange results using round - it seems that it depends if
the number before the decimal point is odd or even
Yes. This is explained in the help page for round().
-thomas
Thomas Lumley Assoc
not understanding this time?
par() is in the 'graphics' package, which is not loaded by the time .Rprofile
runs. You want
graphics::par(bg='white')
Information from which this can be deduced and examples are in ?Startup, though
it isn't explicitly stated there.
-thomas
Thomas Lumley
On Thu, 26 Jul 2007, Ben Saylor wrote:
Hi,
I am a Stata user new to R. I am using read.dta to read a Stata file
that has variables with value labels. read.dta converts them to
factors, but seems to recode them with values from 1 to number of
factor levels (looking at the output of
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
, reproducible code.
Thomas Lumley Assoc. Professor, Biostatistics
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it is just a matter of adding
predictors.
Now, I might well use a linear mixed model in this context, but he did
fairly clearly indicate that wasn't he was looking for.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University
On Thu, 19 Jul 2007, Fluss wrote:
Hello!
I am using for logistic regression in survey data the svyglm procedure.
I wondered how does the strata effect estimates SE (in addition to the
weights given proportional to population size).
I know that for simple regression measurements of each strata
On Sun, 15 Jul 2007, Tobias Verbeke wrote:
The survey package of Thomas Lumley has very broad functionality for the
analysis of data from complex sampling designs. Please find below the
homepage of the package (which is available on CRAN):
http://faculty.washington.edu/tlumley/survey/
I
/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
mailing list
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Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University
On Thu, 5 Jul 2007, Giuseppe PEDRAZZI wrote:
I am using R 2.5.0, windows XP - italian language.
I was perfoming some calculation on fractional exponential and
I found a strange behaviour. I do not know if it is really a bug, but I would
expect
a different answer from R.
I was trying the
On Sat, 30 Jun 2007, Paul Laub wrote:
Dear all,
Does R offer a means by which a function can determine
whether its return value is assigned? I am using R
2.4.1 for Windows.
No
Suppose what I am looking for is called
return.value.assigned. Then one might use it like
this
myfunction
On Fri, 22 Jun 2007, Ben Bolker wrote:
Christian Bieli christian.bieli at unibas.ch writes:
Hi there
During execution of sapply I want to extract the number of times the
function given to supply has been executed. I came up with:
mylist - list(a=3,b=6,c=9)
the bic and cp criterias are both included in this
function. But seems like they are not calculated by
bic=-n*log(RSS/n)-(p+1)*log(n)
and
cp=(RSS/sigma_hat^2)-(n-2*p-2)
Could you please let me know what formula used for these two criterias?
Thank you !
Linda
Thomas Lumley
-contained, reproducible code.
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Thomas Lumley Assoc. Professor, Biostatistics
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On Fri, 15 Jun 2007, Chris Linton wrote:
I'm trying to read in a Stata file but I've never used this function (
read.dta). It's the only one that seems to come close to working, but I
keep getting this error:
data-read.dta(C:/Documents and
Settings/Chris/Desktop/S4412/catestscores.dta)
On Wed, 13 Jun 2007, Uwe Ligges wrote:
Rina Miehs wrote:
Hello
i have a data frame in R that some SAS users need to use in their
programs, and they want it in a dat file, is that possible?
What is a dat file?
and which functions to use for that?
I *guess* write.table() will do the
On Mon, 11 Jun 2007, [EMAIL PROTECTED] wrote:
Hi all,
Has any of you implemented code for non-negative matrix factorization to
solve
Y=T P' +E; dim(Y)=n,p ; dim(T)=n,nc; dim (P)=(p,nc); dim(E)=n,p
where T and P must be non-negative and E either Gaussian or Poisson noise.
I'm looking
On Wed, 6 Jun 2007, Benilton Carvalho wrote:
Hi everyone,
say I have a function called 'foo', which takes the argument arg1.
Is there any mechanism that I can use to learn about the variable
where foo(arg1) is going to be stored?
No. This information isn't available explicitly even at the
it... Because the
dataframe is huge, it takes almost an hour to do the task. Thanks
so much in advance!
Does this do what you want in a faster way?
rowsum() should probably be faster (but perhaps not much).
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL
On Mon, 28 May 2007, Martin Maechler wrote:
LuckeJF == Lucke, Joseph F [EMAIL PROTECTED]
on Fri, 25 May 2007 12:29:49 -0500 writes:
LuckeJF Most standard tests, such as t-tests and ANOVA,
LuckeJF are fairly resistant to non-normalilty for
LuckeJF significance testing. It's the
On Mon, 21 May 2007, carol white wrote:
Hi, coxfilter function in genefilter package uses coxph to fit a model
to filter genes. how come that coxfilter could converge to find a
solution in cox model fitting using a data matrix of 8000 variables and
600 samples but coxph doesn't converge
On Mon, 21 May 2007, John Fox wrote:
In retrospect, I didn't specify the problem clearly: What I want to be able
to do is to place text on a background of arbitrary (but known RGB) colour
so that the text is legible. I guess that this is better described as a
contrasting than a complementary
svychisq() directly rather than via
summary(svytable())?
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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On Tue, 22 May 2007, [EMAIL PROTECTED] wrote:
Do I miss here something?
Yes.
dtaa =
read.table(http://www.ats.ucla.edu/stat/mplus/examples/ma_snijders/mlbook1.dat;,
sep=,)
head(dtaa) # shows the data as it should be
save(dtaa,dtaa,file=c:/dtaa)
d = load(c:/dtaa)
From ?load
On Fri, 18 May 2007, jiho wrote:
Hello,
I am facing a problem with lapply which I think''' may be a bug.
This is the most basic function in which I can reproduce it:
myfun - function()
{
foo = data.frame(1:10,10:1)
foos = list(foo)
fooCollumn=2
cFoo =
On Wed, 16 May 2007, Zack Weinberg wrote:
Is there any way to set options during the evaluation of a particular
expression, with them automatically reset when control leaves that
expression, however that happens? Kind of like let on a special
variable does in Lisp. I naively tried
You
, in the US, it depends on the data and their source.
Publishers that I have talked to tend to claim that data are definitely
copyrightable, but since they tend to own the copyrights one might do well
to recall the immortal words of Mandy Rice-Davies.
-thomas
Thomas Lumley
On Fri, 11 May 2007, Andrew Smith wrote:
I thought it would be simplest to build on already existing functions like
regsubsets in package leaps. It's easy enough to calculate the PRESS
criterion for a fitted lm object, but I'm having trouble deciphering the
structure of the regsubsets objects
.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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calculation, though, you probably want to fix only one
margin, which is a much simpler problem, and if the table is not too large
it would not be difficult to compute the exact probability for each
element of the sample space and so get exact power.
-thomas
Thomas Lumley
On Wed, 2 May 2007, Tomas Mikoviny wrote:
Hi all R positive,
does anyone know how to refer R in article?
Every time you start R it says (in part)
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages
On Wed, 25 Apr 2007, Leeds, Mark (IED) wrote:
This is a terminology question not related to R. The literature often
says that OLS is inefficient relative to GLS if the residuals in
the system are correlated ( and the RHS sides of each are not identical
). Does this mean that OLS overestimates
01326371852
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On Tue, 17 Apr 2007, Robert McFadden wrote:
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jim Lemon
Sent: Tuesday, April 17, 2007 12:37 PM
To: Pedro A Reche
Cc: r-help@stat.math.ethz.ch
Subject: Re: [R] help comparing two median with R
Pedro A
On Tue, 17 Apr 2007, Frank E Harrell Jr wrote:
The points that Thomas and Brian have made are certainly correct, if one is
truly interested in testing for differences in medians or means. But the
Wilcoxon test provides a valid test of x y more generally. The test is
consonant with the
. Checking the r-announce
archives shows that 2.0.0 came out in October 2004 and 1.9.1 in June 2004.
Describing 1.9.1 as the latest version was inaccurate, but it may well
have been a more recent version than for most of the other packages they
examined.
-thomas
Thomas Lumley
On Thu, 5 Apr 2007, John Kane wrote:
Heck. I'd be happy to get an answer to what is
happening here:
mac - spss.get(H:/ONTH/Raw.data/Follow.sav)
Warning message:
H:/ONTH/Raw.data/Follow.sav: Unrecognized record type
7, subtype 16 encountered in system file
It means that your file had a
On Thu, 5 Apr 2007, John Kane wrote:
Heck. I'd be happy to get an answer to what is
happening here:
mac - spss.get(H:/ONTH/Raw.data/Follow.sav)
Warning message:
H:/ONTH/Raw.data/Follow.sav: Unrecognized record type
7, subtype 16 encountered in system file
It means that your file had a
On Tue, 10 Apr 2007, Thomas W. Volscho wrote:
Dear List,
I have a dataset that provides sampling weights (National Survey of
Family Growth 2002). I want to produce a cross-tabulation and use the
provided sampling weights to obtain representative population estimates.
(I believe they are
to increase the size of datasets just as fast as it
increases computational power.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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On Thu, 5 Apr 2007, John Kane wrote:
Heck. I'd be happy to get an answer to what is
happening here:
mac - spss.get(H:/ONTH/Raw.data/Follow.sav)
Warning message:
H:/ONTH/Raw.data/Follow.sav: Unrecognized record type
7, subtype 16 encountered in system file
It means that your file had a
On Wed, 4 Apr 2007, Matthew Suderman wrote:
I wanted to create a list of functions whose output differs depending
the value of a variable when the function was created. Generally this
did not work. Each function was exactly the same, as in the simple
example below:
get_data_function -
://faculty.washington.edu/tlumley/b514/exacttest.R
with .Rd files at
http://faculty.washington.edu/tlumley/b514/man/
[credits: this is all based on ideas from Scott Emerson]
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
degrees of freedom.
pchisqsum() in the survey package does this.
-thomas
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[EMAIL PROTECTED] University of Washington, Seattle
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-guide.html
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of claim.
I would argue that computational convenience on the one hand, and the ability
to exercise lots of nice mathematical tools on the other hand have also
contributed to the continuing popularity of the Cox model.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
On Tue, 27 Mar 2007, Peter Dalgaard wrote:
The way around this is to add a further layer of substitute() to insert
the value of e:
eval(substitute(substitute(call,list(u2=quote(x),u3=1)),list(call=e[[1]])))
u1 + x + 1
Or eval(do.call(substitute, list(e[[1]], list(u2=quote(x),u3=1)))
guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
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.
-thomas
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On Mon, 19 Mar 2007, Gabor Grothendieck wrote:
On 3/19/07, Thomas Lumley [EMAIL PROTECTED] wrote:
On Thu, 15 Mar 2007, Andrew Perrin wrote: (in part)
2.) Yes, by all means you should use linux instead of windows. The
graphics output is completely compatible with whatever applications you
on most R tasks (though it will still
be twice as pretty, of course).
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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On Thu, 8 Mar 2007, Andrew Perrin wrote:
Greetings-
Running R 2.4.0 under Debian Linux, I am getting a memory error trying to
read a very large file:
library(foreign)
oldgrades.df - read.spss('Individual grades with AI (Nov 7
2006).sav',to.data.frame=TRUE)
Error: cannot allocate vector
.
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the arithmetic solution. Also, I
didn't check if a solution like this would still be faster when both arguments
are vectors (but there was a recent mailing list thread where someone else did).
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University
On Tue, 6 Feb 2007, Muenchen, Robert A (Bob) wrote:
That sounds like a good idea. The name R makes it especially hard to
find job postings, resumes or do any other type of search. Googling
resume+sas or job opening+sas is quick and fairly effective (less a
few airline jobs). Doing that with R
On Mon, 5 Feb 2007, John Sorkin wrote:
When running a cox proportional hazards model ,there are two ways to
deal with age,
including age as a covariate, or to include age as part of the
follow-up time, viz,
snip
I would appreciate any thoughts about the differences in the
interpretation of
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On Thu, 1 Feb 2007, Thomas Friedrichsmeier wrote:
Hi!
I'm having trouble with importing spss files containing non-ascii characters
Peter has explained what is going on. It would be ideal for read.spss()
to do the translation to the current locale. This would require knowing
what encoding
On Sun, 21 Jan 2007, Lynette wrote:
Dear all,
I am using Rdqags in C to realize the integration. It seems for the
continous C function I can get correct results. However, for step functions,
the results are not correct. For example, the following one, when integrated
from 0 to 1 gives 1
On Mon, 22 Jan 2007, Lynette wrote:
Well,
I have no idea either. I can get correct answers for continous functions but
incorrect for step functions.
I have just tried using Rdqags from C for the function x0 and it worked
fine (once I had declared all the arguments correctly). The code is
On Mon, 22 Jan 2007, Lynette wrote:
Dear all, especially to Thomas,
I have figured out the problem. For the step function, something wrong with
my C codes. I should use the expression ((x=0.25)(x=0.75)) ? 2:1 instead
of ((x=1/4)(x=3/4)) ? 2:1 ). Have no idea why 0.25 makes difference from
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On Fri, 12 Jan 2007, zhijie zhang wrote:
Dear friends,
I want to do a unequal probability sampling, that is, Probability
Proportionate to size, Is it right for the following programs?
Say my original dataset is:
ID Population
1 100
2 200
3 300
IF the population is large
On Wed, 10 Jan 2007, [EMAIL PROTECTED] wrote:
I am new to R and have been comparing CPH survival analysis hazard ratios
between R and SAS PhReg. The binary covariates' HRs are the same, however
the continuous variables, for example age, have quite different HRs
although in the same direction.
On Sat, 6 Jan 2007, Zoltan Kmetty wrote:
Hi!
I had some memory problem with R - hope somebody could tell me a solution.
I work with very large datasets, but R cannot allocate enough memoty to
handle these datasets.
You haven't said what you want to do with these datasets.
-thomas
way to do it. Often, there is.
Sometimes, there isn't.
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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inappropriate).
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
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1000115558 7630.3
-thomas
Thomas Lumley Assoc. Professor, Biostatistics
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On Tue, 19 Dec 2006, DEEPANKAR BASU wrote:
Hi R users!
I am new to R. When I try to attach a simple dataset using the attach()
command, I get the following message:
attach(data1)
The following object(s) are masked from package:base :
write
Can someone tell me what this
On Tue, 19 Dec 2006, Thomas Lumley wrote:
It also means that you have missed at least three upgrades of R (the
fourth is just out) since in version 2.3.0 and more recent you don't get
the warning when a variable and a function have the same name, only for
two variables or two functions
commented, minimal, self-contained, reproducible code.
Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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