Hi, I hope some one can help. I need to compute Thurston's case 5 on a large
set of data. I have gotten as far as computing the proportional preference
matrix but the next math is beyond me.
Here us my matrix
0.500 0.472 0.486 0.587 0.366 0.483 0.496 0.434
0.528 0.500 0.708
On Mon, 2009-01-26 at 08:52 +, Andreas Klein wrote:
Hello.
How can I analyse the cross-correlation between two time series with ccf, if
one of the time series need to be differenced, so it is stationary?
The two time series differ when in length and maybe ccf produces not the
correct
Hi there,
I got a piece of code for the Iris data which allows to display correlation
coefficients for each Iris species in the lower panel (color coded). I would
now like to add e.g. a * to show the significance of each correlation next
to the correlation coefficient.
Furthermore I would
Hi,In SPlus, I use the function 'cluster' with GLM to adjust for correlated
errors within a cluster ( e.g. cluster(ID)) as a covariate. Is there a
similar function in R to use with GLM ? I am new to R. Thanks.
V.K. Chetty
--
Professor of Family Medicine
Boston University
Tel: 617-414-6221,
Hello. I have what I'm sure is a very simple question. Hopefully someone
can help. I can't seem to find the maximum height of a histogram. In
matlab it would be simple to say max(hist(x, 100)), but this doesn't seem to
work in R. Any input would be greatly appreciated.
Brendan
I am surprised: a Generalized Linear Model does not have clusters, nor
did glm() allow clusters in any version of S-PLUS I have used.
I suspect this is a GEE model, for which see packages gee, geepack and
yags (not on CRAN) under R. But you can also have Generalized Linear
Mixed Models, and
Brendan Cusick wrote:
Hello. I have what I'm sure is a very simple question. Hopefully someone
can help. I can't seem to find the maximum height of a histogram. In
matlab it would be simple to say max(hist(x, 100)), but this doesn't seem to
work in R. Any input would be greatly appreciated.
Dear Jared,
See ?thurstone in the psych package. RSiteSearch(Thurstone) turns this up
as the first hit. Also see the BradleyTerry package for the similar
Bradley-Terry model.
Regards,
John
--
John Fox, Professor
Department of Sociology
McMaster University
Hamilton,
Gabor Grothendieck wrote:
On Sat, Jan 31, 2009 at 6:01 PM, Wacek Kusnierczyk
th some additional boring pedantry wrt. ?gsubfn, which says:
If 'replacement' is a formula instead of a function then a one
line function is created whose body is the right hand side of the
formula and whose
Because of the enormous volume of mail on R-help, I have split up the
search archives in my R Site, which you can access directly (and
slightly differently) at:
http://finzi.psych.upenn.edu/nmz.html
http://finzi.psych.upenn.edu/search.html
http://finzi.psych.upenn.edu/
or
Hi Eugene,
I didn't get the attachment, so I'm not sure what error messages you
are getting. But I think \usepackage{sweave} should be
\usepackage{Sweave} (with a capital S).
-Ista
-- Forwarded message --
From: eugen pircalabelu eugen_pircalab...@yahoo.com
To: R-help
I want to do something like this.
avo(q~a+b+c+d+e+f+g+h+i+j+k+l)
avo(r~a+b+c+d+e+f+g+h+i+j+k+l)
avo(s~a+b+c+d+e+f+g+h+i+j+k+l)
(There's likely a better way to do this actually, but I think this'll work.)
How do I define e=a+b+c+d+e+f+g+h+i+j+k+l such that the following works?
avo(q~e)
avo(r~e)
oops, I mean aov
On Sun, Feb 1, 2009 at 9:27 AM, Thomas Levine thomas.lev...@gmail.com wrote:
I want to do something like this.
avo(q~a+b+c+d+e+f+g+h+i+j+k+l)
avo(r~a+b+c+d+e+f+g+h+i+j+k+l)
avo(s~a+b+c+d+e+f+g+h+i+j+k+l)
(There's likely a better way to do this actually, but I think this'll
Tom La Bone booboo at gforcecable.com writes:
The mle2 function (bbmle library) gives an example something like the
following in its help page. How do I access the coefficients, standard
errors, etc in the summary of a?
example(mle2)
coef(summary(fit1))
Ben Bolker
Try this:
e - as.formula(paste(q, paste(letters[1:12], collapse = + ), sep = ~
))
aov(e)
On Sun, Feb 1, 2009 at 12:27 PM, Thomas Levine thomas.lev...@gmail.comwrote:
I want to do something like this.
avo(q~a+b+c+d+e+f+g+h+i+j+k+l)
avo(r~a+b+c+d+e+f+g+h+i+j+k+l)
Try:
aov(yield ~., npk)
On Sun, Feb 1, 2009 at 9:27 AM, Thomas Levine thomas.lev...@gmail.com wrote:
I want to do something like this.
avo(q~a+b+c+d+e+f+g+h+i+j+k+l)
avo(r~a+b+c+d+e+f+g+h+i+j+k+l)
avo(s~a+b+c+d+e+f+g+h+i+j+k+l)
(There's likely a better way to do this actually, but I
hello !
I have question concerning *kernel density plots*:
how to plot density vs. the probability of a vector, when that vector
is very short (5-10 values)?
I tried:
plot(density(x))
or
hist(x,probability=T,border=white)
lines(density(x))
for small length of vectors, the ylab is not
gregor rolshausen wrote:
hello !
I have question concerning *kernel density plots*:
how to plot density vs. the probability of a vector, when that vector
is very short (5-10 values)?
I tried:
plot(density(x))
or
hist(x,probability=T,border=white)
lines(density(x))
for small length
I had asked this question once before about a function in the NADA
package, and you provided this neat response:
[Begin quote]
An approach that may yield somewhat more self-documenting code would be
to examine either the fit object or the summary object with str and then
to access results by
sorry!
I ment to plot the probability vs. the values of course. not the
probability vs. the density...
cheers,gregor
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
Jim, you are a genius. Thanks for the help.
Brendan
On Sun, Feb 1, 2009 at 5:44 AM, Jim Lemon j...@bitwrit.com.au wrote:
Brendan Cusick wrote:
Hello. I have what I'm sure is a very simple question. Hopefully someone
can help. I can't seem to find the maximum height of a histogram. In
On Sun, Feb 1, 2009 at 6:44 AM, Peter Dalgaard p.dalga...@biostat.ku.dk wrote:
Gabor Grothendieck wrote:
On Sat, Jan 31, 2009 at 6:01 PM, Wacek Kusnierczyk
th some additional boring pedantry wrt. ?gsubfn, which says:
If 'replacement' is a formula instead of a function then a one
line
Hi All:
How does one run R in batch mode on Windows?
Thank you!
Phil Smith
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide
gregor rolshausen wrote:
sorry!
I ment to plot the probability vs. the values of course. not the
probability vs. the density...
You have plotted the histogram, i.e. the empirical version of the
density. If you want to plot a (empirical?) probability function, you
might want to look at
Peter Dalgaard wrote:
Gabor Grothendieck wrote:
On Sat, Jan 31, 2009 at 6:01 PM, Wacek Kusnierczyk
th some additional boring pedantry wrt. ?gsubfn, which says:
If 'replacement' is a formula instead of a function then a one
line function is created whose body is the right hand side of
#this is all assuming you want Bray-Curtis distances, but there are
other distances involved.
library(vegan)
library(labdsv)
dis.bc - vegdist(your.data)
bc4d.nmds - nmds(dis.bc,4)
ordcomp(bc4d.nmds,dis.bc,dim=4)
On Sat, Jan 31, 2009 at 6:53 AM, Titus von der Malsburg
malsb...@gmail.com wrote:
Obviously my last bugfix introduced another issue. Arrgh.
I will need to generate some more test cases.
Not that funny to maintain code that I'd never use myself anymore since
BRugs has been released...
Best,
Uwe Ligges
Mike Meredith wrote:
Problem with the change is that none of our
Let me admit at this point that I am not really sure that S4 classes
is the correct classification of such @-using extraction processes.
The documentation refers to formal methods and I don't yet have
enough knowledge to know that how tightly slots and formal classes are
linked with S4 or
herwig wrote:
Hi there,
I got a piece of code for the Iris data which allows to display correlation
coefficients for each Iris species in the lower panel (color coded). I would
now like to add e.g. a * to show the significance of each correlation next
to the correlation coefficient.
Hello,
I'm using a 64bit Linux with 16GB of RAM. I'd like to limit the memory
that the R process can use so I'm trying to use --max-vsize switch.
However, it is seems that I can't enforce a limit above 2GB.
shl...@hippo:~$ uname -a
Linux hippo 2.6.24-16-generic #1 SMP Thu Apr 10 12:47:45 UTC
on 02/01/2009 10:45 AM David Winsemius wrote:
Let me admit at this point that I am not really sure that S4 classes is
the correct classification of such @-using extraction processes. The
documentation refers to formal methods and I don't yet have enough
knowledge to know that how tightly
Hi Fello:
I am asked to compute the Kaplan-Meier estimator of data with right censoring
without using surfit(). Does anyone know how to use R to compute the estimators?
The data should input X: vector of right-censored observed time for n
individuals, and d: vector of failure time indicators
chen chen wrote:
Hi Fello:
I am asked to compute the Kaplan-Meier estimator of data with right
censoring without using surfit().
I.e., a homework problem...
For such problem people will at best offer hints.
The KM estimator is the
--- cumulative product
of
--- decrements
that depend
Wacek Kusnierczyk wrote:
Gabor Grothendieck wrote:
On Sat, Jan 31, 2009 at 4:46 PM, Wacek Kusnierczyk
waclaw.marcin.kusnierc...@idi.ntnu.no wrote:
to extend the context, if you were to solve the problem in perl, the
regex below would work in perl 5.10, but not in earlier
I would like to plot X against Y in a trellis graph, wherein Y is the
conditioning variable. Y represents time, but instead of distinct
categories
(eg, 0-10,11-20,21-30,...) I would like to use overlapping categories
(0-10,0-20,0-30,...). Does anyone know how to do this, either via options
in R
It's just not that easy. A friend of mine at a large company whose name
rhymes with Maytheon spent over 3 months trying to get approval
from IT for a commercial database tool. IT departments tend to be
empire-building fools, and extraordinarily paranoid to boot.
At my parent company,
1. Please subscribe to the rcom mailing list,
and pose your question there.
RExcel questions should not be posed on r-help.
2. You have a trivial typo in your code,
you define inSet and then you use inSET.
When code does not run in RExcel, please test the same code in R.
You code will not run in
One of the benefits of the current global economic crisis is that
some organizations facing financial difficulties are considering options
that were not unmentionable only 6 months ago.
Spencer Graves
Carl Witthoft wrote:
It's just not that easy. A friend of mine at a large
Though there are certainly some *ir*rational reasons for IT
departments' behavior, there are also many rational reasons that IT
departments try to control the software running in their
organizations.
Condescendingly assuming that the IT department is run by idiots whose
decisions are ruled by
I use a Mac (10.4.11 Mac Os X).
In my .tcshrc I define an environmental variable MY.
Is it possible to find out its value from inside R? When one loads
R for Mac OS X Cocoa GUI written by:
Simon Urbanek
Stefano M. Iacus
are files like .tcshrc read by R?
Can I make the value of
Marc Schwartz marc_schwartz at comcast.net writes:
on 02/01/2009 10:45 AM David Winsemius wrote:
Let me admit at this point that I am not really sure that S4 classes is
the correct classification of such @-using extraction processes. The
documentation refers to formal methods and I
Hello,
It has been found that SEM analysis using polychoric correlations + maximum
likelihood estimator produces incorrect test statistics and standard errors
(e.g., Flora, D. B., Curran, P. J. (2004). An Empirical Evaluation of
Alternative Methods of Estimation for Confirmatory Factor Analysis
A minor footnote to Ben's response.
Why is it *supposed* to be harder to get bits out of objects like this and why
should you work through accessor functions? (If it works, why shouldn't I use
it? - why indeed.)
The answer I would give is that if you work through the official accessor
Dear all,
I have a very basic question:
how does the logLik function work for poisson models?
Example:
I simulate 20 observations from a Poisson distribution with mean 800.
y - rpois(20,800)
model - glm(y ~ 1, family=poisson())
logLik(model)
I would like to know what's the exact formula the
On Wed, 2009-01-28 at 21:21 +0100, Stephan Kolassa wrote:
Hi Adam,
first: I really don't know much about MANOVA, so I sadly can't help you
without learning about it an Pillai's V... which I would be glad to do,
but I really don't have the time right now. Sorry!
Second: you seem to be
I'm puzzled by the interaction.depth argument to the gbm() function, and
whether it specifies just the tree depth, or also (implicitly) the number of
distinct features used in splits.
From some version of the documentation I have:
interaction.depth The maximum depth of variable interactions.
can you use the system function?
system(echo $PATH)
On Feb 2, 11:10 am, David Epstein david.epst...@warwick.ac.uk wrote:
I use a Mac (10.4.11 Mac Os X).
In my .tcshrc I define an environmental variable MY.
Is it possible to find out its value from inside R? When one loads
R for Mac OS X
Dear List,
One persistent feedback I am getting to people who are newly introduced to R
( especially in this cost cutting recession) is -
1) The website looks a bit old.
While the current website does have a lot of hard work behind it, should n't
a world class statistics package have a better
Antonio,
Given the model you used, the log link means you are modeling
log(expected value of y)=intercept
If you had an independent variable e.g. x
model - glm(y ~ x, family=poisson())
you would be modeling
log(expected value of y)=intercept+x
John
John David Sorkin M.D., Ph.D.
Chief,
I was about to post a similar reply.
Stavros's reply was very eloquent and should be taken to heart!
Murray M Cooper, Ph.D.
Richland Statistics
9800 N 24th St
Richland, MI, USA 49083
Mail: richs...@earthlink.net
- Original Message -
From: Stavros Macrakis macra...@alum.mit.edu
To:
On Sun, 1 Feb 2009, David Epstein wrote:
I use a Mac (10.4.11 Mac Os X).
In my .tcshrc I define an environmental variable MY.
Is it possible to find out its value from inside R? When one loads
R for Mac OS X Cocoa GUI written by:
Simon Urbanek
Stefano M. Iacus
are files like
On Mon, 2 Feb 2009, antonio.gasparr...@lshtm.ac.uk wrote:
Dear all,
I have a very basic question:
how does the logLik function work for poisson models?
You mean its inner workings or just what is the computation?
The computation is just the vanilla loglikelihood:
sum( dpois( y,
A first step that would make the current Web page look much better
would be to anti-alias the demonstration graphic. The current graphic
makes R graphics seem (falsely!) to be very primitive. I'm afraid I
don't know how to do the anti-aliasing myself.
Replacing the fixed-width, typewriter-style
David Epstein wrote:
I use a Mac (10.4.11 Mac Os X).
In my .tcshrc I define an environmental variable MY.
Is it possible to find out its value from inside R? When one loads
R for Mac OS X Cocoa GUI written by:
Simon Urbanek
Stefano M. Iacus
are files like .tcshrc read by R?
Can
Hi,
you are probably right, though I must say that I like *spartanic and
efficient* homepages and I don't think that the example given by the
first mail is a good prototype for the R homepage. But, yes, occasional
face lifting may be adequate. Anti-aliasing is of course simple, but
that's
Dear R users,
I have drawn a kernel density curve and I would like to hatch a part of it:
where value is less than -2, P(Z -2). I only know how to hatch the entire area
under the curve.
Please, does any one know how to hatch part of it.
Thanks,
Â
Alphonse.
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