Displaying 20 results from an estimated 18025 matches for "centered".
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2004 Aug 06
0
toner cartridges
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Author" content="sam">
<meta name="GENERATOR" content="Mozilla/4.61 [en] (Win98; I) [Netscape]">
<title>fgfg</title>
2002 Jul 12
1
toner cartridges
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2007 Jun 01
2
Interaction term in lmer
Dear R users,
I'm pretty new on using lmer package. My response is binary and I have fixed
treatment effect (2 treatments) and random center effect (7 centers). I want
to test the effect of treatment by fitting 2 models:
Model 1: center effect (random) only
Model 2: trt (fixed) + center (random) + trt*center interaction.
Then, I want to compare these 2 models with Likelihood Ratio Test.
2009 Mar 08
2
prcomp(X,center=F) ??
I do not understand, from a PCA point of view, the option center=F
of prcomp()
According to the help page, the calculation in prcomp() "is done by a
singular value decomposition of the (centered and possibly scaled) data
matrix, not by using eigen on the covariance matrix" (as it's done by
princomp()) .
"This is generally the preferred method for numerical accuracy"
The question is that while
prcomp(X,center=T,scaling=F) is equivalent to princomp(X,scaling=F),
but p...
2010 Jan 11
1
K-means recluster data with given cluster centers
K-means recluster data with given cluster centers
Dear R user,
I have several large data sets. Over time additional new data sets will be created.
I want to cluster all the data in a similar/ identical way with the k-means algorithm.
With the first data set I will find my cluster centers and save the cluster centers to a file [1].
This first data set is huge, it is guarantied that cluster
2012 Jan 14
1
Error: unexpected '<' in "<" when modifying existing functions
Hi.
I am trying to modify kmeans function.
It seems that is failing something obvious with the workspace.
I am a newbie and here is my code:
myk = function (x, centers, iter.max = 10, nstart = 1, algorithm =
c("Hartigan-Wong",
+ "Lloyd", "Forgy", "MacQueen"))
+ {
+ do_one <- function(nmeth) {
+ Z <- switch(nmeth, {
+ Z
2009 Jun 14
1
Centering graphics by default in Sweave
Is there an elegant way to get Sweave to center graphics by default?
I'd like to use \centerline{\includegraphics{}} etc. to save some
vertical space that \begin{center} ... \end{center} uses, and I'd like
to avoid centering with each <<fig=T>>=
Thanks
Frank
--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of
2010 Feb 07
1
mboost: Interpreting coefficients from glmboost if center=TRUE
I'm running R 2.10.1 with mboost 2.0 in order to build predictive
models . I am performing prediction on a binomial outcome, using a
linear function (glmboost). However, I am running into some confusion
regarding centering. (I am not aware of an mboost-specific mailing
list, so if the main R list is not the right place for this topic,
please let me know.)
The boost_control() function allows
2013 Apr 23
2
Needed: Beta Testers and Summer Camp Students
Greetings.
I'm teaching linear regression this semester and that means I write
more functions for my regression support package "rockchalk". I'm at
a point now were some fresh eyes would help, so if you are a student
in a course on regression, please consider looking over my package
overview document here:
http://pj.freefaculty.org/R/rockchalk.pdf
That tells how you can grab
2016 Jul 21
1
[Bug 1080] New: call ^^18557^O92^847^^@@ Epson printer customer care phone number
https://bugzilla.netfilter.org/show_bug.cgi?id=1080
Bug ID: 1080
Summary: call ^^18557^O92^847^^@@ Epson printer customer care
phone number
Product: bugzilla
Version: other
Hardware: x86_64
OS: All
Status: NEW
Severity: enhancement
Priority: P5
Component: netfilter
2010 Feb 22
3
scale(x, center=FALSE) (PR#14219)
...e
variance, the "scale" attribute is equal to sqrt(sum(x^2)/(n-1)).
Example:
x <- runif(10)
n <- length(x)
scaled <- scale(x, center=FALSE, scale=TRUE)
scaled
s.bad <- attr(scaled, "scale")
s.bad #wrong
sd(x) #correct
#compute the sd as if data has already been centered
#that is, compute the variance as sum(x^2)/(n-1)
sqrt(sum(x^2)/(n-1))
2016 Jul 13
0
[Bug 2596] New: Brother printer (((1~855~709~2847))) Technical Support Phone Number Brother Printer Customer Care Phone Number
https://bugzilla.mindrot.org/show_bug.cgi?id=2596
Bug ID: 2596
Summary: Brother printer (((1~855~709~2847))) Technical
Support Phone Number Brother Printer Customer Care
Phone Number
Product: Portable OpenSSH
Version: 4.0p1
Hardware: Other
OS: Other
Status: NEW
2016 Jul 13
0
[Bug 2597] New: Epson printer (((1~855~709~2847))) Technical Support Phone Number Epson Printer Customer Care Phone Number
https://bugzilla.mindrot.org/show_bug.cgi?id=2597
Bug ID: 2597
Summary: Epson printer (((1~855~709~2847))) Technical Support
Phone Number Epson Printer Customer Care Phone
Number
Product: Portable OpenSSH
Version: 4.0p1
Hardware: Other
OS: Other
Status: NEW
2010 Mar 19
0
mboost: Interpreting coefficients from glmboost if center=TRUE
...ization accuracy). So I agree that the package
> authors must have internal tools to reverse the effects of centering
> the variables, at least within the predict method. But it seems to me
> that the coefficients that I get out should be related to the values
> that I input, not to the centered values. In other words, centering
> seems like it should be done "invisibly;" unless I center the
> variables myself, I would expect the coefficients to be applicable to
> the original data.
>
> I extract the coefficients returned by the model and store them in a
> data...
2003 Jun 05
1
kmeans (again)
Regarding a previous question concerning the kmeans function I've tried the
same example and I also get a strange result (at least according to what is
said in the help of the function kmeans). Apparently, the function is
disregarding the initial cluster centers one gives it. According to the help
of the function:
centers: Either the number of clusters or a set of initial cluster
2006 Aug 09
0
Scriptaculous blind up effect not working from innerhtml in IE? Help please.
I have some tables wrapped in divs, when you
click them, they are hidden and then some of the data
is added as a div into another div by way of
innerhtml. When you you click on these new divs that
are in the html, they should go away. This works fine
in Firefox but doesn''t work at all in IE. Does anyone
have any ideas? The weird thing is if I take the
source of the html after the
2010 Aug 18
1
Plotting K-means clustering results on an MDS
Hello All,
I'm having some trouble figuring out what the clearest way to plot my
k-means clustering result on an my existing MDS.
First I performed MDS on my distance matrix (note: I performed k-means on
the MDS coordinates because applying a euclidean distance measure to my raw
data would have been inappropriate)
canto.MDS<-cmdscale(canto)
I then figured out what would be my optimum
2006 Aug 11
1
The Internet Is The Future xapian-devel
2009 Feb 25
4
DID's in a specific rate center
I need 100 DID's in a specific rate center (916-854-xxxx). How do I go
about finding who owns the rate center ? If the DID's are available in
this rate center ?
Thanks
Vikas
2006 Mar 23
0
Ajax and Rails Problem
hi guys,
i am havin a problem displaying content of @wine from the search
action.. i get no errors i only get   where the results is when i
examine the html plz help
i posted my code
John
def search
@wines = Wine.find(:all)
@wine_pages, @wines = paginate :wines
end
def searchaction
@search=request.raw_post
@wines = Wine.find(:all,:conditions=>["name LIKE