Displaying 20 results from an estimated 17960 matches for "center".
2004 Aug 06
0
toner cartridges
...ENERATOR" content="Mozilla/4.61 [en] (Win98; I) [Netscape]">
<title>fgfg</title>
</head>
<body>
<table BORDER COLS=1 WIDTH="100%" HEIGHT="15%" BGCOLOR="#408080" >
<tr>
<td BGCOLOR="#408080">
<center><b><font color="#FFFFFF"><font size=+3>VERTEX LASER AND </font></font></b>
<b><font color="#FFFFFF"><font size=+3>COPIER SUPPLIES</font></font></b></center>
</td>
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</table>...
2002 Jul 12
1
toner cartridges
...ENERATOR" content="Mozilla/4.61 [en] (Win98; I) [Netscape]">
<title>fgfg</title>
</head>
<body>
<table BORDER COLS=1 WIDTH="100%" HEIGHT="15%" BGCOLOR="#408080" >
<tr>
<td BGCOLOR="#408080">
<center><b><font color="#FFFFFF"><font size=+3>VERTEX LASER AND </font></font></b>
<b><font color="#FFFFFF"><font size=+3>COPIER SUPPLIES</font></font></b></center>
</td>
</tr>
</table>...
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. Here are
my lmer codes that I don't feel c...
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 m...
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 d...
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 <- .Fortran(R_kmns, as.double(x), as.integer(m),
+ a...
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...
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 for the choice between center=TRUE
and center=FALSE. If I select center=FALSE, I am able to interpret the
coefficients just...
2013 Apr 23
2
Needed: Beta Testers and Summer Camp Students
...e we
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pj
--
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Professor, Political Science Assoc. Director
1541 Lilac Lane, Room 504 Center for Research Methods
University of Kansas University of Kansas
http://pj.freefaculty.org http://quant.ku.edu
2016 Jul 21
1
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2010 Feb 22
3
scale(x, center=FALSE) (PR#14219)
...2009
month 12
day 14
svn rev 50720
language R
version.string R version 2.10.1 (2009-12-14)
scale returns incorrect values when center=FALSE and scale=TRUE.
When center=FALSE, scale=TRUE, the "scale" used is not the square root of sample
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...
2016 Jul 13
0
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2010 Mar 19
0
mboost: Interpreting coefficients from glmboost if center=TRUE
Sorry for the tardy reply but I just found your posting incidentally
today. To make long things short:
You are right about the centering. We forgot to correct the intercept if
center = TRUE. We lately found the problem ourself and fixed it in the
current version (mboost 2.0-3). However the problem only occurred if you
extracted the coefficients. As the intercept is rarely interpretable we
didn't have a closer look and thu...
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
centers...
Now a small dataset:
> data<-matrix(c(-1,0,2,2.5,7,9,0,3,0,6,1,4),6,2)
If I use rows 3 and 4 as cluster centers and a single iteration of kmeans I...
2006 Aug 09
0
Scriptaculous blind up effect not working from innerhtml in IE? Help please.
...ew Array();
</script>
<body>
<strong>Search Results</strong>
<table cellpadding="2" cellspacing="3" width="894">
<tbody><tr>
<td width = "55"></td>
<td width = "155"
align="center"><strong>Name</strong></td>
<td width = "155" align="center"><strong>User
ID</strong></td>
<td width = "155"
align="center"><strong>SSN</strong></td>
<td width = "155"...
2010 Aug 18
1
Plotting K-means clustering results on an MDS
...istance measure to my raw
data would have been inappropriate)
canto.MDS<-cmdscale(canto)
I then figured out what would be my optimum k-value by plotting the within
sums of squares for K1-K15
> wss <- (nrow(canto.MDS)-1)*sum(apply(canto.MDS,2,var))
> wss[2] <- sum(kmeans(canto.MDS,centers=2)$withinss)
> wss[3] <- sum(kmeans(canto.MDS,centers=3)$withinss)
> wss[4] <- sum(kmeans(canto.MDS,centers=4)$withinss)
> wss[5] <- sum(kmeans(canto.MDS,centers=5)$withinss)
> wss[6] <- sum(kmeans(canto.MDS,centers=6)$withinss)
> wss[7] <- sum(kmeans(canto.MDS,c...
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
...nd
action
<table align="LEFT" border="0" width="100%">
<tr>
<td><% @search %>
<% @wines.each do |wine| %>
</div></td>
</tr>
<tr>
<td>
<p align="center"></p>
<table align="CENTER" cellpadding="8">
<tr>
<td width="50%"><div align="left">Name:
<%=wine.name%></div></td>
</tr>
</...