Fiona Sammut um.edu.mt> writes:
> Whilst reading a book on robust statistics, in particular a section on
> multivariate outlier detection, I came across the functions outmve,
> outmgv and outpro. I tried the help.search command to try and find
> documentation on these 3 commands in R. I also
Hi,
Apologies for the long mail. I have a data.frame with columns of
price/mcap data for a portfolio of stocks, and the date. To get the
total value of the portfolio on a daily basis, I calculate rowSums of
the data.frame.
> set.seed(1)
> ab <- matrix(round(runif(100)*100),nrow=20,ncol=5)
Prof Harrell
Thanks for the hint!
I am using Hmisc 3.3-2, on R version 2.5.0 with windows XP.
I saw the argument "prmsd = T" in the help for summary.formula(), and
couldn't understand how to make it work, but just now realised that it
should be applied to the latex() function, and not to summa
Keith Wong wrote:
> Dear all,
>
> The incredibly useful Hmisc package provides a method to generate
> summary tables that can be typeset in latex. The Alzola and Harrell book
> "An introduction to S and the Hmisc and Design libraries" provides an
> example that generates mean and quartiles fo
Dear all,
The incredibly useful Hmisc package provides a method to generate
summary tables that can be typeset in latex. The Alzola and Harrell book
"An introduction to S and the Hmisc and Design libraries" provides an
example that generates mean and quartiles for continuous variables, and
n
MANASI VYDYANATH wrote:
> Hello -
>
> I apologize if this question is simple/obvious, but I couldn't find a
> satisfactory answer online, and I am not very accustomed to working
> with R (Matlab is my poison. :-)). Any help would be greatly
> appreciated.
>
> I have a model with a three-lev
Hello -
I apologize if this question is simple/obvious, but I couldn't find a
satisfactory answer online, and I am not very accustomed to working
with R (Matlab is my poison. :-)). Any help would be greatly
appreciated.
I have a model with a three-level factor and a continuous covariate.
Soare Marcian-Alin asks
> Sent: Monday, 14 May 2007 7:34 AM
> To: R-help@stat.math.ethz.ch
> Subject: [R] factanal
>
> Hello Guys,
... and the gals, I presume.
> I have problem with the factanal function, I dont understand why it
tells me
> everytime "2 factors is too many for 3 variables"
It
Thanks to both of you for replying. Actually, I first wrote Mark, but
he had a vacation mail message saying he'll be away until the 22nd, and
I wanted my students to be able to use this debugging tool before then.
R-2.5.0-patched did indeed solve the problem. Thanks.
By the way, I have (yet an
If you know its of the form testdata[3] then this is sufficient
x <- c("testdata[3]", "testdata[-4]", "testdata[-4g]")
gsub(".*\\[|\\]", "", x) # c("3", "-4", "-4g")
Here is a somewhat more general solution:
library(gsubfn)
x <- c("a[b]c[d]d", "[a]b")
strapply(x, "\\[([^]]*)\\]", back
Hi everyone,
I import data from access, and make an object (c) store the data,
when I want to use it in function mnp, it gives the below error:
Error in dimnames(x) <- dn : length of 'dimnames' [2] not equal to array
extent
> x<-odbcConnectAccess("db2.mdb")
> c<-sqlFetch(x,"Sheet2")
> odbcClose(
here is one way using 'sub':
> x <- c("testdata[3]", "testdata[-4]", "testdata[-4g]")
> sub(".*\\[(.*)\\].*", "\\1", x, perl=TRUE)
[1] "3" "-4" "-4g"
> x.func <- function(x){ sub(".*\\[(.*)\\].*", "\\1", x, perl=TRUE)}
> x.func(x)
[1] "3" "-4" "-4g"
>
On 5/13/07, new ruser <[EMAIL PROTECTE
Hello Guys,
I have problem with the factanal function, I dont understand why it tells me
everytime "2 factors is too many for 3 variables"
data set:
http://www.statistik.tuwien.ac.at/public/filz/students/multi/ss07/world2.R
code:
library(robustbase)
source("world2.R")
str(world) # structure
su
Hi, quick question from a social scientist new to R:
how do I add labels/row names to the nodes in
coordProj / plot.Mclust plots? Apologies if this is a
silly question... Thanks.
-- Bobby
___
I have a text string that contains text within two brackets.
e.g. "testdata[3]" "testdata[-4]", "testdata[-4g]",
I wish to "extract" the string enclosed in brackets?
What is a good way to do this?
e.g.
fun(testdata[3]) = '3'
fun(testdata[-4g]) = '-4g'
-
Dear all,
Whilst reading a book on robust statistics, in particular a section on
multivariate outlier detection, I came across the functions outmve,
outmgv and outpro. I tried the help.search command to try and find
documentation on these 3 commands in R. I also searched online, but no
to a
Hi,
A quick question from a social scientist new to R -
how do I get coordProj / plot.Mclust to label the
nodes by row names? Using "identify" only gives me the
row numbers... Thanks.
-- Bobby
__
R-help@stat.math.ethz.ch mailing list
htt
Greetings!
I am using prop.test to compare 4 proportions to find out whether they
are equal. According to the help function you can not have confidence
intervals if you compare more than 2 proportions.
I need to find an effect size or confidence interval for these proportions.
Any suggestions?
You are confusing binary packages available for a version of R for
Windows, and source packages. But 'stats4' is not on CRAN.
On Sun, 13 May 2007, Chris Evans wrote:
> I'm working on Windoze XP and have for some time installed R in D:\R and
> upgraded my packages after installing the new versio
Marco B wrote:
> Dear R Masters,
>
> I'm an anesthesiology resident trying to make his way through basic
> statistics. Recently I have been confronted with longitudinal data in
> a treatment vs. control analysis. My dataframe is in the form of:
>
> subj | group | baseline | time | outcome (long)
>
Using movedir.bat or copydir.bat from batchfiles:
http://code.google.com/p/batchfiles/
you can move or copy your old packages over to the new R tree.
It won't overwrite any so you can do that even after you have
installed some by some other method such as that you describe
below. Once you have m
I'm working on Windoze XP and have for some time installed R in D:\R and
upgraded my packages after installing the new version of R with a bit
of code I think I got from the list:
ip <- installed.packages(lib.loc = "d:\\R\\R-2.4.1\\library")
ip <- ip[ip[,1]!="base" ,1]
install.packages(ip)
This t
Dear Marco,
You might also take a look at ?Anova (or ?Manova) in the car package; the
last examples are for a repeated-measures ANOVA using both MANOVA and
univariate approaches, the latter with GG and HF corrections.
I hope this helps,
John
John Fox, Professor
Dear R Masters,
I'm an anesthesiology resident trying to make his way through basic
statistics. Recently I have been confronted with longitudinal data in
a treatment vs. control analysis. My dataframe is in the form of:
subj | group | baseline | time | outcome (long)
or
subj | group | baseline |
On 5/13/07, Prof Brian Ripley <[EMAIL PROTECTED]> wrote:
> On Sun, 13 May 2007, Sarah Goslee wrote:
>
> > Sure, R can do anything. The first trick, though, is to learn
> > how to write clear-enough questions to the mailing list
> > that you get helpful answers back. A worked example of
> > what you
The PCA of two variables out of three is unrelated to the PCA of all
three, so your example code does not do what you describe.
If you want to plot two of the components of a full PCA, see
?biplot.princomp: and note that it says this is not a true biplot for
other than the first two components.
On Sun, 13 May 2007, Sarah Goslee wrote:
> Sure, R can do anything. The first trick, though, is to learn
> how to write clear-enough questions to the mailing list
> that you get helpful answers back. A worked example of
> what you want would be very useful, since I have no idea
> what the index is
Sure, R can do anything. The first trick, though, is to learn
how to write clear-enough questions to the mailing list
that you get helpful answers back. A worked example of
what you want would be very useful, since I have no idea
what the index is, or what field2 is, or what kind of graph
you want.
On May 13, 2007, at 7:48 AM, Mihai Bisca wrote:
> Hello all,
>
> I'm new to R and I cannot find a simple answer to a simple question.
> If I have a character vector like v <- c('1/50,'1/2','1/8'...) how can
> I convert it to a numeric vector like vn <- c(0.02,0.5,0.125...). I
> tried as.numeric i
Hi,
If you check the help for princomp, you'll see that it returns all
sorts of information in the form of a list. The most convenient
way is to save your analysis
xresults <- princomp(x, cor=TRUE)
then you can look at the scores, plot them yourself, anything
else you want
xscores <- xresults$scor
Hello all,
I'm new to R and I cannot find a simple answer to a simple question.
If I have a character vector like v <- c('1/50,'1/2','1/8'...) how can
I convert it to a numeric vector like vn <- c(0.02,0.5,0.125...). I
tried as.numeric in various ways and failed miserably. Currently I use
a functi
My task is to create an object class for triangles. I have made a function:
triangle<- function(a,b,gamma) {
c <- sqrt (a^2+b^2-2*a*b*cos(gamma/180*pi))
beta <- (acos((a^2+c^2-b^2)/(2*a*c)))/pi*180
alfa <- 180-(beta+gamma)
T <- (a*b*sin(gamma/180*pi))/2
K <- a+b+c
cat ('side of triangle: ',a,b,c,
These links from the US copyright office seem relevant:
"Copyright Registration for Automated Databases"
http://www.copyright.gov/circs/circ65.html
and
"Furthermore, copyright protection does not extend to works consisting
entirely of information that is common property containing no original
au
Dear Brian, Peter, Spencer,
Thanks for your comments, which have cleared things up a little for
me. The thing I find most confusing about copyright is that it is
emergent, not atomic - ie. if you split a copyrighted work into small
enough pieces (eg. letters, pixels) those pieces are no longer
co
A relevant book on this important (and evolving) topic is
Math You Can't Use: Patents, Copyright, and Software
by Ben Klemens (2006)
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