Hello John.After a simple search in google, I came up with this:
http://www.ats.ucla.edu/stat/R/seminars/Repeated_Measures/repeated_measures.htm
Enjoy,
Tal.
On Mon, Oct 27, 2008 at 6:15 PM, JohnLi <[EMAIL PROTECTED]> wrote:
> Hi All,
>
> I am new comer here and for Statistics R. I want to kn
Hi, Greg,
Yes, that helps immensely!
Thanks,
--sundar
Greg Snow said the following on 10/27/2008 7:14 PM:
Here is one example of using ttkcombobox, hopefully it helps:
library(tcltk)
have.ttk <- function () { # from Prof. Ripley
as.character(tcl("info", "tclversion")) >= "8.5"
}
testf
Hi all,
I am a new comer for Statistics R. I am using R for one way repeated
measure anova, for example, on the following data consisting of three
groups.
I appreciate your help if anybody help me show the procedure in R.
John
c2 c3 c4
85.83 75.86 84.19
85.91 73.18 85.9
86.12
Hi All,
I would like to find out which package in R that can handle nadaraya-watson
and local linear estimators with random design or unequally spaced x's
variables.
Appreciate the help.
Thank you.
--
View this message in context:
http://www.nabble.com/Kernel-regression-with-random-design-tp
for (i in 2:4){
input <- read.delim(paste('vegetation_', i, '.txt', sep=''))
process the file
}
On Mon, Oct 27, 2008 at 6:53 PM, Alessandro
<[EMAIL PROTECTED]> wrote:
> Hi All,
>
>
>
> sorry for the question. I have a problem to understand how I could read
> several txt file in R
Dear List
I am trying to fit a simutaneous equation logit model. i.e., the
response variables of the structured equations are binomial, I am not
sure if systemfit can do this job. A google search doesn't yield too
much helpful information. Your knowledge on any other packages or
codes are appreciat
Creating your own plot from scratch will probably not be that hard. You can
plot using type='n' to set up the plot. Then the symbols function will plot
squares or rectangles with the length of the sides specified by you. The
segments function can then add the lines.
If you want a shape that
Here is one example of using ttkcombobox, hopefully it helps:
library(tcltk)
have.ttk <- function () { # from Prof. Ripley
as.character(tcl("info", "tclversion")) >= "8.5"
}
testfunc <- function() {
tt <- tktoplevel()
if( !have.ttk() ) stop( "Need version 8.5 or greater of t
[EMAIL PROTECTED] wrote:
Katrin,
R is completely free - no License. We've built a supported user friendly
version: R-PLUS
This statement is not correct. R is licensed under the GPL. This is a
"free software" license, but it is not the same as having no license.
There are oblig
I am reasonably sure that the log link with a zero intercept
duplicates your efforts with nls().
Take a look at this:
> txt <- "X Y
+ 2 2.927064
+ 5 14.6582
+ 4 8.567706
+ 3 5.007817
+ 1 1.710867
+ 6 25.07823
+ 4 8.567706
+ 7
As I tried to draw random sample from Hüsler-Reiss density with the following
code,
library(evd)
margins <- cbind(0, 1, seq(-0.5,0.5,0.1))
x <- rbvevd(101, dep = 1.7, model = "hr", mar1 = margins)
[,1] [,2]
[1,] -0.56662298 0.8448505
[2,] 0.55824918 1.0217279
[3,]
Sorry. I forgot to say I am on ubuntu intrepid 8.10 RC, in case that
matters.
Kjetil
On Mon, Oct 27, 2008 at 8:28 PM, Kjetil Halvorsen <
[EMAIL PROTECTED]> wrote:
> Hola!
>
> I am trying to compile gnomeGUI with R 2.8.0, using
> inside R (started with sudo R)
> >install.packages("gnomeGUI", dep=
Hola!
I am trying to compile gnomeGUI with R 2.8.0, using
inside R (started with sudo R)
>install.packages("gnomeGUI", dep=TRUE)
this fails with:
checking for string.h... (cached) yes
checking for strings.h... (cached) yes
checking for gnome-config... no
checking for gnomeConf.sh file in /usr/lo
I'm trying to make a plot very similar to a forest plot, with points of
different sizes with means, standard deviations, and a reference line.
However, instead of using the standard deviations to determine the size of
the data points, I would like to choose my own weightings. It seems like it
sh
Katrin,
R is completely free - no License. We've built a supported user friendly
version: R-PLUS
You can freely evaluate R-PLUS - the current free trial has no expiration
date.
At a click, import data from different formats, use Excel-like
spreadsheet for manipulating y
Dear Forum,
I have a problem with the installation of SciViews / Komodo under OSX.
After installing, SciViews and Komodo I get the following error message in
R:
"29:37: execution error: File Komodo wasn’t found. (-43)"
I also set up the symbolic link, that is required. The connection between
K
Freiberger, Katrin wrote:
Dear All,
I learned about R during my studies at Cologne University of Applied Science.
Now I work at Allianz Dresdner Bauspar AG and I would like to install R here
too. Is there any license issues that need to be taken in consideration, any
fees to pay by the compan
Hi All,
sorry for the question. I have a problem to understand how I could read
several txt file in R with read.delim
file: vegetation_2.txt, vegetation_3.txt, vegetation_4.txt, etc etc
I tried with:
for (i in 2:4)
{file=paste("vegetation_",i,sep="") <- read.delim
(file=paste("vege
Felipe Carrillo wrote:
I've responded to this one in the original thread.
Tom
__
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 co
Felipe Carrillo wrote:
Are you still can't get the data into R? I sent you this -mail last week, did
you read it?
Yes I did read it, and I have installed the package and looked at the
documentation. What I (after an admittently superficial inspection due
to limited available time this weeke
Greg Snow wrote:
Another alternative (since you asked) is the RExcel project
(http://rcom.univie.ac.at). I don't know if it will work better for your
projects or not, but it may be worth a look. The basic idea is that it uses
Excel as a front end and R as the background computational engine
Greg Snow wrote:
Any timing is of course your decision, but my observation (being one of my
company's test cases for updating office) is that transitioning from MSWord
2003 to OpenOffice Writer will be less work/stress than transitioning from
MSWord 2003 to MSWord 2007.
That agrees with my o
Rgraphviz is a Bioconductor package so help can be found on the
Bioconductor mailing list. Actually, this post, from Saturday, might be
what you are looking for...
https://stat.ethz.ch/pipermail/bioconductor/2008-October/024747.html
Best,
Martin
ram basnet wrote:
Dear R users,
I am not so
http://www.bioconductor.org/packages/release/bioc/html/Rgraphviz.html
try going here downloading the binary and then installing it from your desktop
look at
?install.packages
hope this helps
On Mon, Oct 27, 2008 at 5:21 PM, ram basnet <[EMAIL PROTECTED]> wrote:
> Dear R users,
>
> I am not so use
Dear R users,
I am not so used to this R software. I have to use the package " Rgraphviz" but
found some problem in the installation process. I download this package and
store in R library but i am not getting this package in R installation list.
I made review in google search net and use the
Hi again :-) I finally was able to fix the program, thank you all very
much for your help :-)
Now I have a problem and I don´t know if it is possible to solve it with
R, I have a data set, and
because it is data from salaries I am suspecting it comes from a Pareto
distribution, my questions
a
Hi, all,
(sessionInfo at the end)
I've been struggling with the tcltk package and can't seem to get the
ttkcombobox to work. Here's an example:
library(tcltk)
p <- tktoplevel()
l <- tclVar()
## I don't know if I'm even calling it correctly
cb <- ttkcombobox(p, values = letters[1:4], textvaria
Katrin,
R is free and you get great support from this mailling list. Check out
R-PLUS by XLSolutions Corporation.
The free R-PLUS trial has no expiration date.
At a click, import data from different formats, use Excel-like
spreadsheet for manipulating your data, create pub
have you read in the data? Have you made it a time series? Did you call it z?
?fft
?spectrum
On Mon, Oct 27, 2008 at 2:01 PM, Rthoughts
<[EMAIL PROTECTED]> wrote:
>
> Dear all,
>
> Before I can get into serious Fourier analysis of Radon time-series I am
> practising with 24hour and 24.8hour sin
Dear all,
Before I can get into serious Fourier analysis of Radon time-series I am
practising with 24hour and 24.8hour sinusoids to assist with my
interpretation of signals ittributed to tidal input to Radon time series.
I am stuck. I have tried researching this to no avail. I am awating a book
Hi,
I'm very much enjoying using the ape package to produce phylogenetic
trees with colored branches (using edge.color). Is it also possible to
specify that some branches should be drawn as dotted lines? That would
be really useful.
I've tried messing around with edge.width, but that does
> the example below does not work. (i know it's not supposed, but it makes
it
> clear what i'm trying to achieve)
>
> par(mfrow=c(2,1))
> xyplot(y~x2|x1,data=dataframe1,pch=20)
> xyplot(y~x2|x1,data=dataframe2,pch=20)
>
> i know i could probably merge the two datasets and do something like
> xyp
Thank you all, I've got everything I need now.
On Mon, Oct 27, 2008 at 2:29 PM, <[EMAIL PROTECTED]> wrote:
> > the example below does not work. (i know it's not supposed, but it makes
> it
> > clear what i'm trying to achieve)
> >
> > par(mfrow=c(2,1))
> > xyplot(y~x2|x1,data=dataframe1,pch=20)
>
Hi,
You could use the grid package to place treillis objects in any custom
layout you want, for example
(inspired by Paul Murrell's R graphics book < http://www.stat.auckland.ac.nz/~paul/RGraphics/rgraphics.html
> fig 5.22),
library(grid)
library(lattice)
df <- data.frame(x=rnorm(100),
On Mon, Oct 27, 2008 at 8:16 PM, Liviu Andronic <[EMAIL PROTECTED]> wrote:
> On Mon, Oct 27, 2008 at 7:32 PM, Greg Snow <[EMAIL PROTECTED]> wrote:
>> Another alternative (since you asked) is the RExcel project
>> (http://rcom.univie.ac.at).
>>
> I didn't perform much search, but is there anything
On 10/27/08, erwann rogard <[EMAIL PROTECTED]> wrote:
> hello,
>
> the example below does not work. (i know it's not supposed, but it makes it
> clear what i'm trying to achieve)
>
> par(mfrow=c(2,1))
> xyplot(y~x2|x1,data=dataframe1,pch=20)
> xyplot(y~x2|x1,data=dataframe2,pch=20)
>
> i know
As others have pointed out, you can download and use R for commercial
purposes for free. This is allowed under the terms of the GPL under
which R is licensed.
If your company requires software to be professionally supported, you
might want to consider purchasing a version of R that includes a
sup
Hello,
On Mon, Oct 27, 2008 at 7:32 PM, Greg Snow <[EMAIL PROTECTED]> wrote:
> Another alternative (since you asked) is the RExcel project
> (http://rcom.univie.ac.at).
>
I didn't perform much search, but is there anything similar for
OpenOffice or Gnumeric? Basically, is there a cross-platform
R
hello,
the example below does not work. (i know it's not supposed, but it makes it
clear what i'm trying to achieve)
par(mfrow=c(2,1))
xyplot(y~x2|x1,data=dataframe1,pch=20)
xyplot(y~x2|x1,data=dataframe2,pch=20)
i know i could probably merge the two datasets and do something like
xyplot(y~x2|x1
on 10/27/2008 11:26 AM Duncan Murdoch wrote:
> On 10/27/2008 9:04 AM, Freiberger, Katrin wrote:
>> Dear All,
>>
>> I learned about R during my studies at Cologne University of Applied
>> Science. Now I work at Allianz Dresdner Bauspar AG and I would like to
>> install R here too. Is there any licen
Does anybody have a recommended code/method for setting start-up
location and window size of the console when working in SDI mode? I
use tinn-r, which is already splitting my desktop in half for tinn-r and
the console. I'd like to see the console in the bottom, right corner to
allow for a graphi
Many thanks for your suggestions...
I am still checking which one is the most useful for my simulations.
Concerning using logs, this might be very helpful, but I am not sure if
I can use the following:
A+B = A*(1 + B/A)
= exp(log(A) + log(1 + B/A))
because unfortunately B can be negative.
H
On 10/27/2008 1:19 PM, Barry Rowlingson wrote:
2008/10/27 Freiberger, Katrin <[EMAIL PROTECTED]>:
Dear All,
I learned about R during my studies at Cologne University of Applied Science.
Now I work at Allianz Dresdner Bauspar AG and I would like to install R here
too. Is there any license issu
Another alternative (since you asked) is the RExcel project
(http://rcom.univie.ac.at). I don't know if it will work better for your
projects or not, but it may be worth a look. The basic idea is that it uses
Excel as a front end and R as the background computational engine as an Excel
plugin
Duncan Murdoch wrote:
On 10/27/2008 9:04 AM, Freiberger, Katrin wrote:
Dear All,
I learned about R during my studies at Cologne University of Applied
Science. Now I work at Allianz Dresdner Bauspar AG and I would like to
install R here too. Is there any license issues that need to be taken
i
2008/10/27 Freiberger, Katrin <[EMAIL PROTECTED]>:
> Dear All,
>
> I learned about R during my studies at Cologne University of Applied Science.
> Now I work at Allianz Dresdner Bauspar AG and I would like to install R here
> too. Is there any license issues that need to be taken in consideration
Hello,
Does anyone know in general what causes the following error:
Error: C stack usage is too close to the limit
I rewrote some R code that worked fine to be more streamlined, and now I
get this error. I don't really know where to start to fix the problem.
Thanks,
John
__
Any timing is of course your decision, but my observation (being one of my
company's test cases for updating office) is that transitioning from MSWord
2003 to OpenOffice Writer will be less work/stress than transitioning from
MSWord 2003 to MSWord 2007.
--
Gregory (Greg) L. Snow Ph.D.
Statistic
The odfWeave package does sweave using OpenOffice files instead of LaTeX files.
The .odt files are XML based I believe. If you still want to expand to
docbook, looking at the code of odfWeave should at least get you started.
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain
Here are a few ideas. The symbols function has a few different symbols that it
can add to a plot (circles as you mentioned), one of my favorites is the
thermometers, like a barplot for each county, but with a surrounding rectangle
for reference so they are easier to compare while not being line
Does anyone know the maximum dimension that svm can deal with in R?
I am working on support vector regression.
My data set is 1721*41030
1721 samples
41030 predictors
Some information about my machine:
cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
On 10/27/2008 9:04 AM, Freiberger, Katrin wrote:
Dear All,
I learned about R during my studies at Cologne University of Applied Science.
Now I work at Allianz Dresdner Bauspar AG and I would like to install R here
too. Is there any license issues that need to be taken in consideration, any
fe
Hi Prof. Williams,
thanks for your suggestion. The updated code is below.
It turns out it was a matter of displaying the second column in
yval to get the number of N and subtracting it from the n column in the
frame to get the number of Y remaining in a binary example.
onc
Hi Ken,
Your command works fine and your comment was right as well, here is the
final command (inspired from yours) directly on DATA1.x and DATA1.y
foo3<-list()
for (i in 1:1000) foo3[[i]]<-nls(
Qe~LgmFla(a,b,Ce),
data=list(Ce=DATA1.x[,i],Qe=DATA1.y[,i]),
start=c(a=0.5,b=0.1)
)
Thanks
Here is an example of adding the distribution curve to a histogram:
x <- rchisq(100, 5)
hist(x, prob=TRUE)
curve( dchisq(x, df=5), col='green', add=TRUE)
curve( dchisq(x, df=10), col='red', add=TRUE )
It may be easier to compare the therotical curve to a density estimate rather
than the histogra
Hi All,
I am new comer here and for Statistics R. I want to know how to use R
to calculate one way repeated measure ANOVA, for example, on three
groups of data.
I appreciate if someone can help me solve this problem.
John
__
R-help@r-project.or
Hi,
> To realize the data frame I've tried this
>
> for (i in 1:1000)
> {
> foo<-list(c(foo[],data.frame( Ce=DATA1.x[,i],Qe=DATA1.y[,i])))
> }
I think the following would do it:
foo <- list()
for(i in 1:1000) foo[[i]] <- data.frame(Ce = DATA1.x[,i], Qe=DATA1.y[,i])
But then again, do you re
Dear Richard, Martin, Dimitris and Domenico
thank you very much for your help.
I must say that the fastest procedure appears to be the one suggested by
Richard
This runs pretty quickly:
unSpells <- nrow(Atr) - apply(Atr,2,function(x) max(which(x==1)))
#c(4,0,7,0)
If I may abuse of your kin
Hi all,
I need to realize nonlinear regression on a thousand data sets. I guess the
lapply function would help me on that thus I'd like to create a list of data
frames, each data frame containing the data as follows:
CeQe
1 1.849147 0.1958672
2 10.054250 0.5771036
3 18.077246
[EMAIL PROTECTED]
Hello
First I want to implement exponential regression in R, with out constant for
the following formula.
Y = exp(a*X)
‘a’ is coefficient I wanted to determine. That I could do also in SPSS but my
question is rather to estimate the ‘standard error of Ŷi at each Xi. This
Type 'na.omit' and see where it leads. In this case you see it is an
object class and there are several methods, all of which are not
visible, so you use 'getAnywhere' to see them:
> na.omit
function (object, ...)
UseMethod("na.omit")
> methods(na.omit)
[1] na.omit.data.frame* na.omit.default*
First of all, let me apologize for the 200 files that would result
from running my "minimal example". I've just realised this on my
Desktop; it seems i overlooked the arguments passed to sapply().
Thank you for your reply Duncan, I realize now my approach was quite
silly. It is indeed much
Dear All,
I learned about R during my studies at Cologne University of Applied Science.
Now I work at Allianz Dresdner Bauspar AG and I would like to install R here
too. Is there any license issues that need to be taken in consideration, any
fees to pay by the company? I know there are answers
Hi R helpers,
I'd like to see source code for some of built-in R functions... for
example, I would like too see how "na.omit" was implemented?
Thanks?
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the
Hi Mario --
This function
f <- function(m) {
## next 2 lines due to Bill Dunlap
## http://tolstoy.newcastle.edu.au/R/e4/devel/08/04/1206.html
csum <- cumsum(!m)
crun <- csum - cummax(m * csum)
matrix(ifelse(crun > 0, (crun-1) %% nrow(m) + 1, 0),
nrow=nrow(m))
}
ret
> >> It works, but the for (i in ...) loop slows down the simulation a
lot.
> >>
> >> Any suggestion on how to avoid this loop? (or in general, to speed up
> >> this part of the simulation)
> Actually, I have not specified the following: i want to consider only
> the "most recent" sequence of
On Mon, Oct 27, 2008 at 2:24 PM, Wade Wall <[EMAIL PROTECTED]> wrote:
> Hi Gabor,
>
> Thanks for the code, it's what I was looking for. The route I was
> thinking about was to use, based on your code, the names from
> my.data.frames as a pointer to the actually dataframes.
>
> I was envisioning so
Hi Gabor,
Thanks for the code, it's what I was looking for. The route I was
thinking about was to use, based on your code, the names from
my.data.frames as a pointer to the actually dataframes.
I was envisioning something like
a <- data.frame(1:10)
b <- data.frame(10:1)
c <- data.frame(letters[
This is really NOT an R-help question. You just need to read the code
more carefully
and everything will be revealed there. This isn't like the Pisan
Cantos.
url:www.econ.uiuc.edu/~rogerRoger Koenker
email[EMAIL PROTECTED]Department of Economics
vox: 21
John,
If you really do like the R-help list, you may want to see if your email
program has folders and auto-rules. Since all R-help emails have [R] in
the subject line, you can put all those email in a separate folder so
everything doesn't get mixed up. That is what I do.
HTH, Roger
-Origi
Duncan Murdoch stats.uwo.ca> writes:
>
> Matthieu Stigler wrote:
> > Hello
> >
> > Im trying to install package rgl in a freshly installed Ubuntu 8.04
> > system. I have a problem (actually is has been reported three times on
> > the R-list but the answers were too complicated for me) when
> > i
I have problems to read (file read error) Minitab Portable Files
(Minitab13) with read.mtp(foreign) for R versions posterior to R.6.0.
Thanks
P. Main
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do rea
baptiste auguie wrote:
Dear all,
I wrote a wrapper to a FORTRAN program using R. The main program uses
a text file (~200 lines) as an input describing the simulation to be
run. I typically generate the file once with the right parameters
using a combination of file(), paste(), cat(). This
On Sun, Oct 26, 2008 at 4:01 PM, Matthias Kohl <[EMAIL PROTECTED]> wrote:
> Hi Rainer,
>
> we have not implemented the Mallow's distance so far. Out package distrEx
> includes implementations of the Hellinger, the Kolmogorov, the total
> variation and the Cramer von Mises distance. Combined with ou
Matthieu Stigler wrote:
Hello
Im trying to install package rgl in a freshly installed Ubuntu 8.04
system. I have a problem (actually is has been reported three times on
the R-list but the answers were too complicated for me) when
installing:
configure: using libpng dynamic linkage
checking for
Dear all,
I wrote a wrapper to a FORTRAN program using R. The main program uses
a text file (~200 lines) as an input describing the simulation to be
run. I typically generate the file once with the right parameters
using a combination of file(), paste(), cat(). This is fine, and it
works
then try the following:
Atr <- cbind(rep(1:0, each = 4), 1, c(1, rep(0, 7)), 1)
Atr <- rbind(c(0, 1, 0, 1), Atr)
apply(Atr, 2, function (x) {
rr <- rle(x)
if (tail(rr$values, 1) == 0) tail(rr$length, 1) else 0
})
I hope this what you're looking for.
Best,
Dimitris
Mario Lavezzi wrote
Hi Dimitris, thank you very much.
Actually, I have not specified the following: i want to consider only
the "most recent" sequence of zeros, that is the last part of the time
series.
That is, If I have:
[,1] [,2] [,3] [,4]
[1,]0101
[2,]1111
[3,]11
Try this:
unSpells[tail(Atr,1)==0] <-
apply(Atr,2,function(x)sum(x==0))[tail(Atr,1)==0]
Or (if you don't have to preserve the value in the unSpells vector):
unSpells <- apply(Atr,2,function(x)sum(x==0))
But in this case you have 0 instead of 1 in the second and fourth position.
Ciao,
domenico
it's not totally clear to me what exactly do you need in this case, but
have a look at the following:
Atr <- cbind(rep(1:0, each = 4), 1, c(1, rep(0, 7)), 1)
unSpells <- colSums(Atr == 0)
unSpells[unSpells == 0] <- 1
unSpells
I hope it helps.
Best,
Dimitris
Mario Lavezzi wrote:
Hello,
I ha
Hello,
I have the following problem.
I am running simulations on possible states of a set of agents
(1=employed, 0=unemployed).
I store these simulated time series in a matrix like the following,
where rows indicates time periods, columns the number of agents (4
agents and 8 periods in this
Dear Petr
Thanks for the response. Hope it will now help me to proceed.
best regards
M.Azam
From: Petr PIKAL <[EMAIL PROTECTED]>
Cc: R Help ; [EMAIL PROTECTED]
Sent: Monday, October 27, 2008 8:43:27 AM
Subject: Odp: [R] Request: Most repeated sequence considerin
Wacek Kusnierczyk wrote:
smells bad design.
Nonsense.
One of the key design features of R is that it
hides implementation details from users. They
are free to think about the substantive issues with
their data rather than worrying about computational
trivia.
There may have been some, bu
This comes up from time to time. The problem is that one needs complex
numbers to address taking the third root: there are three cube roots
for any nonzero number (real or complex). To wit:
> (-0.084121928394+0i)^(1/3)
[1] 0.2190818+0.3794609i
> (-0.084121928394-0i)^(1/3)
[1] 0.21908
On Sun, Oct 26, 2008 at 8:06 PM, Duncan Murdoch <[EMAIL PROTECTED]>wrote:
> On 26/10/2008 11:54 AM, John Lande wrote:
>
>> dear all,
>>
>> I have a little problem I am doing a loop, witha grep function. sometimes
>> it
>> happens that have the following results
>>
>> tmp <- grep("x", y)
>>> tmp
Hi
not sure if this is what you want. It does not do fuzzy matching but make
a exact evaluation equal row sums of arrays.
rle(do.call("c",lapply(lapply(l, rowSums), function(x) paste(x,
collapse=""
Maybe something similar can be done without conversion to character.
Regards
Petr
[EMAIL
Hello
Im trying to install package rgl in a freshly installed Ubuntu 8.04
system. I have a problem (actually is has been reported three times on
the R-list but the answers were too complicated for me) when
installing:
configure: using libpng dynamic linkage
checking for X... no
configure: error:
megh wrote:
I am looking fpr a algo to find matrix inverse. Till time I am aware of
Gauss-Jordan Elimination procedure to find the same. Are there any other
algo. as well? What does R use to find the inverse?
There are many algorithms, depending on matrix structure and properties.
R interfaces
Hi,
I am trying to estimate a quantile regression using panel data. I am trying
to use the model that is described in Dr. Koenker's article. So I use the
code the that is posted in the following link:
http://www.econ.uiuc.edu/~roger/research/panel/rq.fit.panel.R
This code run perfectly. Then
Hi
[EMAIL PROTECTED] napsal dne 25.10.2008 19:19:45:
> #is this what you want?
> x <- c(-10, -5, 0, 5, 10, 15, 20)
> y <- c(10, 10, 10, -5, -6, -7, 10)
> data <- data.frame(x, y)
> subset(data, x>0 & y==min(y))
Not exactly. But maybe
y.val=which(data$y==min(data$y))
x.val=which(data$x>0)
data[x
Hello.
I have serveral problems obtaining percentile intervals via bootstrap in panel
data:
Assuming a TxN panel with T observations across N groups and T>>N. I want to
apply the two step Fama/MacBeth procedure (FM), so I have to look, if the mean
of the estimated slopes over time is significa
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