Tim Churches tchur at optushome.com.au writes:
A recent paper from Google Labs, interesting in many respects, not the
least the exclusive use of R for data analysis and graphics (alas not
cited in the approved manner):
http://labs.google.com/papers/disk_failures.pdf
...
For all of you
Hi,
I am trying to obtain the heteroskedasticity consitent standard errors
(HCSE) after apply 2SLS. I obtain 2SLS through tsls from package sem or
systemfit:
tsls
library (sem)
Reg2SLS -tsls(LnP~Sc+Ag+Ag2+Var+R+D,~I2+Ag+Ag2+Var+R+D)
summary (Reg2SLS)
systemfit
Dear all,
Can anyone please shed some light onto how to do this?
This will give me all intensity columsn in my data frame:
intensityindeces - grep(^Intensity,names(dataframe),value=TRUE)
This will give me the maximum intensity for the first row:
intensityone - max(dataframe[1,intensityindeces])
Johannes Graumann wrote:
Dear all,
Can anyone please shed some light onto how to do this?
This will give me all intensity columsn in my data frame:
intensityindeces - grep(^Intensity,names(dataframe),value=TRUE)
This will give me the maximum intensity for the first row:
intensityone -
do.call(pmax, dataframe[,intensityindeces])
if I understand you aright.
On Mon, 19 Feb 2007, Johannes Graumann wrote:
Dear all,
Can anyone please shed some light onto how to do this?
This will give me all intensity columsn in my data frame:
intensityindeces -
I've read the Windows FAQ, I tried flush.console(), but then it continious
with the calculations, while I didn't select a range for the graphics.
Is there a possibility to wait for user input or something?
Thanks
Bart
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
CC:
Try this:
DF[c(FALSE, tail(DF$Open, -1) head(DF$High, -1)), ]
or using zoo objects just compare the Open to the reverse lag of the High.
Lines - Date Open HighLowClose
1/15/2000 10 11 8 10
1/16/2000 12 12 10 11
1/17/2000 12 12 10
Hello all,
using GNU WinGW under Windows, I have experimented with the Rcpp package.
Powerful package. Many thanks to Dominick Samperi.
Now I have tried to modify the RccpExample.cpp file in order to calculate two
different moving averages, a simple moving average and an exponential moving
Hello R Users,
I have two data sets i) TOMS aerosol optical depth(AOD) and ii) TOMS
ozone(O3).
AOD data is on 1x1 grid and O3 data is on 5x5 grid.
First I want to read AOD and O3 as it is and then I want to regrid AOD on
5x5 grid as O3.
Reading is first problem.
FIRST PROBLEM READING AOD:
On Monday 19 February 2007 11:53, Prof Brian Ripley wrote:
do.call(pmax, dataframe[,intensityindeces])
Thank you very much for your help!
Any idea why do.call(pmax,list(na.rm=TRUE),dataframe[,intensityindeces])
would give me
Error in if (quote) { : argument is not interpretable as logical
In
Hello R Users,
I am new to R.
I have two data sets i) TOMS aerosol optical depth(AOD) and ii) TOMS
ozone(O3).
AOD data is on 1x1 grid and O3 data is on 5x5 grid.
First I want to read AOD and O3 as it is and then I want to regrid AOD on
5x5 grid as O3.
Reading is first problem.
FIRST
On Mon, 19 Feb 2007, Johannes Graumann wrote:
On Monday 19 February 2007 11:53, Prof Brian Ripley wrote:
do.call(pmax, dataframe[,intensityindeces])
Thank you very much for your help!
Any idea why do.call(pmax,list(na.rm=TRUE),dataframe[,intensityindeces])
You want something like
Try do.call(pmax,c(dataframe[,intensityindices],na.rm=TRUE))
This is like the second example in the help page for do.call
On 19/02/07, Johannes Graumann [EMAIL PROTECTED] wrote:
On Monday 19 February 2007 11:53, Prof Brian Ripley wrote:
do.call(pmax, dataframe[,intensityindeces])
Thank you
Tim Churches tchur at optushome.com.au writes:
A recent paper from Google Labs, interesting in many respects, not the
least the exclusive use of R for data analysis and graphics (alas not
cited in the approved manner):
http://labs.google.com/papers/disk_failures.pdf
Perhaps some of the
On Mon, 19 Feb 2007, Ben Bolker wrote:
Tim Churches tchur at optushome.com.au writes:
A recent paper from Google Labs, interesting in many respects, not the
least the exclusive use of R for data analysis and graphics (alas not
cited in the approved manner):
Oleg Sklyar wrote:
The problem occurs after updating from Dapper to Edgy. Dapper had font
paths: /usr/share/X11/fonts and Edgy, to make the whole font system
unified, moved X11 fonts to /usr/share/fonts/X11. Oleg
I think I changed the font path in the X config file *and* added a
symlink
Thanks to you and Brian Ripley. Quite confusing all this ...
Thanks again.
Joh
On Monday 19 February 2007 13:42, David Barron wrote:
Try do.call(pmax,c(dataframe[,intensityindices],na.rm=TRUE))
This is like the second example in the help page for do.call
On 19/02/07, Johannes Graumann
Hi R,
Let 'dd' be a data frame given as:
dd=data.frame(aa=c(a,a,b,a,b,b),bb=c(1,1,1,2,3,4))
Now I want to create a column 'g' such that if dd$aa=a then dd$g=1 else
dd$g= -1 .
So, I gave the below syntax:
if((dd$aa)==a) dd$g=1 else dd$g= -1
But I get the error message as:
Hi useRs,
I am trying to calculate the Sharpe ratio with sharpe of the library
tseries.
The documentation requires the univariate time series to be a
portfolio's cumulated returns. In this case, the example given
data(EuStockMarkets)
dax - log(EuStockMarkets[,FTSE])
is however not the
Hi,
I have some big calculations in R to be done.
Since I can use R on a server with ssh, i was wondering if I can reopen
a R Shell after exiting ssh.
I don't want to use the batch mode and nohup doesn't work.
I want to use something like
ssh [EMAIL PROTECTED]
R
---do something in R and start
Maybe this isn't the most elegant way, but it should work.
dd$g - -1
dd$g[dd$aa == a] - 1
Cheers,
Thierry
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Reseach Institute for Nature
and Forest
Cel
On 2/19/2007 8:36 AM, Shubha Vishwanath Karanth wrote:
Hi R,
Let 'dd' be a data frame given as:
dd=data.frame(aa=c(a,a,b,a,b,b),bb=c(1,1,1,2,3,4))
Now I want to create a column 'g' such that if dd$aa=a then dd$g=1 else
dd$g= -1 .
So, I gave the below syntax:
try
dd$g - ifelse(dd$aa==a,1,-1)
and in general, you can convert categorical data (factors) into integers with
as.integer(), though the values will be positive:
dd$f - as.integer(factor(dd$aa))
--- Shubha Vishwanath Karanth [EMAIL PROTECTED] wrote:
Hi R,
Let 'dd' be a data frame
If one specifies new options in a package, using the options()
function, where does/should one document these new options?
E.g. suppose that I put the line
options(melvin=42)
in a file zzz.R in the R directory of the package source, where the
package contains functions foo(), bar(),
Maybe I should explain my Problem a little bit more detailed.
The rpart package allows for user defined split functions. An example is
given in the source/test directory of the package as usersplits.R.
The comments say that three functions have to be supplied:
1. The 'evaluation' function. Called
On 2/19/07, Nils Höller [EMAIL PROTECTED] wrote:
Hi,
I have some big calculations in R to be done.
Since I can use R on a server with ssh, i was wondering if I can reopen
a R Shell after exiting ssh.
I don't want to use the batch mode and nohup doesn't work.
I want to use something like
Hello,
I have a particular situation where a single wrong observation is
impacting the results of a traditional regression to the point that
betas become unreliable. I need a way to calculate the most likely
betas. Here's an example:
set.seed(1)
unknownbeta -
Let 'dd' be a data frame given as:
dd=data.frame(aa=c(a,a,b,a,b,b),bb=c(1,1,1,2,3,4))
Now I want to create a column 'g' such that if dd$aa=a then dd$g=1 else
dd$g= -1 .
You need to use ifelse instead of the if ... else construction:
dd$g = ifelse(dd$a=='a', 1, -1)
cu
Philipp
Douglas Bates wrote:
On 2/19/07, Nils Höller [EMAIL PROTECTED] wrote:
Hi,
I have some big calculations in R to be done.
Since I can use R on a server with ssh, i was wondering if I can reopen
a R Shell after exiting ssh.
I don't want to use the batch mode and nohup doesn't work.
I want
Hello again,
I'm trying to do the following:
subset(dataframe,list %in% strsplit(dataframe[[Field]],,))
But This returns always the complete dataframe, since the
strsplit(dataframe[[Field]],,) is evaluated as one big list for the whole
data frame rather than one list per row. How can I have
Hi Nils,
if the server you're using is *NIX, this is what you can do:
example
ssh [EMAIL PROTECTED]
screen
R
do what you need in R
close the terminal without quitting R
ssh [EMAIL PROTECTED]
screen -r
continue working in R
%% end example
the problem is if you need X... it works
Hi,
You can take a look at GNU screen programm:
http://www.gnu.org/software/screen/
Andris Jankevics
On Pirmdiena, 19. Februāris 2007 15:56, Nils Höller wrote:
Hi,
I have some big calculations in R to be done.
Since I can use R on a server with ssh, i was wondering if I can reopen
a R Shell
(An R-devel topic, I believe.)
I would have documentation for options() in the package that documented
the additional options and linked to \code{\link[base]{options}}.
Users will be given a choice of which page to view on most systems, so
just make sure the title makes clear that this is
Nils Höller wrote:
Hi,
I have some big calculations in R to be done.
Since I can use R on a server with ssh, i was wondering if I can reopen
a R Shell after exiting ssh.
I don't want to use the batch mode and nohup doesn't work.
I want to use something like
ssh [EMAIL PROTECTED]
R
Hi all,
I have a problem to estimate Std. Error and t-value by “polr” in library Mass.
They result from the summary of a polr object.
I can obtain them working in the R environment with the following statements:
temp - polr(formula = formula1, data = data1)
coeff - summary(temp),
On Mon, 19 Feb 2007, Benilton Carvalho wrote:
Hi Nils,
if the server you're using is *NIX, this is what you can do:
example
ssh [EMAIL PROTECTED]
screen
R
do what you need in R
close the terminal without quitting R
ssh [EMAIL PROTECTED]
screen -r
continue working in R
Here is a script that will read in you O3 data. It assumes that the data is
perfect. You will have to either prescan the data for errors, or add code
to catch them.
# setup to read your file
# this procedure works if the data is 'perfect'; it does not catch errors
# 'result' is a list of
try:
plot(..., type='p',pch='.',...)
you can also use the cex parameter to change the size of points.
Also, look at the hexbin package for an alternative.
Hope this helps,
From: [EMAIL PROTECTED] on behalf of downunder
Sent: Tue 11/21/2006 1:55 PM
To:
Also try the 'hexbin' package which is a good way of showing the 'density'
of the points.
On 2/19/07, Greg Snow [EMAIL PROTECTED] wrote:
try:
plot(..., type='p',pch='.',...)
you can also use the cex parameter to change the size of points.
Also, look at the hexbin package for an
Hello,
I am trying to run a constrained linear regression of a dependent
variable y on three explanatory variables x1, x2, and x3. However, I
need to constrain the coefficients of the explanatory variables as
follows: b10, b20, and b30.
Does anyone know how to do this within the lm/glm
On Mon, 2007-02-19 at 16:13 +0100, Johannes Graumann wrote:
Hello again,
I'm trying to do the following:
subset(dataframe,list %in% strsplit(dataframe[[Field]],,))
But This returns always the complete dataframe, since the
strsplit(dataframe[[Field]],,) is evaluated as one big list for
On Mon, 2007-02-19 at 09:58 -0500, Pierre Lapointe wrote:
Hello,
I have a particular situation where a single wrong observation is
impacting the results of a traditional regression to the point that
betas become unreliable. I need a way to calculate the most likely
betas. Here's an
On Monday 19 February 2007 17:49, jim holtman wrote:
have you tried 'unlist(strsplit())'?The 'unlist' will probably give
you more values than you have rows, so it would be good if you could
explain what it is you are trying to do.
I want to isolate a data frame containing all rows of
Dear R users,
I need a professional help:
i am a relatively new R user and I am just writing my diploma tesis where I
have to conduct some multiple comparison.
I am searching a method which include interaction between fixed factors. The
following is my model:
try this:
my.list - c(7,12,3)# set of matching numbers
set.seed(1)
result - character(40) # create empty vector
# create some comma separated data
for(i in 1:40) result[i] - paste(sample(1:20,6), collapse=',')
# just leave it as a character vector for testing == you can convert your
Sir I am very new user of R. I am not understanding the how to write the
plot description in box outside the plot. And how we can plot the moving
averages on the plot having regression line and time series.
Please guide me in this regard
AMINA
GC University, Lahore
[[alternative HTML
Hi All,
I would like to ask the following.
I have an array of data in an objetct, let's say X.
I need to use a for loop on the elements of one or more columns of X and I am
having a debate with a colleague about the best memory management.
I believe that if I do:
col1 = X[,1]
col2 = X[,2]
Hi Mark,
In my example, there has been a regime change at time 25 and I'd like
to find a way to discover 1- what has changed and 2- when it did.
The problem is all that is observed are the x and y values.
unknownbetas are... unknown. If you look at x and y, you can't really
tell something has
I am trying to estimate prediction intervals for wind power production, it
is a times series of wind power production. Im using neural networks for
prediction, but I need to estimate the uncertainly in the prediction. How
can I do this in R if I have a probability distribution that is right
Pierre,
Unfortunately, I don't have much in the way of hands on experience
with these, but conceptually, latent variable analysis/SEM methods seem
like they might be apropos. If so, John Fox' SEM package might be of
value here. More information here:
I'm running R 2.4.1 (with the latest versions of all packages) on an
FC6 32-bit system. When I try to install the rgl package, compilation
fails:
install.packages(rgl)
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... done
trying URL
Check again your error message:
opengl.hpp:24:20: error: GL/glu.h: No such file or directory
you need to install
mesa-libGLU-devel FC6 version is 6.5.1-7
which will provide development files for glut3. Needless to say the
above will probably pool some dependencies and (-devel) means it will
As the error message indicates, there is no GL/glu.h file installed in the
system. If it is, the path is not properly set.
% yum provides GL/glu.h
on FC6 should give you some clues and tell you what to install, and also
whether it should be installed.
Ranjan
On Mon, 19 Feb 2007 14:35:29
You are missing the OpenGLU headers. On FC5 they are in mesa-libGLU-devel
From the README:
REQUIREMENTS
Windowing System (osx/carbon, unix/x11 or win32)
OpenGL Library
OpenGL Utility Library (GLU)
On Mon, 19 Feb 2007, Rick Bilonick wrote:
I'm running R 2.4.1 (with the
On Mon, 19 Feb 2007, Federico Calboli wrote:
Hi All,
I would like to ask the following.
I have an array of data in an objetct, let's say X.
I need to use a for loop on the elements of one or more columns of X and I am
having a debate with a colleague about the best memory management.
On Mon, 2007-02-19 at 19:56 +, Oleg Sklyar wrote:
Check again your error message:
opengl.hpp:24:20: error: GL/glu.h: No such file or directory
you need to install
mesa-libGLU-devel FC6 version is 6.5.1-7
which will provide development files for glut3. Needless to say the
above
Charles C. Berry wrote:
Whoa! You are accessing one ROW at a time.
Either way this will tangle up your cache if you have many rows and
columns in your orignal data.
You might do better to do
Y - t( X ) ### use '-' !
for (i in whatever ){
do something using Y[ , i ]
}
My
The error is different now. It now cannot find Xext library. Do a yum search on
this and install that.
yum provides libXext
which will give you the package Xext which needs to be installed.
You may also need to install the libXext-devel.i386 package.
HTH.
Ranjan
On Mon, 19 Feb 2007
After several trial and error attempts, I managed to install the Rmpi
package without error on my Linux machine, running Fedora 5.
I installed lam-7.1.2, lam-devel-7.1.2 and R-2.4.1, R-devel-2.4.1
The Package Rmpi_5.0-3.tar.gz, I installed once from within R and once
from the command line to
I have a large dataset where each Subject answered seven similar
Items, which are binary yes/no questions. So I've always used Subject
and Item random effects in my models, fit with lmer(), e.g.:
model-lmer(Response~Race+Gender+...+(1|Subject_ID)+(1|
Item_ID),data,binomial)
But I recently
Is /usr/lib/lam in your ld search path? This sort of message usually
means a shared library cannot be found. You do need lam-libs as well
according to yum.
R CMD ldd /usr/lib/R/library/Rmpi/libs/Rmpi.so
/sbin/ldconfig -p | grep /usr/lib/lam
might be illuminating.
There are various problems
Farrel Buchinsky [EMAIL PROTECTED] wrote:
I tried biomaRt
library(biomaRt)
ensnp = useMart(snp, dataset = hsapiens_snp)
snp = getSNP(chromosome = 17, start = 73649033, end = 73679033, mart =
ensnp)
show(snp)
Gave me a nice table but it did not seem to permit starting from the point
Hello all,
I am low down on the learning curve of R but so far I have had little
trouble using most of the packages. However, recently I have run into
a wall when it comes to bootstrapping a Levene's test (from the car
package) and thought you might be able to help. I have not been able
Hi
I am trying to use tree() to classify movements in a futures contract. My
data is like this:
diff dip dim adx
1 0100.08650.100.0
2 0 93.185402044.5455 93.18540
3 0 90.30995
I am trying to avoid that dotplot sorts my x-values. They are in the correct
order in the data.frame and the connections between the x-y values follows
this order, but the placement of the x-values on the x-axis is re-ordered.
In the following example, the order should be d1, d8 and d15. However,
Am 19 Feb 2007 um 20:28 hat Rene Braeckman geschrieben:
From: Rene Braeckman [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Date sent: Mon, 19 Feb 2007 20:28:01 -0800
Subject:[R] How to avoid sort of x values in dotplot?
I am
Hi
On 19 Feb 2007 at 9:11, Duncan Murdoch wrote:
Date sent: Mon, 19 Feb 2007 09:11:52 -0500
From: Duncan Murdoch [EMAIL PROTECTED]
To: Shubha Vishwanath Karanth [EMAIL PROTECTED]
Copies to: r-help R-help@stat.math.ethz.ch
Subject:
I have so far had the only return to my query from Steve Dutky.
I am familir with matrix eigen value and vector manipulation.
If you have anything to share with me, it would be good chance for me
to follow up the AHP-related thing. Furthermore, I am good at
statistics fairely.
Thanks for your
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