You need recent enough cairo libraries in your OS. Your OS appears to
date from mid 2006, so likely you need a later cairo: my system is using
cairo 1.4.10 and found all the backends.
Your kernel is quite old: does your OS have kernel and cairo updates you
have not applied?
On Fri, 26 Oct
Regarding financial data: I have a high frequency (1 minute) measure of
supply/demand and I'd like to know if it has any influence on short term
price changes (also 1 minute).
Question: How do I calculate the correlation between this supply/demand
measure and price changes (correctly)?
Some
Good afternoon!
As mentioned in the subject, my question regards more the methodological part
that accompanies survey design and the statistical part that is involved.
So, I have the following data:
a-data.frame (id_hh=c(1:5), strata=c(1,1,2,2,1),
Nhstrata=c(100,100,200,200,100),
Hello,
I am using Oracle 10.2 and R 2.6 on Windows XP.
I found RODBC working generally OK (with some minor problems) but very slow, so
I am trying to use RJDBC.
While getting things (dbGetQuery) works fine, I have problems with saving:
dbWriteTable(conn, WAV, save_df, overwrite = F, append = T,
Many of these points are discussed in
http://www.burns-stat.com/pages/Tutor/R_relative_statpack.pdf
a collaborative effort that I edited. In particular the final quote by
Jonathan Baron addresses point 5:
Another point, which I repeatedly make to students, is that R is
free and will continue to
Thanks Chales for pointing out the errors.
I fixed an errorr and R accepted my rootFinding code.
But the problem right now is that my code will work only if the intialX
value is close enough to the solution.
Otherwise, R says there is missing true/false value in the codition test of
while loop.
Sorry, I meant non-R question.
Sorry for the inconvenience!
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PLEASE
Hello everyone.
I have got a little question on selecting a proper
bandwidth for kernel regression.
As you all know, for bandwidth selection in a
regression case you can use the averaged squared error
as a criterion for goodness of fit, but for some
problems (e.g. the bandwidth h approaches to
Dear R users,
I need to reorder a dataframe using 3 variables for the determine the
sorting order.
When I create a simple dataframe to test the method, things work as I
expected:
a1 - rep(1:10, each=8)
a2 - rep(rep(1:2, each=4), 10)
a3 - rep(c(1:4),20)
(a - data.frame(a1, a2, a3))
for each
As a newbie to R I have the following question. I would like to compare values
in a time series with values of the same series x observations ago. In gretl
this is simply done like so:
In R, I seem not to get it working. I have tried lag(data,-x) to obtain the
lagged time series which
On Sat, 27 Oct 2007, kevinchang wrote:
Thanks Chales for pointing out the errors.
I fixed an errorr and R accepted my rootFinding code.
But the problem right now is that my code will work only if the intialX
value is close enough to the solution.
Otherwise, R says there is missing
Chabot Denis wrote:
Dear R users,
I need to reorder a dataframe using 3 variables for the determine the
sorting order.
When I create a simple dataframe to test the method, things work as I
expected:
a1 - rep(1:10, each=8)
a2 - rep(rep(1:2, each=4), 10)
a3 - rep(c(1:4),20)
(a -
Dear useRs,
I have a large dataset (600 to 2000 observations) that I need to cluster with a
hierarchical technique, and then examine so that I can use cutree to extract
various groups. I would like to visualize the results of hclust in a
dendrogram, but this is obviously too much data for
Thank you very much for your detailed explanation and two solutions,
Duncan.
Denis
Le 07-10-27 à 12:44, Duncan Murdoch a écrit :
Chabot Denis wrote:
Dear R users,
I need to reorder a dataframe using 3 variables for the determine
the sorting order.
When I create a simple dataframe to
Regarding your first issue:
you could make a package to contain your function (see ?package.skeleton
and the manual Writing R extensions) - then you could use
library(yourpackagename). Or you could save the definition of your
function(s) in a text file, and use source(textfilename) to load the
Dear R-helpers,
I'm trying to selectively swap labels between two factors, depending
on an indicator variable i.
Can you point me to a solution, and perhaps how I could have found it?
labels(fact1) is a character vector of r row numbers
levels(fact1) is a character vector of the n r unique
Jonas, if you want the function to load really automatically,
without running source of anything, read
?Startup
Basically you need to create an .Rprofile file (its location depends
on your operating system) containing the R code you want to run
at startup.
Gabor
On Sat, Oct 27, 2007 at
On Sat, 27 Oct 2007, Michael Kubovy wrote:
Dear R-helpers,
I'm trying to selectively swap labels between two factors, depending
on an indicator variable i.
Can you point me to a solution, and perhaps how I could have found it?
labels(fact1) is a character vector of r row numbers
Hi, folks:
I need to generate all 0-1 sequences with given length,say,n=3, the ideal
result would be
the following matrix:
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Any help would be appreciated.
--
View this message in context:
Thanks a lot.
Henrique Dallazuanna wrote:
Hi,
expand.grid(x=c(0,1), y=c(0,1), z=c(0,1))
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40 S 49° 16' 22 O
On 27/10/2007, roger chan [EMAIL PROTECTED] wrote:
Hi, folks:
I need to generate all 0-1 sequences with given
Diane Srivastava srivast at zoology.ubc.ca writes:
I have a meta-analysis dataset which I would like to analyze as a mixed
model, where the y-variable is a measure of effect size, the random effect
is the study from which the effect size was extracted, and the fixed
effect is a categorical
Hello all,
I apologize in advance if this is not the correct list to post these sorts
of issues. When attempting to install the latest stable build of R (2.6) or
the most recent nightly build from R.research.att.com, the installer
disables the ability to actually install R or any of the other
least=list.
it is late (here)!
On 28/10/2007, Mark Wardle [EMAIL PROTECTED] wrote:
Hi.
Sorry to hear you are having problems. I'm not installing Leopard just
yet, as I cannot live without a working system running R, PostgreSQL,
Filemaker, and Adobe applications. At least two on that least
Hi.
Sorry to hear you are having problems. I'm not installing Leopard just
yet, as I cannot live without a working system running R, PostgreSQL,
Filemaker, and Adobe applications. At least two on that least are said
to have problems with Leopard!
If no-one else replies, try the Mac R help list.
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