Duncan == Duncan Murdoch [EMAIL PROTECTED]
on Mon, 07 Mar 2005 19:32:17 + writes:
Duncan On Mon, 7 Mar 2005 18:18:37 + (GMT), Prof Brian
Duncan Ripley [EMAIL PROTECTED] wrote :
On Mon, 7 Mar 2005, Duncan Murdoch wrote:
On Tue, 8 Mar 2005 00:31:07 +0800
On Tue, 8 Mar 2005 01:50:04 -0600, [EMAIL PROTECTED] wrote :
Hello R-users!
I am trying to plot 3 vectors (x,y,z) of observations
generated by mvrnorm in library(MASS).
I tried plot3d in library(djmrgl) and scatterplot3d.
But these program gives x,y,z axis which do not
intersect at the origin
hi
?integer says:
Note that on almost all implementations of R the range of
representable integers is restricted to about +/-2*10^9: 'double's
can hold much larger integers exactly.
I am getting very confused as to when to use integers and when not to.
In my line
I need exact
Robin Hankin [EMAIL PROTECTED] writes:
hi
?integer says:
Note that on almost all implementations of R the range of
representable integers is restricted to about +/-2*10^9: 'double's
can hold much larger integers exactly.
I am getting very confused as to when to
On Tue, 8 Mar 2005 09:03:43 +, Robin Hankin
[EMAIL PROTECTED] wrote :
hi
?integer says:
Note that on almost all implementations of R the range of
representable integers is restricted to about +/-2*10^9: 'double's
can hold much larger integers exactly.
I am getting very
On Tue, 8 Mar 2005, Duncan Murdoch wrote:
On Tue, 8 Mar 2005 09:03:43 +, Robin Hankin
[EMAIL PROTECTED] wrote :
hi
?integer says:
Note that on almost all implementations of R the range of
representable integers is restricted to about +/-2*10^9: 'double's
can hold much larger
Estimado visitante,
Por el momento no nos es posible responder a su correo, estamos trabajando para
que en fecha próxima podamos resolver sus dudas y/o comentarios.
Atentamente.
Mascotanet.com
__
R-help@stat.math.ethz.ch mailing list
Dear R-help
I am wondering if somebody wrote some code to convert an adjacency list
model into a nested set model.
In principal I want to do the same as John Celko mentioned it here with
SQL:
http://groups.google.co.uk/groups?hl=enlr=lang_enselm=8j0n05%24n31%241
%40nnrp1.deja.com
Assume you have
On Tue, 8 Mar 2005, Martin Maechler wrote:
Duncan == Duncan Murdoch [EMAIL PROTECTED]
on Mon, 07 Mar 2005 19:32:17 + writes:
Duncan On Mon, 7 Mar 2005 18:18:37 + (GMT), Prof Brian
Duncan Ripley [EMAIL PROTECTED] wrote :
On Mon, 7 Mar 2005, Duncan Murdoch wrote:
On
Congratulations Dirk on the article in linuxtoday.com today about Quantian.
--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University
__
R-help@stat.math.ethz.ch
hello, I have got some trouble with R functions nlm(),
nls() or optim() : I would like to fit 3 parameters
which must stay in a precise interval. For exemple
with nlm() :
fn-function(p) sum((dN-estdata(p[1],p[2],p[3]))^2)
out-nlm(fn, p=c(4, 17, 5),
hessian=TRUE,print.level=2)
with estdata() a
Sébastien Ballesteros wrote:
hello, I have got some trouble with R functions nlm(),
nls() or optim() : I would like to fit 3 parameters
which must stay in a precise interval. For exemple
with nlm() :
fn-function(p) sum((dN-estdata(p[1],p[2],p[3]))^2)
out-nlm(fn, p=c(4, 17, 5),
I have had my best luck by re-parametrizing so that I no longer needed
restrictions. For example, if parameters must be positive, then I optimize
over parameters in log space, taking the exponential within my function.
This requires small changes to the function I'm optimizing (and the
gradient,
maybe you could re-parameterize the problem, e.g.,
p \in (a, b)
p^* = (p - a) / (b - a) \in (0, 1)
x = qlogis(p^*) \in \Re
I hope it helps.
Best,
Dimitris
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Address: Kapucijnenvoer 35,
Hello,
I have a problem and wish if anybody have a quick
solution or function or if this question was asked
before and you could give me the date to look in the
archives for the response.
My problem is that I have a dataframe D[663,40] with
only one column with repeated values lines and a
factor
Hi all,
I have got a dataframe in coma delimted text format. My ESS and R processes
are working well and active. I can read R help files and documentations from
inside ESS.
Can I perform anayltical operations such as (glm, plot ect) on elements of
my dataframe (variables) from within ESS? I
Ramzi Feghali ramzi_feg at yahoo.fr writes:
:
: Hello,
: I have a problem and wish if anybody have a quick
: solution or function or if this question was asked
: before and you could give me the date to look in the
: archives for the response.
: My problem is that I have a dataframe D[663,40]
try and read the ess manual a bit and look at the folowing reference card
http://stat.ethz.ch/ESS/refcard.pdf
On Tue, 8 Mar 2005, Mahdi Osman wrote:
Hi all,
I have got a dataframe in coma delimted text format. My ESS and R processes
are working well and active. I can read R help files and
Insightful is searching for a candidate to fill a technology position whose
primary function is to develop commercial software for statistical analysis
of large experimental bioinformatics/genomics data sets. Tools include
supervised and unsupervised machine learning techniques, with applications
Dear group,
A data matrix when plotted as a line plot, I see
several
patterns. For example, how my students performed for
different courses they took this academic year. I need
to find out a pattern divided into three categories...
say excellent, mediocral and worst. How can I be able
to fix
A small correction:
a,b,c,d - On X-axis
course points : on Y-axis for all students.
2. I do not know if this can be called pattern
recognition. What i mean is the line patterns in the
line graph.
P
--- S Peri [EMAIL PROTECTED] wrote:
Dear group,
A data matrix when plotted as a
Gesmann, Markus Markus.Gesmann at lloyds.com writes:
:
: Dear R-help
:
: I am wondering if somebody wrote some code to convert an adjacency list
: model into a nested set model.
: In principal I want to do the same as John Celko mentioned it here with
: SQL:
:
Hi;
I am working with the similarity matrix below and I would like to plot
a two-dimensional MDS solution such as each point in the plot has a
label.
This is what I did:
data - read.table('c:/multivariate/mds/colour.txt',header=FALSE)
similarity - as.dist(data)
distance - 1-similarity
is that 'x' is level or trend stationary. I did this
s-rnorm(1000)
kpss.test(s)
KPSS Test for Level Stationarity
data: s
KPSS Level = 0.0429, Truncation lag parameter = 7,
p-value = 0.1
Warning message:
p-value greater than printed p-value in:
kpss.test(s)
My
As help(kpss.test) tells you: kpss.test() approximates the p values by
interpolation from a simulated table of critical values. As p values
larger than 0.1 are typically regarded to be non-significant and p
values smaller than 0.01 are typically regarded to be highly
significant, the corresponding
Understood!
And thanks!
Weiguang
--- Achim Zeileis [EMAIL PROTECTED]
wrote:
As help(kpss.test) tells you: kpss.test()
approximates the p values by
interpolation from a simulated table of critical
values. As p values
larger than 0.1 are typically regarded to be
non-significant and p
Dear All,
I saved by mistake the environment I was working in after typing q(),
and now I get the annoying message:
[Previously saved workspace restored]
I have already deleted all the objects in the environment, saving it as
an empty environment, so it's just a matter of nitpicking I suppose.
R saves the workspace in a file called '.RData'. Simply remove this
file from your working directory. Or if you startup R and get the
message, try
unlink(.RData)
-roger
Federico Calboli wrote:
Dear All,
I saved by mistake the environment I was working in after typing q(),
and now I get the
On Tue, 2005-03-08 at 15:57 -0500, Wiener, Matthew wrote:
Remove the (now empty, because you deleted all objects) file .RData from
the directory.
Hope this helps,
Thanks, it did fix the problem.
Cheers,
Federico Calboli
--
Federico C. F. Calboli
Department of Epidemiology and Public
Either remove .RData in the directory, or start R with --no-restore option.
Andy
From: Federico Calboli
Dear All,
I saved by mistake the environment I was working in after typing q(),
and now I get the annoying message:
[Previously saved workspace restored]
I have already deleted
On Tue, Mar 08, 2005 at 08:51:44PM +, Federico Calboli wrote:
I saved by mistake the environment I was working in after typing q(),
and now I get the annoying message:
[Previously saved workspace restored]
I have already deleted all the objects in the environment, saving it as
an
On Tue, 08 Mar 2005 20:51:44 + Federico Calboli wrote:
Dear All,
I saved by mistake the environment I was working in after typing q(),
and now I get the annoying message:
[Previously saved workspace restored]
I have already deleted all the objects in the environment, saving it
as
Hello all:
I wonder if there is a generic way to assign the name of a function as an
attribute of the function. For example,
w = function(x) x^2;
attr(w, name) = w;
This assigns the name attribute of function w to be w.
Would it be possible to put the second line of the code inside the
shang stud facS93 at mors.hampshire.edu writes:
:
: Hello all:
:
: I wonder if there is a generic way to assign the name of a function as an
: attribute of the function. For example,
:
: w = function(x) x^2;
: attr(w, name) = w;
:
: This assigns the name attribute of function w to be w.
:
:
This isn't an environment problem. Assigning something to a get call
doesn't make any sense. Use assign.
a - 5
get(a) - 10
Error: couldn't find function get-
And from the ?assign help page, you can pick what environment you want
to make the assignment. Just pick the parent environment.
Assign() re-binds the value, not modifies it (the latter is what I
needed)
-Original Message-
From: McGehee, Robert [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 08, 2005 3:48 PM
To: Vadim Ogranovich; r-help@stat.math.ethz.ch
Subject: RE: [R] how modify object in parent.env
On Tue, 2005-03-08 at 15:36 -0800, Vadim Ogranovich wrote:
Hi,
Is it possible to modify an object in the parent.env (as opposed to
re-bind)? Here is what I tried:
x = 1:3
# try to modify the first element of x from within a new environment
local(get(x, parent.env(environment()))[1] -
You can use - like this:
x - 1:3
local(x[1] - x[1]+1)
Vadim Ogranovich vograno at evafunds.com writes:
:
: Assign() re-binds the value, not modifies it (the latter is what I
: needed)
:
: -Original Message-
: From: McGehee, Robert [mailto:Robert.McGehee at geodecapital.com]
:
After some experimentation, I have had very good luck with the rgenoud
package. It handles box constraints well and for small problems its slow
speed has not been much of a problem. It has worked for me on Windows,
Macintosh, and Linux.
Chris
JPMorgan Asset Management
Hi:
Is there any function in R which can convert the
long/lat to UTM(Universal Transverse Mercator)?
There are quite a few converters on Internet.
However, the interface is designed as input-output
which I can not convert lots of locations at the same
time.
Another question is whether there
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