Hi,
I'm using the R nnet package and have a few simple (?) questions.
What is the value that is output after every 10 iterations during the training of
the network and how is it calculated?
# weights: 177
initial value 506.134586
iter 10 value 128.222774
iter 20 value 95.399782
iter
HI all,
I might add some more information in order to possibly solve my problem. I'm
really stuck and no obvious solutions do the trick.
I'm using R 1.7.1 on Windows 2000 with the packages regurarly updated.
I'm using hypothetical data constructed as a pseudo population conforming to
a certain
p hu wrote:
Dear R-helper,
I have one question for creating shared objects (C code) on Unix.
Since there is a set of softwares (such as Rtools, Perl, etc.) to be dowloaded for
generating shared objects on windows, I am wondering whether I need to install a set
of these kind of softwares to
Hu == p hu [EMAIL PROTECTED]
on Mon, 29 Sep 2003 23:38:24 -0400 (EDT) writes:
Hu Dear R-helper, I have one question for creating shared
Hu objects (C code) on Unix. Since there is a set of
Hu softwares (such as Rtools, Perl, etc.) to be dowloaded
Hu for generating shared
Dear R users
I have a two-dimensional array, whose values I want to plot, using the
pixmapGrey class. Plotting works fine, and now I would like to be able
to identify some of the points in the plot using identify(). But I get
the following message while pressing the left mouse button:
Is there any R package/function for biclassification (hierarchical reciprocal
clustering of 2 factors) ?
Thanks,
Arnaud
DISCLAIMER**...{{dropped}}
__
[EMAIL PROTECTED] mailing list
Christoph Lehmann wrote:
plot(pixmapGrey(fmri.vtc[,,slice,volume]))
identify(fmri.vtc[,,slice,volume])
warning: no point with 0.25 inches
pressing the right mouse button I get:
numeric(0)
what is the problem here and how can I solve it?
The problem is that there is no method for identifying
On Tue, 30 Sep 2003 10:16:11 +0200,
Christoph Lehmann (CL) wrote:
Dear R users
I have a two-dimensional array, whose values I want to plot, using the
pixmapGrey class. Plotting works fine, and now I would like to be able
to identify some of the points in the plot using identify().
Paul Green wrote:
Is AIC or BIC available when using the
nnet package?
Given you are talking about multinom(): Yes, it returns the AIC for the
fit, but that's already mentioned in the help file...
Uwe Ligges
Thank you
Paul Green
__
[EMAIL
On Tue, 30 Sep 2003 09:38:31 +0100,
Barry Rowlingson (BR) wrote:
Christoph Lehmann wrote:
plot(pixmapGrey(fmri.vtc[,,slice,volume]))
identify(fmri.vtc[,,slice,volume])
warning: no point with 0.25 inches
pressing the right mouse button I get:
numeric(0)
what
Hannah Wood wrote:
Hi,
I'm using the R nnet package and have a few simple (?) questions.
What is the value that is output after every 10 iterations during the training of the network and how is it calculated?
# weights: 177
initial value 506.134586
iter 10 value 128.222774
iter 20
weidong zhang wrote:
Hi All,
I have some questions on using library rpart. Given my data below, the
plotcp gives me increasing 'xerrors' across different cp's with huge
xstd (plot attached). What causes the problem or it's not a problem at
all? I am thinking 'xerror's should be decreasing
Hello,
After reinstalling the whole OS and R as well, I tried to update.packages()
and get the follwing error message:
concerning the mgcv update: atlas2-base is installed and blas as well (on
debian). I haven't found lf77blas, I assume it's a library or something
similar associated with
Martin Wegmann wrote:
Hello,
After reinstalling the whole OS and R as well, I tried to update.packages()
and get the follwing error message:
concerning the mgcv update: atlas2-base is installed and blas as well (on
debian). I haven't found lf77blas, I assume it's a library or something
You need to add atlas2-base-dev:
$ apt-get install atlas2-base-dev
I installed atlas2-base-dev and g77 but know I get the error messages pasted
below. Both (cluster and mgcv) requires lfrtbegin, but that does not seem to
be programm which I can install via apt-get.
Martin
* Installing
when I try to overlay a completely transparent pixmap on another pixmap,
I get an error.
For reproduction: just the transparent pixmap itself gives an error:
tmp - array(0,c(x.dim,y.dim))
tmp - pixmapIndexed(tmp[,])
for (x in 1:x.dim) {
for (y in 1:y.dim) {
[EMAIL PROTECTED],y] - NA
} }
Hi *,
thanks for all your answers and discussions. And additionally special thanks
to Henrik Bengtsson for writing the first draft of the R Coding
Conventions. I think that this document contains a lot of good ideas to make
the code more readable. Since my package is *new* code, I adjusted it
On Tue, Sep 30, 2003 at 02:04:23PM +0200, Martin Wegmann wrote:
You need to add atlas2-base-dev:
$ apt-get install atlas2-base-dev
I installed atlas2-base-dev and g77 but know I get the error messages pasted
below. Both (cluster and mgcv) requires lfrtbegin, but that does not seem to
Hi
I am struggling to fit a non-linear trend using the
likfit function in geoR.
Specifically I want a sigmoidal function, something
like SSfpl in the nls package to fit the trend. But
it seems trend.spatial in geoR only works with lm or
glm type models.
Any ideas how I can specify the model to
David
Indeed, the trend term in geoR must be a linear one.
You can:
1) fit you model by alternating between using nls() and passing the
residuals to the functions in geoR
or
2) try trying to fit using the functions in the nlme() package
Regards
P.J.
On Tue, 30 Sep 2003, David Pleydell wrote:
Could you dumb it down to a toy example with 4 observations for a
model like y ~ 1 | inter, 2 observations for each of 2 levels of
inter? If that works, then you can play with the example that works
and the example that doesn't; this is one of the strategies mentioned
in Poly (1971) How
Francisco J Molina [EMAIL PROTECTED] writes:
To debug R from within Xemacs I have tried two different things:
C-u M-x R RET - d SPC gdb RET to start an inferior R process with arguments
@option{-d gdb}
This is the way described in the official documentation of R.
and also
M-x R
Arne == Arne Henningsen [EMAIL PROTECTED]
on Tue, 30 Sep 2003 14:18:11 +0200 writes:
Arne Hi *,
Arne thanks for all your answers and discussions. And
Arne additionally special thanks to Henrik Bengtsson for
Arne writing the first draft of the R Coding
Arne Conventions.
Is there a function in R which performs stepwise estimation in ways similar
to SAS/STATA (i.e., allows the analyst to specify the significance levels
for removal/addition of terms).
I've been asked to evaluate two final models: one resulting from a
backwards selection in R (stepAIC) and one
On Tuesday 30 September 2003 15:23, Martin Maechler wrote:
Arne == Arne Henningsen [EMAIL PROTECTED]
on Tue, 30 Sep 2003 14:18:11 +0200 writes:
Arne Hi *,
Arne thanks for all your answers and discussions. And
Arne additionally special thanks to Henrik Bengtsson for
Hello,
I have a data set with 10 countries, 10 sectors of public policy and 15 years
like
country sector year
a aa 1980
a aa 1981
...
a bb 1980
a bb 1981
...
b aa 1980
b aa 1981
...
b bb 1980
b bb 1981
On Tue, 30 Sep 2003 09:24:20 -0400
[EMAIL PROTECTED] wrote:
Is there a function in R which performs stepwise estimation in ways similar
to SAS/STATA (i.e., allows the analyst to specify the significance levels
for removal/addition of terms).
I've been asked to evaluate two final
I've been using R for a while, but now find myself needing to understand
time-series objects for a short course I am teaching. I am putting
together some daily financial datasets for illustration, but having some
trouble in aggregating the data to months or weeks. I am getting a
cannot change
Dear R experts!
I'm wondering if it is possible in R to make
a certain type of bar plots, in S-Plus
known as Grouped Bar Plots (see the attachment
for an example).
In S-Plus they can be created with
the guiPlot function.
Thank you for any answers.
Best regards,
Matjaz.inline:
Matjaz Kukar wrote:
Dear R experts!
I'm wondering if it is possible in R to make
a certain type of bar plots, in S-Plus
known as Grouped Bar Plots (see the attachment
for an example).
In S-Plus they can be created with
the guiPlot function.
Thank you for any answers.
?barplot
Uwe Ligges
Best
Zitan Broth wrote:
Right but R is only preloaded once?
Yes. The plr shared library gets loaded and initialized (which in turn
loads and initializes libR) only once -- on Postgres's postmaster
startup. From that point forward, every new database connection gets a
forked copy of the postmaster,
Not sure exactly what you want, but try:
countrySector - factor(paste(df$country, df$sector, sep=:))
where df is the data frame. This creates a factor for the combination. If
you want numeric code, just coerce with as.numeric().
HTH,
Andy
-Original Message-
From: Xavier Fernández
Financial data, as you point out, is generally irregular, which is
in essence what prompted the devlopment of the irregular time-series
(its) package, which is posted on CRAN (v0.1.2 posted today, incidentally).
In the its class, the time-stamps of the rows of a matrix are represented
using the
Change the line in get.hist.quote that pastes the url together
so that g=d (i.e. daily) is replaced with g=m (i.e. monthly).
That will cause monthly data to be downloaded. With this new
get.hist.quote try this:
ibm - get.hist.quote(ibm)
ibm - ts( ibm[!is.na(rowSums(ibm)),], end=c(2003,8),
Dear R-helper,
I am new learning R. Now, I have a data set like:
24,2,3,3,1,1,2,3,0,1
45,1,3,10,1,1,3,4,0,1
43,2,3,7,1,1,3,4,0,1
42,3,2,9,1,1,3,3,0,1
36,3,3,8,1,1,3,2,0,1
19,4,4,0,1,1,3,3,0,1
38,2,3,6,1,1,3,2,0,1
21,3,3,1,1,0,3,2,0,1
27,2,3,3,1,1,3,4,0,1
45,1,1,8,1,1,2,2,1,1
... with 3730 rows
I
On Tue, 30 Sep 2003 18:51:52 +0200, Muhammad Subianto
[EMAIL PROTECTED] wrote :
Dear R-helper,
I am new learning R. Now, I have a data set like:
24,2,3,3,1,1,2,3,0,1
45,1,3,10,1,1,3,4,0,1
... with 3730 rows
I want to remove comma (,) in data set. The result like:
24 2 3 3 1 1 2 3 0 1
45 1 3
Hi,
I'm trying to take a set of rows and columns out of a matrix. I hve
been using the index aray approach. My overll matrix is X and is 179 x
65. I want to take out 4 columns and 161 rows.
Thus I made a 161 x 2 array I and filled it up with the row,col indices.
However doing,
X[ I ] gives me
Hi,
I have a question about using lme and aov for the
following dataset. If I understand correctly, using
aov with Error term in the formula is equivalent to
using lme with default settings, i.e. both assume
compound symmetry correlation structure. And I have
found that equivalency in the past.
Rajarshi -
Why not simply subscript your matrix X to return the rows and
columns you want to keep ? For example,
new - X[16:176, c(3,5,7,9)]
assuming those are the rows and columns you want.
See help(Extract).
- tom blackwell - u michigan medical school - ann arbor -
On Tue, 30 Sep
Hi,
I would like to know if there is a way to see the code of a generic
function?
Like when I only type the function name, it prints the source of that
function. But I cannot see the code of a generic function, it prints:
...
function (object, ...)
standardGeneric(normalize)
environment:
Perhaps someone else can help you figure out how to preserve the names
from argument p to function f in calls to nlm, but I'm now beyond
the limits of my knowledge. I'm sorry, but I can't help further with
this.
Spencer Graves
Jeff D. Hamann wrote:
I started looking
getMethods(normalize) should do the trick.
Best,
Jim
James W. MacDonald
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623
Mathieu Drapeau [EMAIL PROTECTED] 09/30/03 02:14PM
Hi,
I would like to
On 30-Sep-03 Rajarshi Guha wrote:
Hi,
I'm trying to take a set of rows and columns out of a matrix. I hve
been using the index aray approach. My overll matrix is X and is 179 x
65. I want to take out 4 columns and 161 rows.
Thus I made a 161 x 2 array I and filled it up with the row,col
On Tue, Sep 30, 2003 at 02:04:23PM +0200, Martin Wegmann wrote:
You need to add atlas2-base-dev:
$ apt-get install atlas2-base-dev
I installed atlas2-base-dev and g77 but know I get the error messages pasted
below. Both (cluster and mgcv) requires lfrtbegin, but that does not seem to
Dear R Users,
I am trying to obtain a best-fit analytic distribution for a dataset
with 11535459 entries. The data range in value from 1 to 3. I
use: fitdistr(data, gamma) to obtain mle's for the parameters.
I get the following error:
Error in optim(start, mylogfn, x = x, hessian =
(Ted Harding) wrote:
On 30-Sep-03 Rajarshi Guha wrote:
Hi,
I'm trying to take a set of rows and columns out of a matrix. I hve
been using the index aray approach. My overll matrix is X and is 179 x
65. I want to take out 4 columns and 161 rows.
...
This is documented in An Introduction to R,
Hi,
I trying to use r.180beta on a XPPro PC with Athlon 2.0
I downloaded the zip file and when I unzipped it using winzip last version
I had this message:
C:\Program Files\R\rw1080beta\doc\manual\refman.pdf
An error occured while trying to copy a file:
The source file is corrupted.
Anything to do
In my experience, the most likely cause of this problem is that
optim may try to test nonpositive values for shape or scale. I avoid
this situation by programming the log(likelihood) in terms of log(shape)
and log(scale) as follows:
gammaLoglik -
+ function(x, logShape, logScale,
On Tue, 2003-09-30 at 15:51, Jason Turner wrote:
(Ted Harding) wrote:
On 30-Sep-03 Rajarshi Guha wrote:
Hi,
I'm trying to take a set of rows and columns out of a matrix. I hve
been using the index aray approach. My overll matrix is X and is 179 x
65. I want to take out 4 columns and
this problem also occurred later in the installation process:
C:\Program Files\R\rw1080beta\doc\manual\refman.pdf
C:\Program Files\R\rw1080beta\library\mva\html\loadings.html
C:\Program Files\R\rw1080beta\library\ctest\html\fisher.test.html
C:\Program Files\R\rw1080beta\library\base\chtml\base.chm
On Tue, 2003-09-30 at 15:00, [EMAIL PROTECTED] wrote:
this problem also occurred later in the installation process:
C:\Program Files\R\rw1080beta\doc\manual\refman.pdf
C:\Program Files\R\rw1080beta\library\mva\html\loadings.html
C:\Program Files\R\rw1080beta\library\ctest\html\fisher.test.html
On Tue, 2003-09-30 at 15:35, Marc Schwartz wrote:
On Tue, 2003-09-30 at 15:00, [EMAIL PROTECTED] wrote:
this problem also occurred later in the installation process:
C:\Program Files\R\rw1080beta\doc\manual\refman.pdf
C:\Program Files\R\rw1080beta\library\mva\html\loadings.html
C:\Program
Spencer Graves's suggestion of using shape and scale parameters on a log
scale is a good one.
To do specifically what you want (check values for which the objective
function is called and see what happens) you can do the following
(untested!), which makes a local copy of dgamma that you
Please,
I would like to know how to generate a truncated multivariate normal
distribution k - dimensional,X ~ NT(mu, Sigma), where the
elements of X to be non-negative (except the first), and the first
dimension is strictly larger than zero.
Example:
X ~ NT_2(mu, Sigma),
PS. 11 MILLION entries??
On Tue, 30 Sep 2003, Ben Bolker wrote:
Spencer Graves's suggestion of using shape and scale parameters on a log
scale is a good one.
To do specifically what you want (check values for which the objective
function is called and see what happens) you can
Thanks to everyone for your help. I decided to see if the session could
be recovered if I connected back from the original, local terminal.
The local screen was locked by the KDE screensaver. Either my unlocking
it, or the passage of time, seems to have got the process unstuck. It
happened
Do you mean you want to generate deviates from this distribution or that
you want the density function (or distribution function)?
mvrnorm in package MASS (library(MASS)) will generate multivariate normal
deviates. A brute-force approach would just keep picking values until you
get ones in
On Mon, 2003-09-29 at 14:25, Luke Tierney wrote:
Look at ?Signal and see if that would help. You may need to rename
the appropriate .RData beforehand to be safer.
luke
For those who follow, note it's actually
?Signals
you want. It talks about USR1 and USR2 (as did some other people in this
Hi,
can someone please help me.
I will give a simple example of my problem.
p - function()
{
i - 1
sr - function(){
i-i+3
i- sqrt(i)
}
cat(i)
}
This is just an example. My main problem is defining
i like a global variable which I can use in the sub-
and main functions without any
On Tue, 30 Sep 2003 15:56:03 EDT, you wrote:
Hi,
I trying to use r.180beta on a XPPro PC with Athlon 2.0
I downloaded the zip file and when I unzipped it using winzip last version
I had this message:
C:\Program Files\R\rw1080beta\doc\manual\refman.pdf
An error occured while trying to copy a file:
forkusam wrote:
Hi,
can someone please help me.
I will give a simple example of my problem.
p - function()
{
i - 1
sr - function(){
i-i+3
i- sqrt(i)
}
cat(i)
}
This is just an example. My main problem is defining
i like a global variable which I can use in the sub-
and main functions
Dear R-helpers,
I just installed R on a RedHat 9 machine and when I was trying add a
launcher on the panel to it, I could not find any R icon in png format.
Is there any available? Do I have it and I could not find it in my file
hierarchy?
Thank you for your help.
Carlos J. Gil Bellosta
Dear R helpers,
It is the first time I have to install R under Linux (Red Hat 9) and as
I was setting up the panels, I could not find any png icon to launch the
program. Does it exist and I have overlooked it? Can I get it somewhere?
Carlos J. Gil Bellosta
Sigma Consultores Estadísticos
Muhammad Subianto [EMAIL PROTECTED] wrote:
I am new learning R. Now, I have a data set like:
24,2,3,3,1,1,2,3,0,1
45,1,3,10,1,1,3,4,0,1
... with 3730 rows
I want to remove comma (,) in data set. The result like:
24 2 3 3 1 1 2 3 0 1
45 1 3 10 1 1 3 4 0 1
...
How can I do it.
64 matches
Mail list logo
