Hi,
well, it is always a good bet to start with a small subset of your
data. Increase it and take a look what happens and how much memory it
takes (object.size() should give the size of the oject in memory, use
OS-tools to check the size of the whole process).
There may also be some OS-related
Hi,
I want to print real numbers in C code with different values for
digits. How to do that?
As I have understood, what I should do is to call
StringFromReal()
which calls FormatReal(), that one suggests the parameters (width,
decimal places and exponential form). FormatReal() includes
On Wed, 29 Jan 2003, Ott Toomet wrote:
I want to print real numbers in C code with different values for
digits. How to do that?
Use Rprintf or PrintValue. You'll need to work hard to convince me that
Rprintf is not adequate.
As I have understood, what I should do is to call
Hello!
I would like to use step() in a function because I have a list of responses
(independent!) with equal influence and want to apply stepwise regression on
each of them. So the function I just tested is the following:
fitlms - function(y,infl,formel=NULL){
if(is.null(formel)){
I am looking for help to analyze an unbalanced AB/BA cross-over design by
requesting the type III SS !
# Example 3.1 from S. Senn (1993). Cross-over Trials in Clinical
Research
outcome-c(310,310,370,410,250,380,330,270,260,300,390,210,350,365,370,310,380,290,260,90,385,400,410,320,340,220)
A new version of the CGIwithR package is now at CRAN. Version 0.40 has
the following improvements:
-- more comprehensive decoding of form data
-- images are no longer cached by browsers
-- buffering of the output page to avoid server/browser sync problems
Still for unix-like systems only.
On Wed, 29 Jan 2003 14:12:15 +1300,
Sam McClatchie (SM) wrote:
System info:
Mandrake 9.0
R Version 1.6.1
ESS 5.1.21
Emacs 21.2.1
---
Colleagues
I've been calling R-code embedded in my LaTex document using Sweave, but
would like to make things more
Hi,
Can be created an Array of 3 dimensions in R? How?
Tks,
Francisco.
^^
Francisco Júnior,
Computer Science - UFPE-Brazil
One life has more value that the
world whole
^^
__
I have the following problem. I have an automatically generated named
list with stringified names:
a - list(A=..., B=..., C=..., )
then I want to refer to the elements of the list, stored as an vector
of names:
nn - c(A, B, C), so that I could get list elements like
a$nn[1], a$nn[2], etc.
martin wolfsegger [EMAIL PROTECTED] writes:
I am looking for help to analyze an unbalanced AB/BA cross-over design by
requesting the type III SS !
# Example 3.1 from S. Senn (1993). Cross-over Trials in Clinical
Research
On Wed, Jan 29, 2003 at 01:07:52PM +0100, Serge Boiko wrote:
I have the following problem. I have an automatically generated named
list with stringified names:
a - list(A=..., B=..., C=..., )
then I want to refer to the elements of the list, stored as an vector
of names:
nn - c(A, B,
Hi,
try ?array.
So long, Winfried
On 29-Jan-03 Francisco do Nascimento Junior wrote:
Hi,
Can be created an Array of 3 dimensions in R? How?
Tks,
Francisco.
^^
Francisco Júnior,
Computer Science - UFPE-Brazil
One life has more value that the
Well if the base generator is to be changed, it might be a
good idea to consider implementing one of Marsaglia's really
long period generators. His latest, using titanic primes,
has a period of 2^131086. It is extremely fast. Even more
could be done, by replacing the two phase normal generator
by
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
AL == Andy Liaw Liaw writes:
AL Might I suggest taking a poll (even though
unscientific) of how many people
AL will be affected by a change in default RNG? My
totally arbitrary guess is
AL very few, if any.
But they
If you have a dominating density, ie another density, say g, such that cg(x)f(x) for
some coo and all x, then you can easily do this by rejection. See, e.g. Luc Devroye's
Springer book, which is the bible on this sort of thing
url:www.econ.uiuc.edu Roger Koenker Dept. of
Duncan Murdoch [EMAIL PROTECTED] writes:
On Tue, 28 Jan 2003 16:01:06 +, you wrote in message
[EMAIL PROTECTED]:
Dear R ers, if some can tel me how I can generate a sample from a given
density. I have a complex 2D density function en I want to genearte
a sample from it? Any
On 29 Jan 2003 16:28:57 +0100, Peter Dalgaard BSA
[EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]:
MCMC has big difficulty in generating *independent* samples.
That's true. For an IID sample, a rejection sampler (if you can do
the calculus) is usually more efficient. To get a a truly
With respect to the method used to produce
normals, Professor Ripley noted:
Were it not for concerns about reproducibility we would have switched to
Inversion a while back.
Presumably this refers to reproducibility across platforms.
I searched the archive and could find nothing on this
Simon Blomberg [EMAIL PROTECTED] writes:
One way would be to use the nls package:
library(nls)
# your y values
foo.dat - (0.83 * exp(-0.017 * 1:1000) + 0.5) + rnorm(1000,0,0.05)
# create some x values in a data frame
foo.dat - data.frame(cbind(foo.dat, 0:999))
names(foo.dat) - c(y,
Dear R-users,
I'm trying to recode a variable.
After using
cut(data.vector,breaks=my.breaks,labels=my.label)
I need the data.vector to have the same values as the labels.
To make it clear:
x-runif(10)
y-cut(x,breaks=c(0,0.3,0.7,0.9,1),labels=c(3,6,7,9))
as.numeric(y) returns something like a
cut returns a factor. Try something like
t1 - cut(data.vector, breaks = my.breaks, labels = my.label)
as.numeric(as.character(t1))
This is an issue that comes up frequently with factor. Take a look at the
help page for factor for some warnings.
Hope this helps,
Matt Wiener
-Original
Dear R-users,
I'm trying to recode a variable.
After using
cut(data.vector,breaks=my.breaks,labels=my.label)
I need the data.vector to have the same values as the labels.
To make it clear:
x-runif(10)
y-cut(x,breaks=c(0,0.3,0.7,0.9,1),labels=c(3,6,7,9))
as.numeric(y) returns something
Hi, how would I plot two series in the same plot, but with
two y-axes (one on the left and one on the right)? Would
this be possible? [The two series have quite different
y-values, so using the same y-axis for both is not possible.]
Thanks very much!
On Wed, 29 Jan 2003, Heberto Ghezzo wrote:
Hello, I think this qualify as a bug
x-c(1,2,3,4,NA,6,7)
mean(x)
[1] NA
mean(x,na.rm=T)
[1] 3.83
sd(x)
Error in var(as.vector(x)) : missing observations in cov/cor
sd(x,na.rm=T)
Error in sd(x, na.rm = T) : unused argument(s)
Heberto Ghezzo wrote:
Hello, I think this qualify as a bug
x-c(1,2,3,4,NA,6,7)
mean(x)
[1] NA
mean(x,na.rm=T)
[1] 3.83
sd(x)
Error in var(as.vector(x)) : missing observations in cov/cor
sd(x,na.rm=T)
Error in sd(x, na.rm = T) : unused argument(s) (na.rm ...)
var(x)
Error in var(x)
Under v1.6.2, Windows NT4 OS, when a function contains an execution error
and I have placed browser() in inside the function body, the call to browser
is ignored. A brief example to illustrate:
foo - function(x) {
+ y - x ^ 2
+ browser()
+ foo2(x) ## Intentional error
+ x ^ 3
+ }
people,
I'm using the pixmap library and method read.pnm() for to read figures and
it's
giving the following error:
Error in substr(inpstr, com1, stop = ns) :
evaluation is nested too deeply: infinite recursion?
I think that to be because of its size.
Am I correct?
Tks,
Francisco.
On Wed, 29 Jan 2003, Paul Gilbert wrote:
If reworking the RNG mechanism is considered seriously (and I am not advocating
that), I suggest:
1/ There should be a simple mechanism for keeping track of and resetting all the
information to generate random numbers, that is, seed, uniform
A multinomial logit model can be specified as a conditional logit
model after restructuring the data. Doing so gives flexibility in
imposing restrictions on the dependent variable. One application is
to specify a loglinear model for square tables, e.g. quasi-symmetry
or quasi-independence, as a
[EMAIL PROTECTED] writes:
That's what RNGkind and set.seed do, and have done for a long time.
The information is also stored in .Random.seed, but few users would record
that (and it does not exist until the first RNG is used).
.. but if you don't set the seed, you shouldn't expect
XLSolutions Corporation (www.xlsolutions-corp.com) is pleased to
announce a two-day R course, R Fundamentals and Programming
Techniques:
Houston, Tx February 21-22
Atlanta February 24-25
London, UK - February 27-28
Early bird registration:
Hello, another problem.
x-rep(1,10)
y-rep(c(1,2),c(5,5))
z-seq(1:10)
ab-data.frame(x,y,z)
#
now I want to do some work by the value of 'y'
by(ab,y,mean)
y: 1
x y z
1 1 3
y: 2
x y z
1 2 8
#
I do not want all the means, only the
(Please use a more informative Subject:, for example naming the package. I
haven't changed the Subject:, but it should be substr() error in
read.pnm)
On Wed, 29 Jan 2003, Francisco do Nascimento Junior wrote:
people,
I'm using the pixmap library and method read.pnm() for to read figures and
x-rep(1,10)
y-rep(c(1,2),c(5,5))
z-seq(1:10)
ab-data.frame(x,y,z)
tapply(ab$z,ab$y,mean)
1 2
3 8
---Original Message---
From: Heberto Ghezzo [EMAIL PROTECTED]
Sent: 01/29/03 03:24 PM
To: r-help [EMAIL PROTECTED]
Subject: [R] problems with by()
so, how can I get the function(x) to
people,
I'm using the pixmap library and method read.pnm() for to read figures and
it's
giving the following error:
Error in substr(inpstr, com1, stop = ns) :
evaluation is nested too deeply: infinite recursion?
I think that to be because of its size.
Am I correct?
Tks,
Francisco.
Hi,
i get error after using a data.frame with subset for sqlSave.
What can i do ?
It seems that lines like this in a data.frame structure are after subset
deleted and cause
the error ?
- attr(*, variable.labels)= Named chr CUSID Welle
Arbeitgeberfavorit1 Aktuelle Bewerbungssituation ...
The error is quite clear: the SQLexecute command failed. That's not an R
error, but an SQL error, so ask your DBMS helpline. For example, does
whatever DBMS this is support German labels? Does it support table names
like mno.x? Do you have permissions to create tables?
On Wed, 29 Jan
I noticed some very weird behaviour of the function: options(digits=n),
where n is the number of digits you would expect to get in R calculations.
Let's take a example:
options(digits=4)
getdata(caso.pool.k3.r3.e2)
[1] 6.053 2.641 -3.639 14.259 6.082
Which works fine... now,
Dear Bill,
Your example works fine for me with R 1.6.2 under Windows 2000. The
behaviour that you report should occur if you press RETURN at the browser
prompt, but that seems unlikely.
John
At 02:07 PM 1/29/2003 -0500, Pikounis, Bill wrote:
Under v1.6.2, Windows NT4 OS, when a function
Fernando Henrique Ferraz Pereira da Rosa [EMAIL PROTECTED] writes:
options(digits=4)
[1] 6.053 2.641 -3.639 14.259 6.082
[1] -0.03091 1.60310 -4.90588 5.07379 -0.04418
options(digits=2)
[1] -0.031 1.603 -4.906 5.074 -0.044
[1] 6.1 2.6 -3.6 14.3 6.1
What is going on?
On Wed, 29 Jan 2003, Heberto Ghezzo wrote:
Hello, another problem.
x-rep(1,10)
y-rep(c(1,2),c(5,5))
z-seq(1:10)
ab-data.frame(x,y,z)
#
now I want to do some work by the value of 'y'
by(ab,y,mean)
y: 1
x y z
1 1 3
Hi R developers:
I am collecting the elements to Build R on W2K.
But I found that the www.fptex.org link, lead me to www.dante.de site.
In this site I don't found where to download the fptex software.
And worst: ich spreche kein Deutch!!!
Danke sehr!
Get FPTeX from ctan.org
On Wed, 29 Jan 2003 19:55:27 -0500
Kenneth Cabrera [EMAIL PROTECTED] wrote:
Hi R developers:
I am collecting the elements to Build R on W2K.
But I found that the www.fptex.org link, lead me to www.dante.de site.
In this site I don't found where to download the
Hello, I am trying to run a PCA in R and I cannot get the PC scores for
each of the values. Using pcX - princomp(X) then loadings(pcX) I can get a
listing of the eigenvectors but not the actual PC scores for each value in
the dataset. I greatly appreciate any help anyone can offer
Thanks
Hi,
the function TukeyHSD gives incorrect results for balanced incomplete block
designs, as the example below shows, but I can only half fix it. There are
two problems,
1. It uses model.tables to estimate treatment means,
2. It uses the wrong standard error
The first problem can be fixed
Dear all
Is there any way of doing a Tukey HSD post-hoc test after a Kruskal-
Wallis or Friedman rank sum test (in the ctest package)?
Thanks in advance,
Albertus
Dr. Albertus J. Smit
Department of Botany
University of Cape Town
Private Bag Rondebosch
7700
South Africa
Tel. +27 21 689 3032
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