Hi,
The argument df of the function mca requires only a data.frame (not matrix)
containing only factors.
# Example:
?data.frame
library(MASS)
?mca
# we construct the matrix.
size - c(3,2,3,3,3,3,3,3,3)
texture - c(2,3,2,2,2,2,2,2,2)
leaf - cbind(size,texture)
new.mca - mca(leaf)
# Error
On 19-Dec-04 Frank E Harrell Jr wrote:
Henric Nilsson wrote:
How to fight this? I don't know. Right now I'm thinking, If you can
beat 'em, join 'em and that the way of proving that `some other'
software works is through having similar documents and tools as the
commercial vendors.
I'm in the process of researching problems with Excel. The references
given by Tim and Marc seem to lead to discussions of most of the problems
with statistical procedures in Excel. The executive summary is that if
it is in Excel and it looks like statistics, then avoid it.
However, there are
test - please disregard
Fredrik Lundgren
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[EMAIL PROTECTED] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Hello,
I'm verry new in R.
My Problem:
I have a PostgreSQL-Server with installed support for the R-Language.
And now I have a table with a Polygon like this:
test_db=# select * from geo where id=1;
id | koerper
+-
1 |
On 19-Dec-04 Tim Churches wrote:
Shawn Way wrote:
I've seen multiple comments about MS Excel's precision and accuracy.
Can you please point me in the right direction in locating information
about these?
As always, Google is your friend, but see for example
Joao:
The reported error message is not from e1071.
How *exactly* did you call svm()?
As to the documentation of the nu parameter: yes, this is an omission,
of course, nu is used in nu-regression as well; thanks for pointing this
out.
best,
David
-
Hello,
I am using SVM under e1071
(Ted Harding) wrote:
On 19-Dec-04 Tim Churches wrote:
Shawn Way wrote:
I've seen multiple comments about MS Excel's precision and accuracy.
Can you please point me in the right direction in locating information
about these?
As always, Google is your friend, but see for example
Note that an easy way to get them all to be factors is to add the
appropriate colClasses= argument to your read.table call:
leaf - read.table(...whatever..., colClasses = factor)
mca(leaf)
See ?read.table for more about the colClasses= argument.
Pierre BADY pierre.bady at univ-lyon1.fr
On 19-Dec-04 Andreas Kretschmer,,, wrote:
Hello,
I'm verry new in R.
Welcome!
My Problem:
I have a PostgreSQL-Server with installed support for the R-Language.
And now I have a table with a Polygon like this:
test_db=# select * from geo where id=1;
id | koerper
Please consider a data frame
A B C D
1 4 5 0
2 3 2 75
3 4 1 84
4 5 1 90
5 3 0 100
Is there a way to plot column B and C as barplot *and* D as line on the same
graph??
R-2.0.1 powered by
am Sun, dem 19.12.2004, um 13:40:32 - mailte Ted Harding folgendes:
Not sure what you mean by the installed plr - Language, but for
The Database-System PostgreSQL is ready to extend with external
features. As example: pl/r is a procedural language. So can I share data
between the database
I am posting this to both R and BioC communities because I believe there
is a lot of confusion on this topic in both communities (having searched
the mail archives of both) and I am hoping that someone will have
information that can be shared with both communities.
I have seen countless questions
Dear Karla,
I suggested last night that you send me further information, but decided
this morning to try out a reproducible example of my own:
set.seed(12345)
A - factor(sample(c(a1, a2, a3), 100, replace=TRUE))
B - factor(sample(c(b1, b2), 100, replace=TRUE))
C - factor(sample(c(c1, c2,
Landini Massimiliano wrote:
Please consider a data frame
A B C D
1 4 5 0
2 3 2 75
3 4 1 84
4 5 1 90
5 3 0 100
Is there a way to plot column B and C as barplot *and* D as line on the same
John,
Thank very much for your help. I think that I have figured out my
problem. The levels of one of my factors are 1 and 0. While this
didn't matter with the 'anova()' function, is does seem to alter the
results with the 'Anova' function. When I changed the levels to
letters, the tables
Dear all,
I have installed hexbin 1.1-4 package and cobbled together
the following function, cull, to eliminate xy points closer
than a specified resolution. While it appears to reduce the
congestion of points on a plot, I am surprised to see
overlapping points remain.
I would appreciate
Goal: adjust overlapping 'text' items in plot so they are legible
I have located 'space' as one possible technique for decluttering
text positions on a plot. I would rather not jitter the plot point, just
the text nearby.
Are there other techniques or functions available that declutters a plot
Dear Karla,
If indeed one of your factors has levels 0 and 1, that wouldn't matter
at all, but if it is a numeric variable with values 0 and 1 (rather than a
factor) then that would make a difference to the linear model that's fit to
the data. The difference doesn't affect the sequential (type-I)
Dear all
a couple of months ago i've found threads regard test that verify AnOVa
assumption on homogeneity of variances. Prof. Ripley advice LDA / QDA
procedures, many books (and many proprietary programs) advice Hartley's F_max,
Cochran's minimum/maximum variance ratio (only balanced
I'm looking at Pinheiro Bates Mixed-Effects Models in
S and S-PLUS at the moment. Several datasets are used,
one of which is called PBIB (a partially balanced
incomplete block design).
All the other datasets can be found somewhere or other in R.
However, I cannot locate PBIB, and it does not
Is it the PBIB dataset in the SASmixed package? I don't have my copy of the
text at home.
--Matt
library(SASmixed)
Loading required package: lme4
Attaching package 'lme4':
The following object(s) are masked from package:nlme :
Alfalfa Assay bdf BodyWeight Cefamandole
On 19-Dec-04 Landini Massimiliano wrote:
Dear all
a couple of months ago i've found threads regard test that
verify AnOVa assumption on homogeneity of variances. Prof.
Ripley advice LDA / QDA procedures, many books (and many
proprietary programs) advice Hartley's F_max, Cochran's
Thanks, Austin, I think that probably clears it up (see below).
On 19-Dec-04 Austin, Matt wrote:
Is it the PBIB dataset in the SASmixed package? I don't have
my copy of the text at home.
--Matt
library(SASmixed)
Loading required package: lme4
Attaching package 'lme4':
The
Thank you for the response. The suggestions are helpful. I would look into
the capabilities of the boot function. The solution in 8.3 is the last
resort that I was trying to avoid. Regards,
Ashraf
-Original Message-
From: Berton Gunter [mailto:[EMAIL PROTECTED]
Sent: Friday, December 17,
(Ted Harding) [EMAIL PROTECTED] writes:
For non-normal data, there's something of a question as to
what is meant (or, perhaps more accurately, what is intended
to be meant) by homogeneity of variance, as a test preliminary
to an analysis of variance.
Yes... If you use the test as a
On Wed, 2004-12-15 at 12:05, Ross Boylan wrote:
libR seems to include a main() function. Should it?
I think I've tracked this down, and it seems to be specific to R 1.9.
The 2.0 libR does not include main.
I believe main is present in 1.9 because the link line for libR includes
a reference to
I am trying to make a graph with 4 scatter matrixes plots and
couldn't do it. While trying to find a solution for this I also came
across the idea of giving different values to the same argument for
each of the lower and upper function but couldn't do it. (Examplified
below with the col
On 20 Dec 2004 at 1:11, Peter Dalgaard wrote:
(Ted Harding) [EMAIL PROTECTED] writes:
For non-normal data, there's something of a question as to
what is meant (or, perhaps more accurately, what is intended
to be meant) by homogeneity of variance, as a test preliminary
to an analysis of
(Ted Harding) wrote:
Thanks, Austin, I think that probably clears it up (see below).
On 19-Dec-04 Austin, Matt wrote:
Is it the PBIB dataset in the SASmixed package? I don't have
my copy of the text at home.
--Matt
library(SASmixed)
Loading required package: lme4
Attaching package 'lme4':
Mark,
there is a fdr website link via Yoav Benjamini's homepage which is:
http://www.math.tau.ac.il/%7Eroee/index.htm
On it you can download an S-Plus function (under the downloads link) which
calculates the false discovery rate threshold alpha level using stepup,
stepdown, dependence methods
Hi,
has anyonne experienced problems between the LaTeX beamer class and
Sweave? The following code does not work properly:
#
\documentclass{beamer}
\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{ngerman}
\begin{document}
\frame{
Hi Bernd,
I think it is because you are trying to place a chunk of R code within
a LaTeX command. I'm not sure that Sweave will be able to handle
that. In situations analogous to this I process the R chunk earlier in
my document and create an object that I then access in the LaTeX chunk
using
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