Hi , i'm having trouble getting data from outside and
trying to do either a discrimination analysis or a
regression analysis.I don't know what kind of data i
need to use and also what are the packages i need to
use.
Please get me some direction so i can begin .
Hi,
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of matt lindon
Sent: Saturday, May 15, 2004 8:21 PM
To: [EMAIL PROTECTED]
Subject: [R] how to get data and post it on R
Hi , i'm having trouble getting data from outside and
trying to do either a
Hi all,
First of all thanks for the answers.
I'd like to add some objects to a plot.svm graphic.
To give a more precise idea here I make a simple example.
First I train a SVM.
m.svm - svm(status~., data = dati.svm,
kernel=radial, cross=20, scale=TRUE
)
Then I generates a
in order to know which production the custumer most like,i design a question as follow
:
Q:there are six production listed below.according to your preference,the production
you like most is_,the production you secondly like is ,and the third is_.
productionA productionB
On 05/16/04 00:23, vinkwai wong wrote:
in order to know which production the custumer most like,i design a question as follow
:
Q:there are six production listed below.according to your preference,the production
you like most is_,the production you secondly like is ,and the third is_.
Dear list,
I asked some questions about multilevelanalysis a couple of months ago. In the
meantime I did some reading about the subject. Now I'd like to check, if I
understood it all correctly. If you think my questions are not appropriate
for this list, please tell me so and i will immediatly
[EMAIL PROTECTED] (Felix Eschenburg) writes:
Dear list,
I asked some questions about multilevelanalysis a couple of months ago. In the
meantime I did some reading about the subject. Now I'd like to check, if I
understood it all correctly. If you think my questions are not appropriate
Andy;
Well, that about does it
I'm copying this one back to the list for the benefit of those who may hit
this thread while searching the archives. Your changes to the code run just
fine on the my Windows machine, but gives the vector length error on the G4
whether I'm using the OS X build
Hi,
I am trying to do parameter estimation with optim, but I can't get it to
work quite right-- I have an equation X = Y where X is a gaussian, Y is a
multinomial distribution, and I am trying to estimate the probabilities of
Y( the mean and sd of X are known ), Theta1, Theta2, Theta3, and
1. Have you considered parameterizing the problem in terms of
(Theta1, Theta2, Theta3), and then computing Theta4 -
(1-Theta1-Theta2-Theta3) in the function you ask optim to optimize?
2. Beyond this, I don't understand what you are trying to do. Do
you want to estimate a
IMHO Conjoint-Analysis and MarketSimluations -
there exist some nice extensions
for practical problems like
adaptive-conjoint-analysis ,
choice-based conjoint analysis etc.
christian
Am Samstag, 15. Mai 2004 18:23 schrieb vinkwai wong:
in order to know which production the custumer most
Hi Spencer,
Thanks for the reply.
1) When I was playing with optim before sometimes the probabilities came up
to be negative. I am not sure what I did before, but now it seems to work
correctly after I specify the lower and upper bounds on the Thetas using the
L-BFGS-B method in optim.
2) No
I gather you are trying to solve a system of 5 equations with 7
unknowns: The 5 equations are the constraint that the probabilities sum
to 0 plus the 4 equations I wrote? This is an underdetermined system,
and you should not need optim for that.
Why do you want a multinomial
Hi ,
i would like filter out all combinations of a data-mining result?
How i have to declare X because in every loop step it have another lengths ?
X - numeric(length(i1,...,i64)) ?
Many thanks
Christian
tres - function(data.frame) {
+ data - expand.grid(class02 = c(A,B,C,D), class04 =
X - numeric(length(data.frame))
before the loop maybe work, because
my computer works and works !?
christian
-- Weitergeleitete Nachricht --
Subject: filter out many data.frames
Date: Sonntag, 16. Mai 2004 00:02
From: Christian Schulz [EMAIL PROTECTED]
To: [EMAIL
On 05/15/04 16:53, Shin wrote:
I am looking for a function to restore saved graphics for further
editing, such as changing its title, labels, or legend.
How can I do it in R? Thanks in advance.
Probably the easiest way is simply to save the code that you used
to make the graphic, edit the code,
Is it so difficult to develop a function or an object to generate all the
code automatically in R?
Daehyok Shin (Peter)
Terrestrial Hydrological Ecosystem Modellers
Geography Department
University of North Carolina-Chapel Hill
[EMAIL PROTECTED]
We can do no great things,
only small things with
Could somebody advise me about importing a txt file as a frame? I am using the command:
test - read.delim (~/docs/perl/expr_ctx.txt2, header=T, sep = \t, row.names = 1)
This gives me an error because there are duplicate rows.
In the txt file, the columns are unique subjects and the rows are
Saving of the low level graphics that R displays can be
1. turned on with dev.control(displaylist=enable) and
2. turned off with dev.control(displaylist=inhibit).
recordPlot() can be used to save the display list in a variable.
For example:
# turn on display list, perform plot, turn off
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