Hi
I am trying to fit an svm to predict speech recognition errors. I am
using best.svm like this:
svm.model = best.svm(data[1:3000,1:23],data[1:3000,24],tunecontrol =
tune.control())
I got this:
print(svm.model)
Call:
best.svm(x = data[1:3000, 1:23], tunecontrol = tune.control(),
Thomas M. Parris writes:
clusplot reports that the first two principal components explain
99.7% of the variability.
[...]
loadings(pca)
[...]
Comp.1 Comp.2 Comp.3 Comp.4
SS loadings 1.00 1.00 1.00 1.00
Proportion Var 0.25 0.25 0.25 0.25
Cumulative Var
Bo Peng wrote:
Dear list,
I need to plot four almost horizontal lines with y-values around
1,3,4, 400. If I plot them directly, the first three lines will be
indiscernible so I am thinking of breaking y-axis into two parts, one
with range (0,5), another (395,400). Is there an easy way to do
Bo Peng wrote:
Dear list,
I need to plot four almost horizontal lines with y-values around
1,3,4, 400. If I plot them directly, the first three lines will be
indiscernible so I am thinking of breaking y-axis into two parts, one
with range (0,5), another (395,400). Is there an easy way to do
Pierre Kleiber wrote:
I want to use contourLines() to get contour line coordinate vectors, but
I don't want to make a plot. However contourLines() insists on
opening a graphics device. Is there a way tell it not to do this?
contourLines() calls .Internal(contourLines(...)), and that calls
Folks,
I'm in a situation where I do a few thousand regressions, and some of
them are bad data. How do I get back an error value (return code such
as NULL) from lm(), instead of an error _message_?
Here's an example:
x - c(NA, 3, 4)
y - c(2, NA, NA)
d - lm(y ~ x)
Error in lm.fit(x, y, offset
On 5/24/05, Ajay Narottam Shah [EMAIL PROTECTED] wrote:
Folks,
I'm in a situation where I do a few thousand regressions, and some of
them are bad data. How do I get back an error value (return code such
as NULL) from lm(), instead of an error _message_?
Here's an example:
x - c(NA, 3,
Hi.
I want to use image() with colours that are indexed by two variables.
Indexing by one variable is easy:
library(colorspace)
x - seq(from=0, to=1,len=30)
z - outer(x,1i*x,+)
image(Re(z),col=hcl(seq(from=0,to=100,len=15),c=100))
OK, so far so good. Now, I want the colour to be a more
Ross Boylan wrote:
On Mon, 2005-05-23 at 14:41 -0700, Ross Boylan wrote:
Finally, I'm a bit concerned that one article mentioned that S4
inheritance, in practice, is used mostly for data, not methods (Thomas
Lumley, R News 4(1), June 2004: p. 36). Am I going down a road I
shouldn't
On 5/24/05, Dr L. Y Hin [EMAIL PROTECTED] wrote:
Dear all,
I am using R 2.1.0 for Windows on XP SP2.
In a loop such as below, we can track the progress by a screen print display
as
below (in S):
for (i in 1:10){
print(paste(Starting simulation run no...,i))
take a look at rw-FAQ 6.13
I hope it helps.
Best,
Dimitris
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/16/336899
Fax: +32/16/337015
Web:
To me your answer is opaque (but that seems to be rather a problem of
language ;-) ). Perhaps my question has not been expressed clearly
enough. Let me state it differently:
In the R package e1071 the formulas (implicit) used are (3) and (4) (see
below), the standard deviation used in these
I'm sorry, but my previous message, as often happens, some brackets were
wrong:
Here are the correct formulas:
sd = 1/n * sum((x-mean(x))^2) # (1)
sd = 1/(n-1) * sum((x-mean(x))^2) # (2)
This also occured in the last paragraph.
Dirk
*
Dr.
Stephen:
you need to supply the parameter ranges, your call did not tune anything
at all.
best.svm() is really just a wrapper for tune.svm(...)$best.model. The
help page for 'tune()' will tell you more on the available options.
HTH,
David
[...]
svm.model =
Duncan Murdoch wrote:
Ross Boylan wrote:
On Mon, 2005-05-23 at 14:41 -0700, Ross Boylan wrote:
Finally, I'm a bit concerned that one article mentioned that S4
inheritance, in practice, is used mostly for data, not methods (Thomas
Lumley, R News 4(1), June 2004: p. 36). Am I going
Deepayan Sarkar wrote:
On Monday 23 May 2005 09:48 pm, Patrick Connolly wrote:
I've used packages for some years now and seldom had any trouble using
the tgz files. Now I've come across something I've never seen before.
version
_
platform i686-pc-linux-gnu
arch i686
os
Hello,
I'm having an error message when I try to load the som library from a cgi.
I call the library function setting the path to the library directory:
library(som, lib.loc=/usr/local/lib/R/library/)
When I run my script via web the following error appears in the apache log:
Error: package
hey,
about two weeks ago i posted a question concerning the display of two
piecharts on one plot. after now being able to do so, i need to rotate
them. the first piece of my pie is suppose to start at 0° but at 90°. i
tried several things, all failing in the end. anyone out there who has
an
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PayPal account.
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your account, please contact PayPal customer service at:
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You might want to look at grid graphics and gridBase. I don't know in
detail how to go about what you are asking, but grid allows you to
rotate plots arbitrarily. Here are a couple of links that I think are
useful.
http://www.stat.auckland.ac.nz/~paul/grid/grid.html
Dear All,
I've tried to sum columns -- different species of flowers, fruits plus twigs --
with NAs to get litterfall/trap, and then after use litterfall to calculate
production (litterfall (grams)/ hectare/ day. But R 'sees' litterfall/trap as a
string.
My question: How to use basic
On Mon, 23 May 2005, Ross Boylan wrote:
On Mon, 2005-05-23 at 14:41 -0700, Ross Boylan wrote:
Finally, I'm a bit concerned that one article mentioned that S4
inheritance, in practice, is used mostly for data, not methods (Thomas
Lumley, R News 4(1), June 2004: p. 36). Am I going down a
Simple, all those functions, such as sum(), colSums(), colMeans(),
etc. have an argument called na.rm which you can set to TRUE to remove
NAs.
so try something like sum(X, na.rm=TRUE)
HTH,
Roger
On 5/24/05, Paulo Brando [EMAIL PROTECTED] wrote:
Dear All,
I've tried to sum columns --
Tom Mulholland has already pointed out that the plotrix package has an
axis.break() function that will draw the break symbol. Your problem is a
combination of plotting two disparate sets of data and getting the
y-axis right. The following is one way to do it, just be careful that
the ylim=
Hallo Uwe Ligges,
Ich habe Sie durch die Seite:
https://stat.ethz.ch/pipermail/r-help/2000-May/005313.html
gefunden und bräuchte Ihre Hilfe.
Mein Freund schreibt Diplomarbeit in R und Latex, doch er bekommt es nicht
hin, dass er in R einen String mit dem Backslash (einen Latexbefehl)
eingeben
Liaw, Andy wrote:
Use invisible(NULL) as the last line.
Or nothing at all, in which case the result of the last executed line
will be returned. If your function does plotting, the last line is
probably one of the graphics functions, and they typically return
invisible results.
Another
Kerstin,
first of all, this is the R-help mailing list and not the private
address of:
Hallo Uwe Ligges,
Furthermore, the official language on the list is English.
Ich habe Sie durch die Seite:
https://stat.ethz.ch/pipermail/r-help/2000-May/005313.html
gefunden und bräuchte Ihre Hilfe.
Dear All,
How do I read in multiple data frames or matrices in a
loop, e.g.
for (i in 1:n) {
channel - odbcConnectExcel(filenames)
file[i] - as.data.frame(sqlFetch(channel,
sheet))
}
I would like file[i] to be the name of the data.frame
(i.e. file[1], file[2], file[3],...etc) rather
Dear R users,
I would like to use sub- and super-script in axis labels. I assume this
is best done using Hershey symbols. When trying to find information on
using Hershey font symbols in axis labels, I came across the following
discussion thread:
You're almost there, use a list:
myfiles - list()
for (i in 1:n) myfiles[[i]] - etc
You can then get at your data frames with myfiles[[1]],
myfiles[[2]]... Or, if you prefer to combine them into a single data
frame (assuming they're similar),
allmyfiles - do.call(rbind,myfiles)
-Original
My last question to the R list is another example of asking too fast
before reading (sorry). But by the way and because it might be
interesting for others, an answer can be found in:
Joanes, D. N. Gill, C. A. (1998) Comparing measures of sample skewness
and kurtosis. Journal of the Royal
Hello,
I'm running a PB G4 with Mac OS 10.4.1. I have downloaded the latest
version R-2.1.0a.dmg. It appears that R does not work. It launches
itself, but the window never gets ready, there is written Loading R...
and a small progress wheel keeps turning indefinitely.
Could someone help or
On Tue, 2005-05-24 at 18:05 +0200, Guillaume Chapron wrote:
Hello,
I'm running a PB G4 with Mac OS 10.4.1. I have downloaded the latest
version R-2.1.0a.dmg. It appears that R does not work. It launches
itself, but the window never gets ready, there is written Loading R...
and a small
Dear All ,
How it is possible to trace a plot in a two dimension surface with more than 2
variables?
ps: library( rgl) is 3D
So many THANKS
-
[[alternative HTML version deleted]]
__
Hi Guillaume,
There is a R-SIG-Mac alias where many of these questions are being
addressed.
The most likely reason is that you have a .RData file around that its
trying to load.
It might be missing a library or trying to connect to X11.
Can you check for that 1st in a terminal window (ls
I have a dataframe that contains fields such as patid, labdate, labvalue.
The same patid may show up in multiple rows because of lab measurements on
multiple days. Is there a simple way to obtain just the first and last
record for each patient, or do I need to write some code that performs
If you have your data.frame ordered by the patid, you can use the
function rle in combination with cumsum. As a vector example:
a - rep(c('a','b','c'),10)
a
[1] a b c a b c a b c a b c a b c a
b c a
[20] b c a b c a b c a b c
b - a[order(a)]
b
[1] a a a a a a a a a a b b b b b b
b b b
I think by() is simpler:
by(yourframe,factor(yourframe$patid),function(x)x[c(1,nrow(x)),])
-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
The business of the statistician is to catalyze the scientific learning
process. - George E. P. Box
-Original
On Tue, May 24, 2005 at 07:07:07AM -0400, Duncan Murdoch wrote:
Ross Boylan wrote:
On Mon, 2005-05-23 at 14:41 -0700, Ross Boylan wrote:
Finally, I'm a bit concerned that one article mentioned that S4
inheritance, in practice, is used mostly for data, not methods (Thomas
Lumley, R
Is anyone working on an S4 classes for dummies book/paper/package?
If so, please contact me off-list.
best,
-tony
Commit early,commit often, and commit in a repository from which we can easily
roll-back your mistakes (AJR, 4Jan05).
A.J. Rossini
[EMAIL PROTECTED]
Jeff D. Hamann [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
After trying to find if there was a color picker in the FAQs and the help,
I thought I would send a post here. I was overwhelmed with all the
wonderful color choices R has predefined (discovered after typing in
colors())
Hi
This is possbible to read AREMOS file with read.table function. The AREMOS
format come from DRI-WEFA and is uses with Eviews
Thanks
***
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On Tue, May 24, 2005 at 06:27:56AM -0700, Robert Gentleman wrote:
Duncan Murdoch wrote:
Ross Boylan wrote:
On Mon, 2005-05-23 at 14:41 -0700, Ross Boylan wrote:
Finally, I'm a bit concerned that one article mentioned that S4
inheritance, in practice, is used mostly for data,
I am having trouble in Sweave with input line lengths. For example, I may have
in my input file the chunk
=
BrainSections -
levels(AggData$sctn)[grep(
(^BRAIN)|(^WHOLEBRAIN)|(LEFT HEMISPHERE)| (HALFBRAIN),
levels(AggData$sctn))]
@
This is translated in the
Frank E Harrell Jr wrote:
Uwe Ligges wrote:
Aric Gregson wrote:
On 5/17/05 21:44 Frank E Harrell Jr sent the following:
Aric Gregson wrote:
Hello,
I am trying to use the following to output a table to latex:
cohortbyagesummary - by(data.frame(age,ethnicity), cohort, summary)
w -
Hi,
I am trying to use Arial bold for labelling (font.lab =2), and use
the fixed-width Courier bold for axis. I will export the plot to .ps
format. I have been trying to use font.axis = 11, but that doesn't work
when I exported the plot to a .ps file.
I have been trying hard to read the help
I have a general question. Is there a setting that can be used for a
multiple line type? The situation is that I want a solid line between x
and y points but if the y point is missing, I want a dashed line type to
the next point. In other words, if point 1 to 2 exists, make that line
solid,
Reply to sender Reply to all Reply to folder Forward Move/Copy Delete
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window
From: McMurtry, Benjamin G.
To: '[EMAIL PROTECTED]'
Cc:
Subject:Table Help
Sent: 5/24/2005 4:33 PM
Hi -- I have searched the documentation and archives on graphing
capabilities in R for the past couple of hours, but I haven't been able
to find anything directly related to my problem.
I want to create a plot with several lines displayed on it. I want each
line to be displayed in a different
I have a very large table that I want to add some of the certain rows.
The table is as follows:
Username1 2
Username1 4
Username2 6
Username2 10
Username3 12
Username3 10
Username3 16
Etc
The data is sorted by Column 1 (Ie the username) then by columm 2 (The
numbers). I do not know how
On Tue, 24-May-2005 at 08:40AM -0500, Douglas Bates wrote:
| Perhaps I can add a bit more explanation. As Deepayan mentioned, the
| versions of the lme4 package are closely linked to the versions of the
| Matrix package. The R code for lmer is in the lme4 package but the
| corresponding C
Hi,
I have run mars() with the default degree=1, and have constructed
splines which are similar to what I would get from Salford System's
MARS. I then use these splines as potential predictors, along with
rpart( ) terminal nodes and other potential predictors, in logistic
regression in SAS.
see ?aggregate
Sean
On May 24, 2005, at 4:39 PM, McMurtry, Benjamin G. wrote:
Is there easy way using a feature like bind to sum all of collumn two
where
column 1 is the same?
__
R-help@stat.math.ethz.ch mailing list
the problem is how to use both courier bold font for axis and arial
bold font for labelling. If I use familiy = courier in postscript,
everything will become courier fonts ..
I noticed that in postscirpt help page, we can customize a family such as
family =
In traditional, or base graphics, see matplot, which does exactly what
you describe.
You can also look at lattice graphics, which will give you flexibility to
plot in a single panel or multiple panels.
Hope this helps,
Matt Wiener
-Original Message-
From: [EMAIL PROTECTED]
Hikel, Jerry wrote:
Hi -- I have searched the documentation and archives on graphing
capabilities in R for the past couple of hours, but I haven't been able
to find anything directly related to my problem.
I want to create a plot with several lines displayed on it. I want each
line to be
That's what i wound up doing -- i am totally new to R, so i wasn't sure
if there were an easy way of getting the min and max values of a data
frame, but i tried that and it worked out well. Thanks.
-Original Message-
From: Sander Oom [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 24, 2005
The dashed line can be added to the plot with a call to lines after
removing the NAs from your x/y vectors (I'm assuming 'missing' means NA).
plot(x,y,type='l')
lines(x[!is.na(y)],y[!is.na(y)],lty=2)
Vertical lines can be accomplished with segments.
norm
-Original Message-
From:
Hi
gridBase won't help here (grid can't rotate traditional graphics output).
I think you have to get your hands dirty on this one, but it's not too
hard. Here's a function pie90() which is a tiny modification of pie().
Does that do the trick?
pie90 - function (x, labels = names(x), edges
Great. Thanks a lot. That is exactly what I need.
Xiang
On Wed, 25 May 2005, Paul Murrell wrote:
Hi
Does this do what you want?
postscript(example.ps, fonts=c(sans, mono))
plot(1:10, axes=FALSE, ann=FALSE)
par(family=sans) # By default Helvetica which is like Arial
title(xlab=sans serif
Dear list,
I'm trying to do a set of generic functions do make contingency tables from
data.frames. It is just running nice (I'm learning R), but I think it can be
better.
I would like to filter the data.frame, i.e, eliminate all not numeric variables.
And I don't know how to make it:
On 5/24/05, Jose Claudio Faria [EMAIL PROTECTED] wrote:
Dear list,
I'm trying to do a set of generic functions do make contingency tables from
data.frames. It is just running nice (I'm learning R), but I think it can be
better.
I would like to filter the data.frame, i.e, eliminate all not
Hi
Robin Hankin wrote:
Hi.
I want to use image() with colours that are indexed by two variables.
Indexing by one variable is easy:
library(colorspace)
x - seq(from=0, to=1,len=30)
z - outer(x,1i*x,+)
image(Re(z),col=hcl(seq(from=0,to=100,len=15),c=100))
OK, so far so good. Now, I want the
Ross Boylan wrote:
On Tue, May 24, 2005 at 06:27:56AM -0700, Robert Gentleman wrote:
Duncan Murdoch wrote:
Ross Boylan wrote:
On Mon, 2005-05-23 at 14:41 -0700, Ross Boylan wrote:
Finally, I'm a bit concerned that one article mentioned that S4
inheritance, in practice, is used
If you want to obtain a data frame you can use the functions head and tail
like:
dat=data.frame(id=rep(1:5,3),num=rnorm(15), num2=rnorm(15))#Creates data
frame with id
last=do.call(rbind,by(dat,dat$id,tail,1))#Selects the last observation for
each id
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