On Tue, 26 Oct 2004, Rob Steele wrote:
Is there a better way to express operations between matrices and column
vectors than transposing the matrix twice?
This is the kind of thing I'm talking about:
m = matrix(1:20, 3, 4)
Ouch: that gives a warning as 20 3*4.
v = colSums(m)
t(t(m)
On Tue, 26 Oct 2004, Martin Keller-Ressel wrote:
Hello,
what does the following error mean??
It occured during or at the end of a lengthy (and memory-intensive)
calculation using a routine from a shared library called via the '.C'
function:
Error in lazyLoadDBfetch(key, datafile,
[EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] writes:
Hi,
does anybody know why the following is not working:
hist(rnorm(200))
box(bty=o)
gives me a box without rounded corners.
Because that isn't what it is supposed to do. Did you expect 7 to
give you a slanting right edge? And which letter should
Robin Hankin wrote:
Hello list.
I very often need 3d scatterplots, and use scatterplot3D quite a lot.
I am trying to modify persp() to plot scatterplots, and make use of
the theta and phi arguments that persp() offers. I am having some
difficulty passing the correct arguments to persp().
Here is
Hi Christoph
I use this function to calculate an area under curve. It integrates
along the whole wavelength set or you can restrict the calculation
by setting dm and hm to some appropriate values.
It also gives you two values. The first is total area to the x axis
(y=0) and the second is
Hello,
I would like to have a function that retrieve matching strings in the same way as with
java.util.regex (java 1.4.2).
Example:
f('^.*(xx?)\\.([0-9]*)$','abcxx.785')
=
c('xx','785')
First of all: Is it possible to achiev this with grep(... perl=TRUE,value=TRUE )?
As I would call this
Sundar == Sundar Dorai-Raj [EMAIL PROTECTED]
on Tue, 26 Oct 2004 11:19:36 -0500 writes:
Sundar Christoph Scherber wrote:
Dear R users,
I have spectral data (say, wavelength vs. extinction coefficient) for
which I´d like to calculate an integral (i.e. the area
Jari Oksanen wrote:
On Wed, 2004-10-27 at 10:04, Uwe Ligges wrote:
Robin Hankin wrote:
Hello list.
I very often need 3d scatterplots, and use scatterplot3D quite a lot.
I am trying to modify persp() to plot scatterplots, and make use of
the theta and phi arguments that persp() offers. I am
Hi,
in which R-package I could find skewness and kurtosis
measures for a distribution?
I built some functions:
gamma1-function(x)
{
m=mean(x)
n=length(x)
s=sqrt(var(x))
m3=sum((x-m)^3)/n
g1=m3/(s^3)
return(g1)
}
skewness-function(x)
{
m=mean(x)
me=median(x)
s=sqrt(var(x))
sk=(m-me)/s
Dear R
I would like to predict x-values in a 4th order polynomial regression:
x - c(1:10)
y - c(2,7,19,49,89,94,97,98,92,89) # these are percentages
lm(y ~ x+I(x^2)+I(x^3)+I(x^4)-1) - lm1
now I would like to know what the model fit (x-value) for y=50 is. This
results in solving a 4th order
library (ellipse)
shape1 = c (1, 0, 0,1)
dim(shape1) = c(2,2)
ellipse (center = c(0,0), shape = shape1, radius = 1)
=
Error in plot.xy(xy.coords(x, y), type = type, col = col, lty = lty, ...) :
plot.new has not been called yet
It is really frustrating.
On Wed, 2004-10-27 at 11:11, Uwe Ligges wrote:
Jari Oksanen wrote:
On Wed, 2004-10-27 at 10:04, Uwe Ligges wrote:
This is a larger problem if
1. one of the underlying functions does not have ...
2. you want to relay arguments to two or more underlying functions, and
3. you
Vito Ricci wrote:
Hi,
in which R-package I could find skewness and kurtosis
measures for a distribution?
Both funcions are in package e1071.
Uwe Ligges
I built some functions:
gamma1-function(x)
{
m=mean(x)
n=length(x)
s=sqrt(var(x))
m3=sum((x-m)^3)/n
g1=m3/(s^3)
return(g1)
}
skewness-function(x)
Sebastian Leuzinger wrote:
Dear R
I would like to predict x-values in a 4th order polynomial regression:
x - c(1:10)
y - c(2,7,19,49,89,94,97,98,92,89) # these are percentages
lm(y ~ x+I(x^2)+I(x^3)+I(x^4)-1) - lm1
now I would like to know what the model fit (x-value) for y=50 is. This
results in
On Wed, 2004-10-27 at 11:34, Sun wrote:
library (ellipse)
shape1 = c (1, 0, 0,1)
dim(shape1) = c(2,2)
ellipse (center = c(0,0), shape = shape1, radius = 1)
=
Error in plot.xy(xy.coords(x, y), type = type, col = col, lty = lty, ...) :
plot.new has not
On Wed, 27 Oct 2004, Sebastian Leuzinger wrote:
I would like to predict x-values in a 4th order polynomial regression:
x - c(1:10)
y - c(2,7,19,49,89,94,97,98,92,89) # these are percentages
lm(y ~ x+I(x^2)+I(x^3)+I(x^4)-1) - lm1
now I would like to know what the model fit (x-value) for
Hi
Did you read what ellipse does and how it shall be used?
And what about your system, R and ellipse version?
From your example i got
ellipse (center = c(0,0), shape = shape1, radius = 1)
Error in ellipse.default(center = c(0, 0), shape = shape1, radius =
1) :
Argument x is
Hi everybody,
Could I consult one problem?
I want to access database with RODBC, first download this package from
http://www.microsoft.com/data/odbc as part of MDAC, the version is the newest version
2.7.0. But after I have installed this Package(RODBC) and run command
Thanks a lot. I added that line.
library(ellipse)
plot(-2:2, type='n')
shape1 = c (1, 0, 0,1)
dim(shape1) = c(2,2)
center1 = c(0,0)
radius1 = 1
ellipse (center1, shape1, radius1)
But now it said:
Error in ellipse(center, shape, radius) : dim- : dims [product 4] do not
match the length of object
Thank you. I found there are two ellipses
1.
R2.0
library (car)
2.
R1.9 and R2.0
library (ellipse)
And they are different! I can't run 1.
But the 2. is kind of specialized for t-distribution confidence and so on.
I need to find a general ellipse for an ellipse equation like
(x-x0)^2/a +
On Wed, 2004-10-27 at 12:04, Jari Oksanen wrote:
On Wed, 2004-10-27 at 11:34, Sun wrote:
library (ellipse)
Here's your problem! See below.
shape1 = c (1, 0, 0,1)
dim(shape1) = c(2,2)
ellipse (center = c(0,0), shape = shape1, radius = 1)
=
Error in
I apologize to the original contributor whom I have forgotten, but here is a
function that does what you wish. It is not mine and was contributed some
time ago. I saved it because it is so useful.
##
ellipse.fn - function(loc, cov, confidence = 0.95)
{
A - cov
Ivy_Li wrote:
Hi everybody,
Could I consult one problem?
I want to access database with RODBC, first download this package from
http://www.microsoft.com/data/odbc as part of MDAC, the version is the newest
version 2.7.0. But after I have installed this Package(RODBC) and
Found it!
Here is the original ellipse function:
--
From: Bishop, Lane[SMTP:[EMAIL PROTECTED]
Sent: Monday, November 13, 2000 4:05 PM
To: '[EMAIL PROTECTED]'; [EMAIL PROTECTED]
Subject:RE: [S] 95% ellipse region
Try this function:
ellipse - function(loc, cov, confidence
You are trying to use a package built for R 2.0.0 under R 2.0.0.
How you managed to do that we have no idea, as RODBC is not available on
http://www.microsoft.com/data/odbc! Almost certainly you got it from the
wrong place, from CRAN/bin/windows/contrib/2.0/, so please do read
the rw-FAQ and
Hi list,
I am having a problem in SJava. while loading the library I get the
folowing error.
library(SJava)
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
/usr/lib/R/library/SJava/libs/SJava.so:
libRSNativeJava.so: cannot open shared
On Wed, 27 Oct 2004 [EMAIL PROTECTED] wrote:
I am having a problem in SJava. while loading the library I get the
folowing error.
library(SJava)
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
/usr/lib/R/library/SJava/libs/SJava.so:
After a one-way anova, se.contrast computes the standard error of a
contrast, but not the value of the contrast itself. Wouldn't this be
useful? Am I missing something?
==
I.White
ICAPB, University of Edinburgh
Ashworth Laboratories, West Mains Road
Edinburgh
At 12:54 2004-10-26 -0700, Sandie Peters wrote:
[...]
Several questions:
1. Why do we get a different ANOVA answer when we switch the order of
the explanatory variables , e.g. ComponentA ~ Parent + Plot vs
ComponentA ~ Plot + Parent?
2. Why are the Sum Sq and F ratios calculated by this ANOVA
On Wed, 27 Oct 2004, I M S White wrote:
After a one-way anova, se.contrast computes the standard error of a
contrast, but not the value of the contrast itself. Wouldn't this be
useful? Am I missing something?
Compatibility with S, plus `does what it says on the box'. It was written
to make
Marc Mamin M.Mamin at intershop.de writes:
:
: Hello,
:
: I would like to have a function that retrieve matching strings in the same
way as with java.util.regex (java 1.4.2).
:
: Example:
:
: f('^.*(xx?)\\.([0-9]*)$','abcxx.785')
: =
: c('xx','785')
:
: First of all: Is it possible to
On Wed, 2004-10-27 at 08:34, Ale iberna wrote:
Hello!
I have two question that rose from trying to tacle the same problem in two
differnet ways.
What I want to do is to plot axes (only values or labels, no tick marks) in
such a way that 'cex' can be very small, text can be perpendicular
Have you tried the adj parameter in par as in
axis(side=3,at=0:100/100,labels=0:100,las=2,cex.axis=0.1, adj = 0.5)
?
Ale iberna [EMAIL PROTECTED]
Sent by: [EMAIL PROTECTED]
10/27/2004 09:34 AM
To: R-help [EMAIL PROTECTED]
cc:
Subject:[R] ploting
Hi Ales,
Think you might have made a typo, the parameter in par is srt not str,
hope that helps.
Regards,
Ian Smith
mangosolutions
Tel +44 118 902 6620
Fax +44 118 902 6401
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ale¹ ®iberna
Sent: 27 October
thank you Sundar,Andy, Partha for your prompt reply.
as for the %*% is matrix multiplication problem sunder here is a sample of
what i want...
x - rnorm(100,17,24) # X values
y - rnorm(100,7,11) # Y values
# since X and Y values are independent to get their
# covariance need to multiply
Kunal Shetty wrote:
thank you Sundar,Andy, Partha for your prompt reply.
as for the %*% is matrix multiplication problem sunder here is a sample of
what i want...
x - rnorm(100,17,24) # X values
y - rnorm(100,7,11) # Y values
# since X and Y values are independent to get their
#
Why the warning messages (2:4)?
x - rexp(1000,0.2)
fitdistr(x,exponential,list(rate=1))
rate
0.219824219
(0.006951308)
Warning messages:
1: one-diml optimization by Nelder-Mead is unreliable: use optimize in: optim(start,
mylogfn, x = x, hessian = TRUE, ...)
2: NaNs produced
On Wed, 27 Oct 2004, Kunal Shetty wrote:
thank you Sundar,Andy, Partha for your prompt reply.
as for the %*% is matrix multiplication problem sunder here is a sample of
what i want...
x - rnorm(100,17,24) # X values
y - rnorm(100,7,11) # Y values
# since X and Y values are
Hi,
I want to write the summary from a regression. I am doing this because I do not see a
way of get the std error, tvalues from the coefficients diagnostic. n$coef does not
give this only get the intercept and slope. I tried to use write and write.table and
got error in both cases. I
On Wed, 27 Oct 2004, De la Vega Góngora Jorge wrote:
Why the warning messages (2:4)?
The warnings are about your uninformed use of the function. You have read
the reference (as the R posting guide asks) haven't you?
You are trying to fit a distribution with parameter 0 by an
*unconstrained*
On Wed, 27 Oct 2004 [EMAIL PROTECTED] wrote:
Hi,
I want to write the summary from a regression. I am doing this because
I do not see a way of get the std error, tvalues from the coefficients
diagnostic. n$coef does not give this only get the intercept and slope.
I tried to use write
Hi
Jari Oksanen wrote:
On Wed, 2004-10-27 at 10:04, Uwe Ligges wrote:
Robin Hankin wrote:
Hello list.
I very often need 3d scatterplots, and use scatterplot3D quite a lot.
I am trying to modify persp() to plot scatterplots, and make use of
the theta and phi arguments that persp() offers. I am
[[alternative HTML version deleted]]
__
[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
Hi:
I want to integrate the following function with
respect to z, u is another argument in the
function. My program is a loop and in each loop the
argument u will be given a specified numeric values.
But how can I use the integrate function with u in
R?
The function is:
zfz-function(z,u)
{
Dear Mr. Fox:
Now I got things done using your ellipse in Package car! Just note to plot
an empty plot before calling ellipse. And input the correct radius and
covariance matrix (I input the inverse of the covariance matrix multiplied
by n as the covariance matrix, that was wrong. n should go to
Hi,
I'm running R 2.0 installed from the source port on FreeBSD 4.10
and I'm having some trouble installing the RandomFields package. Following
is the procedure and errors:
options(CRAN=http://cran.us.r-project.org;)
install.packages(RandomFields)
download snipped
downloaded 227Kb
*
Hi,
I'm running R 2.0 installed from the source port on FreeBSd 4.10
and I'm having trouble installing the GRASS package. Following is the
procedure plus errors:
options(CRAN=http://cran.us.r-project.org;)
install.packages(GRASS)
download snipped
downloaded 186Kb
* Installing *source*
Hello,
fBasics has functions for skewness and kurtosis:
Comments on these functions are welcome!
Diethelm Wuertz
# **
kurtosis =
function (x, ...)
{ # A function implemented by D. Wuertz
# FUNCTION:
UseMethod(kurtosis)
}
#
48 matches
Mail list logo
