I just found out that this message got scrambled with other threads,
so I trying to re-send...
Dear R'ers,
I am trying to build a composite plot (with several plots in one
figure). I have tried, but I cannot use facetting, as I need to
customize each plot using grid.
Since all the plots are the
Dear friends - occurring in Windows R2.6.2
I am modeling physical chemistry in collaboration with a friend who has
preferred working in Excel. I used uniroot, and find a solution to a two
buffer problem in acid-base chemistry which I believe is physiologically
sensible. Using goal seek in Excel
Troels Ring wrote:
Dear friends - occurring in Windows R2.6.2
I am modeling physical chemistry in collaboration with a friend who has
preferred working in Excel. I used uniroot, and find a solution to a two
buffer problem in acid-base chemistry which I believe is physiologically
sensible.
Hi
Does anyone know how I might pick out diagonal elements of a matrix using a
vector?
If I create a matrix a:
a - matrix(c(1:16), 4, byrow=TRUE)
and I want to pick out the elements (1,1),(2,2),(3,3), or another arbitrary
diagonal (upper or lower), is there any way I can use a vector to do
On 4/12/2008 5:56 AM, Rory Winston wrote:
Hi
Does anyone know how I might pick out diagonal elements of a matrix using a
vector?
If I create a matrix a:
a - matrix(c(1:16), 4, byrow=TRUE)
and I want to pick out the elements (1,1),(2,2),(3,3), or another arbitrary
diagonal (upper or
On Sat, 2008-04-12 at 10:56 +0100, Rory Winston wrote:
Hi
Does anyone know how I might pick out diagonal elements of a matrix using a
vector?
If I create a matrix a:
a - matrix(c(1:16), 4, byrow=TRUE)
Not sure if this does all that you describe below, but:
diag(a)
and you can subset
Rory Winston wrote:
Hi
Does anyone know how I might pick out diagonal elements of a matrix using a
vector?
If I create a matrix a:
a - matrix(c(1:16), 4, byrow=TRUE)
and I want to pick out the elements (1,1),(2,2),(3,3), or another arbitrary
diagonal (upper or lower), is there any way I
Hi, I'm doing a stats project using R to work out the size of a t-test and
wilcoxon test depending on the distribution and sample size. I just can't get
it to work - I want to put my results from the function size() into an array.At
the moment I keep getting the error message:Error in
Hi again. I believe that I described the things bad before.
I want to make the analysis with a sample data (train.set) of dataset for
later see if the predictions adjust to the rest of data non selected with
the sample train.
Then, of the same form in glm:
library(nnet)
net -
This email isn't asking for assistance, but I thought R-help readers
would find it interesting. This week we offered a half-day
introduction to R for researchers at Augsburg University. The
response was astonishing. Although Augsburg has no medical faculty
and no engineers, there was
Dear Greg, dear all,
thank you for your reply!
To clarify, here is an example of what I want to do (but better, of
course!):
x- c(1,2,3,4,5)
y- 0:4
y2- c(0,0,7,8,9)
barplot(y ,ylim=c(-1,10), ylab=, xaxt=n,yaxt=n, main=)
axis(4,at=c(1,2,3,4,5,6))
text(6,2.9, 2nd y-axis, srt = 270,
Antony Unwin wrote:
This email isn't asking for assistance, but I thought R-help readers
would find it interesting. This week we offered a half-day
introduction to R for researchers at Augsburg University. The
response was astonishing. Although Augsburg has no medical faculty
and
Hello R list,
I have two matrices of identical dimensions, and I want to fit a
straight line for each pair of columns and plot the resulting lines.
I got it to work with a for loop, but there must be a better way,
n-5
N-10
data.x-matrix(1:(n*N),ncol=n)
data.y-matrix(1:(n*N) +
Hi again. I believe that I described the things bad before.
I want to make the analysis with a sample data (train.set) of dataset for
later see if the predictions adjust to the rest of data non selected with
the sample train.
Then, of the same form in glm:
library(nnet)
net -
The function in package nnet for 'Multinomial Logit Regression' is called
multinom() and not nnet(). You seem not to have used it, and therein lies
your error.
If you need more help, multinom() is support software for a book (see
library(help=nnet)), and the book has extensive worked
List,
I am having trouble locating documentation on how one extracts posterior
variances of the random effects from an lme object. I have found equivalent
documentation for lmer(using ranef()), but nothing for lme. Any help would be
greatly appreciated!
Sam
--
Note the new
Type ?par at the command line to bring up the help page, then scroll down and
read the sections on xpd and usr.
From: Edwin Sendjaja [mailto:[EMAIL PROTECTED]
Sent: Fri 4/11/2008 9:56 PM
To: Greg Snow; r-help@r-project.org
Subject: Re: [R] Legend position
Barplot is probably not the best way here (it is possible, but more work than
it is worth).
Here is one approach that gives something similar to what you want:
plot(x, y, lend=1, lwd=25, ylim=c(-1,10), xlim=c(0.75,5.25),type='h',
col='grey')
lines(x, y2)
Is that good enough? or do you
Hello.
I'm solving ODEs in R. I need as many methods as possible,
so I downloaded the Fortran functions from http://www.netlib.org/ode/.
Then I created DLLs and dyn.loaded them to R. Problem is that
I don't know how to use them. I've been trying for many days
and can't solve it. So I would be
Hi all - my first time here and am having an issue with the Predict function.
I am using a tutorial as a guide, locate here:
http://www.ats.ucla.edu/STAT/R/dae/mlogit.htm
My code gives this error
newdata1$predicted - predict(mlogit,newdata=newdata1,type=response)
Error in
Does anyone know how to solve this. I am so desperate.
I'd be terribly grateful for any help.
Am Samstag, 12. April 2008 05:19:16 schrieb Edwin Sendjaja:
Hello,
I have got 2 Tables from different files:
Table 1 (lets say file: Salesman.data)
| ID | User_ID
Dear All,
I was looking for a package covering multivariate markov regime switch
models for non-observed regimes.
Is there anything out there?
Keywan
http://www.arasgallery.com http://www.arasgallery.com
--
View this message in context:
See
?merge
?match
for two different ways and do an RSiteSearch for those
to find examples in the archives
On Sat, Apr 12, 2008 at 12:19 AM, Edwin Sendjaja [EMAIL PROTECTED] wrote:
Hello,
I have got 2 Tables from different files:
Table 1 (lets say file: Salesman.data)
|
Jaroslav Urbánek wrote:
Hello.
I'm solving ODEs in R. I need as many methods as possible,
so I downloaded the Fortran functions from http://www.netlib.org/ode/.
Then I created DLLs and dyn.loaded them to R. Problem is that
I don't know how to use them. I've been trying for many days
and
Try
mapply(function(x,y)lm(y~x),as.data
.frame(data.x),as.data.frame(data.y),SIMPLIFY=F)
2008/4/12, baptiste Auguié [EMAIL PROTECTED]:
Hello R list,
I have two matrices of identical dimensions, and I want to fit a
straight line for each pair of columns and plot the resulting lines.
I got it
Dear Greg,
thank you again for your help.
The graph looks much better now. However, I need the bars to be assigned to
the left y-axis, and the lines should be assigned to the right y-axis (the
y-axes have different ranges,e.g. left y-axis 0-20, and right y-axis 0-1).
Also would be nice if the
Dear R users.
I have data observed on the surface of a torus, and
am trying to fit the nonlinear regression using
the geodesic equation on a torus. Could anyone give
me a helpful advise on this problem? I would
definitely appreicate your reply.
Sincerely,
On Sat, Apr 12, 2008 at 1:06 PM, Biago [EMAIL PROTECTED] wrote:
Hi all - my first time here and am having an issue with the Predict function.
I am using a tutorial as a guide, locate here:
http://www.ats.ucla.edu/STAT/R/dae/mlogit.htm
My code gives this error
newdata1$predicted -
Dear R friends:
Sorry this might be a trivial question: I have about 8000 records with 11
variables in csv format. I did get it into R. head and tail all tell every
record is in the memory. However, when i tried to print it, only last 1000
records stay in the screen; the rest just gone
On Sat, 12 Apr 2008, john useast wrote:
John,
Do not hijack an existing thread to ask a new question.
You have replied to Hadley's reply to Biago and changed the subject line.
Instead, start a new thread unsing 'Compose' or whatever capability your
mail agent has to create a new message.
I
Dear all,
I'd like to use R to read in data from the web. I need some help finding an
efficient way to strip the HTML tags and reformat the data as a data.frame
to analyze in R.
I'm currently using readLines() to read in the HTML code and then grep() to
isolate the block of HTML code I want from
Hi Ethan --
Use the XML library
library(XML)
url - 'http://www.nascar.com/races/cup/2007/1/data/standings_official.html'
xml - htmlTreeParse(url, useInternal=TRUE)
The previous line retrieves the html and stores it in an internal
represnetation. There are warnings, but I think these are
I wrote a little routine to convert multiple spss data files (as data frames)
to R data files. The code is as follows:
#
list=dir(pattern=.sav)
library(foreign)
for (i in 1:length(list)){
# The saved data frame will be dat
dat=read.spss(list[i],to.data.frame=TRUE)
The problem comes from fitting the model using a formula like this:
mlogit - vglm(bcsse$Active ~ bcsse$Impinteg + bcsse$Hsgradyr,
family = multinomial(), na.action=na.pass)
If you write the formula in that form, prediction will be virtually
impossible, because it will be looking for
?assign
I think this will work for you.
list=dir(pattern=.sav)
library(foreign)
for (i in 1:length(list)){
# The saved data frame will be dat
name=substring(list[i],1,nchar(list[i])-4)
assign(name, read.spss(list[i],to.data.frame=TRUE))
rname=paste(../R/,name,.rda,sep=)
#
?View
On Sat, Apr 12, 2008 at 5:47 PM, john useast [EMAIL PROTECTED] wrote:
Dear R friends:
Sorry this might be a trivial question: I have about 8000 records with 11
variables in csv format. I did get it into R. head and tail all tell every
record is in the memory. However, when i tried
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