Hi Chunhao,
I google the website and I found that there are three ways to perform
repeated measure ANOVA: aov, lme and lmer.
It's also a good idea to search through the archives.
I use the example that is provided in the above link and I try
Hi Yunlei,
Is your problem constrained or not?
If it is unconstrained and your matrix is not positive definite, the minimum is
unbounded (unless you are extremely lucky and the matrix is positive
semi-definite and the vector which multiplies the unknowns is exactly
perpendicular to all the
Tank you (Anna Mark) very much for this super information
Let me confirm that IF I want to perform the RM-ANOVA
I should use lmer and perform the post-hoc test by using glht, right?
Because I am not so familiar with lmer so I have two more questions.
Let me use that following example again,
1.
l == losemind [EMAIL PROTECTED]
on Tue, 29 Jul 2008 12:23:36 -0700 (PDT) writes:
l Hi all,
l In R GUI window, if you use up and down key, you will be able to
recall
l the previous and next command that has been used and stored in the
command
l history cache.
l But
have a look at
http://sunsite.univie.ac.at/rcom/server/doc/RExcel.html
regards,
PF
2008/7/30 losemind [EMAIL PROTECTED]:
Hi all,
How do I operate R from within Excel?
I mean, highlight a bunch of cells, and send to R, and do some statistics in
R, and return back the numbers and do some
Dear all,
I have a problem with constructing a nested loop.
I have two matrices:
pnr:
800 rows 14 columns
where rows are 40x20 meaning that 40 rows belong to one of twenty
objects in the matrix pnr
mvp:
20 rows and 14 columns
I want to:
calculate a distance value with the first 40 rows of
Hello,
What the tilde and dot means? I believe is something to do with formula, but
how do they work?
An example:
(fk5 ~ ., size = 10)
Do you know what the fk5 ~ . means?
Thank you!
Renata
-
Email sent from www.virginmedia.com/email
Virus-checked
Hi Chunhao,
If you carefully read the posting that was referred to you will see that
lme() and not lmer() was used as an example (for using with the multcomp
package). lmer() was only mentioned as an aside... lmer() is S4 and doesn't
work with multcomp, which is S3.
Apropos of specifying random
Hi - thanks for the advice - I am however applying this to the whole data
frame. And the code that I'm using is just to read in the data (using
read.table) and then the code that you supplied. I could send you the actual
dataset if you don't mind a file ~50MB?!
Thanks again,
Steve
Date:
Hi - thanks for the advice - I am however applying this to the whole data
frame. And the code that I'm using is just to read in the data (using
read.table) and then the code that you supplied. I could send you the actual
dataset if you don't mind a file ~50MB?!
Thanks again,
Steve
Date:
Hi,
I'm using the IDE Eclipse with the Statet-Plugin to develop R-code.
Is there a possibility to set breakpoints for debugging in R-script files
(just like in Java-code)?
Cheers,
Eli
__
R-help@r-project.org mailing list
Prof Brian Ripley wrote:
A patch to do this was posted on 2007-09-29 by Glenn Davis. Some people
not addicted to Matlab find the behaviour very inconvenient and prefer
the getline/readline behaviour (triggered by ^R/^S) of Rterm and R on
Unixen.
Now that you've mentioned readline, it
Hi
Can any body explain the meaning of the following R code
if(interactive())
stop(msg, call. = FALSE)
else
quit()
Thanks
K.Ravichandra
[[alternative HTML version deleted]]
__
R-help@r-project.org
can you write the bimodal gamma pdf?
if so create your own pdf:
dbigamma=function(x,alpha1,alpha2,beta1,beta2)
{
# ... the bimodal gamma pdf (I can't find it)
}
hist(x,probability=T)
curve(dbigamma(x,alpha1,alpha2,beta1,beta2))
and look at the result
regards,
PF
2008/7/29 Gundala Viswanath
Hello,
Can someone help me to understand the meaning of the following R line?
list(fk5 ~ .)
Thanks, Renata
-
Email sent from www.virginmedia.com/email
Virus-checked using McAfee(R) Software and scanned for spam
Here is the post where Prof Ripley is reffering to:
http://tolstoy.newcastle.edu.au/R/e2/help/07/09/26668.html
Bart
losemind wrote:
Prof Brian Ripley wrote:
A patch to do this was posted on 2007-09-29 by Glenn Davis. Some people
not addicted to Matlab find the behaviour very
Can someone help me to understand the meaning of the following R line?
list(fk5 ~ .)
fk5 ~. is a formula, most likely used by a regression (or similar model).
fk5 is the response variable, and the dot is a placeholder for 'whatever
was on that side of the formula before'. (This is usually
On Wed, 2008-07-30 at 00:49 -0700, Mark Difford wrote:
Hi Chunhao,
If you carefully read the posting that was referred to you will see that
lme() and not lmer() was used as an example (for using with the multcomp
package). lmer() was only mentioned as an aside... lmer() is S4 and doesn't
Can you at least send the output from the script so that we can see
exactly how you are reading in the data and then processing it. Doing
'str(yourData)' would help to understand what the data looks like.
The exactly error messages would also help. Is the data entirely
numeric, or does it also
I assume that it is testing to see if you are in the interactive mode
(typically using RGUI or Rterm) and not a batch file. If it is
interactive, it issues a 'stop' (this lets the person take action on
the problem). If in the batch, it just terminates the execution of
the script.
On Wed, Jul
What you need is chapter 9 in
http://cran.r-project.org/doc/manuals/R-intro.pdf . And you could also use
chapter 2, especially 2.2.
specdist -matrix(NA,nrow=40,ncol=20)
for (j in 1:40){
for(i in 1:20){
I have a xml exported by Manifold GIS but I'm not being able to import it
into R using XLM package.
The file have this structure:
?xml version=1.0 encoding=UTF-8 ?
- layout
nameLayout 2/name
pagesByX1/pagesByX
pagesByY1/pagesByY
- elements
legend refParent=r3
Hi,
I am trying to write a function which takes a formula as input and
outputs a new formula with a different response while keeping the rest
of the formula the same.
I.e.
respapply : ( y ~ a+b ) - ( f(y) ~ a + b )
I have tried the following but it doesn't work. The terms become
invalid
I am sorry I just found the stupid mistake.
I did not specify dec=, because I usually use .
Anyway thanks for having the opportunity to get help in this list.
B.
Birgitle wrote:
Hello R-User
I have a table as tab-delimited textfile (291 rows, 83 columns).
The first row are labels and
Table-read.table(Table.txt,header=TRUE,row.names=1, na.strings=NA
,colClasses = Classe82)
Fehler in scan(file, what, nmax, sep, dec, quote, skip, nlines,
na.strings, :
scan() erwartete 'a real', bekam '8,5'
Error in scan(file, what, nmax, sep, dec, quote, skip, nlines,
Hi all,
I have a large data.frame, 1530 observation with 6 columns. I want to
merge a 7th column, a transformation of the response variable (hospital
admissions), namely
trans-sqrt(copd$admissions+0.25)
trans-data.frame(trans)
And now when I do
copd2-merge(copd,trans)
(copd being my original
See
?formula
?terms.formula
or ask the author of the line (it doesn't make much sense to use '.'
unless you have a 'data' argument to pass to terms()).
On Wed, 30 Jul 2008, [EMAIL PROTECTED] wrote:
Hello,
Can someone help me to understand the meaning of the following R line?
list(fk5 ~
On Wed, 30 Jul 2008, [EMAIL PROTECTED] wrote:
Can someone help me to understand the meaning of the following R line?
list(fk5 ~ .)
fk5 ~. is a formula, most likely used by a regression (or similar model).
fk5 is the response variable, and the dot is a placeholder for 'whatever
was on that
On 30/07/2008 4:28 AM, [EMAIL PROTECTED] wrote:
Hi,
I'm using the IDE Eclipse with the Statet-Plugin to develop R-code.
Is there a possibility to set breakpoints for debugging in R-script files
(just like in Java-code)?
I believe the answer is no, but R does contain (some of?) the necessary
I have a large data.frame, 1530 observation with 6 columns. I want to
merge a 7th column, a transformation of the response variable (hospital
admissions), namely
trans-sqrt(copd$admissions+0.25)
trans-data.frame(trans)
And now when I do
copd2-merge(copd,trans)
(copd being my original
On Tue, 2008-07-29 at 11:28 -0500, Edna Bell wrote:
Hi again!
Suppose I have the following:
xy - round(rexp(20),1)
xy
[1] 0.1 3.4 1.6 0.4 1.0 1.4 0.2 0.3 1.6 0.2 0.0 0.1 0.1 1.0 2.0 0.9
2.5 0.1 1.5 0.4
table(xy)
xy
0 0.1 0.2 0.3 0.4 0.9 1 1.4 1.5 1.6 2 2.5 3.4
1 4 2
Hello R-Users, again me!
I have a data.frame with 291 rows, 82 columns.
Tha variables in the columns are factors, numerics and ordered factors.
The response variable is a factor with two levels.
I would like to find the best model by trying every possible variable
combination using a logistic
Its ok.
I've just read about update.formula in another message.
Paul
Paul Emberson wrote:
Hi,
I am trying to write a function which takes a formula as input and
outputs a new formula with a different response while keeping the rest
of the formula the same.
I.e.
respapply : ( y ~ a+b ) -
On Wed, Jul 30, 2008 at 12:24:22PM +0200, Philipp Pagel wrote:
If I understand correctly, all you want to do is add another column to
your data.frame. Unless I have overlooked something, a simple
assignement should do:
copd$trans - copd$admissions+0.25
Sorry, that should have been:
Hi there,
When I am using the png() function as the following to generate a png
file on Mac OSX Tiger, I found that the bit depth is 32. But I want a
24 bit depth png. What should I do?
png(filename=/Users/usg/Desktop/new.png)
plot(1:20)
dev.off()
To avoid using cairo, and R-2.7.0 does not
Hello,
I have calculated the fourier transform of the series enclosed at the end of
this message, by doing:
library(stats)
x - readLines(file1.txt)
x.num - as.numeric(x)
ft.x.num - fft(x.num)
My question is: why is the first value (Real) of ft.x.num that big?
(954.833870) all the other
On Wed, 2008-07-30 at 00:04 +0200, Jörg Groß wrote:
Is there an easy way to add a text into an R-plot and place it in the
upper left corner?
Like that:
| (a) |
| |
|
On 7/30/2008 7:15 AM, [EMAIL PROTECTED] wrote:
Hi Duncan,
thank you for your fast answering. Is there any function implemented in
R to stop it?
(something like q() but i only want to stop a script not shutdown the
whole R-console at a certain point)
That would be a good alternative for
Hi R,
Is there a function called dens in R? Is it similar to density? I
found this function in an RExcel demo... Or is it in a specific other
package? The function is used as (=rapply(dens,A11:A1010,100,D8,-5,5))
Thanks,
Shubha
This e-mail may contain confidential and/or privileged
Hi All,
It took me 30minutes to connect GNU R on Windows XP to a PostgreSQL database
running on the same machine and then generate the first graphics.
I've taken screenshots of all the steps and documented them here:
http://code.google.com/p/jwanalytics/wiki/GnuRe
Thanks for making it easy
Hi,
I have searched the archives and can't quite confirm the answer to this.
I appreciate your time...
I have 4 treatments (fixed) and I would like to know if there is a
significant difference in metal volume (metal) between the treatments.
The experiment has 5 blocks (random) in each
Hi All,
I guess it is also important to write when you did not have any problems doing
something.
This morning it took me 30minutes to connect GNU R on Windows XP to a
PostgreSQL database running on the same machine and then generate the first
graphics.
I've taken screenshots of all the
Hi R gurus
Im currently doing some GUI coding with the rpanel package. I have come
across a very interesting problem, how do I close a panel that I have
created. This sounds silly for I can always click the X up in the right
corner but how do I do it by code?
for example; when I create a control
Hi
I am trying to add density lines to multiple histograms created using R. I
have managed to get all 18 lines on the last histogram in the series,
however, i cannot figure out how to get each line appear on the correct
histogram plot. I know in Matlab there is a hold function, is there
Hi, I have been trying to create a function to generate a Procrustes plot,
generated from package vegan
in lattice.
standard vegan code as follows
library(vegan)
pro=protest(P1, P8, permutations=4999,choices=1:4)
plot(pro)
Now, here is the code for the function that I have failed to get to
Paulo Cardoso [EMAIL PROTECTED] writes:
I have a xml exported by Manifold GIS but I'm not being able to import it
into R using XLM package.
I can
library(XML)
xml - xmlTreeParse(tmp.xml, useInternal=TRUE)
xpathApply(xml, //component/@ymin, xmlValue)
[[1]]
[1] 0.32371064328183174
[[2]]
[1]
Hi,
I am now trying to use update.formula from within a function but I am
not able to get the result I want. Here is an example
f - function(fm, n) {
update(fm, n*. ~ .);
}
If I run
fm - formula( y ~ a + b )
f(fm,3)
n * y ~ a + b
Now when I try to use the formula, n does not exist.
Hi
I am trying to add density lines to multiple histograms created using R. I
have managed to get all 18 lines on the last histogram in the series,
however, i cannot figure out how to get each line appear on the correct
histogram plot. I know in Matlab there is a hold function, is there
HI all,
Is that the best R link from within Excel currently?
Thanks!
Patrizio Frederic wrote:
have a look at
http://sunsite.univie.ac.at/rcom/server/doc/RExcel.html
regards,
PF
2008/7/30 losemind [EMAIL PROTECTED]:
Hi all,
How do I operate R from within Excel?
I mean,
Prof Brian Ripley wrote:
A patch to do this was posted on 2007-09-29 by Glenn Davis. Some people
not addicted to Matlab find the behaviour very inconvenient and prefer the
getline/readline behaviour (triggered by ^R/^S) of Rterm and R on Unixen.
On Tue, 29 Jul 2008, losemind wrote:
whats the license policy of using r as a SaaS with other apps, priced for a
fee. I am not sure which license to invoke.
regards,
ajay
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
L.S.,
With the code below,
on the Windows screen the line types in the key show
as solid and dashed as in the graph,
and in the pdf file they show
as solid in the key and solid and dashed in the graph.
I would not expect that,
but may be I get something wrong.
Gerrit.
---
Ok,
I reach this with
setwd(E:/MBayRNP/output)
xml.mfd-xmlTreeParse(myfile.xml)
str(xml.mfd$doc$children$layout)
and get this:
layout
nameLayout 2/name
pagesByX1/pagesByX
pagesByY1/pagesByY
elements
legend refParent=r3 xmax=0.54156171284634758
xmin=0.020151133501259435
Hi,
does anyone know of a function to calculate odds ratios in multiway
tables (stratified) (+ the other usual statistics involved)
i mean:
say we have a table r*c*d,
For every d (depth) we have a r*c table,
and in this table the odds ratio's are calculated for every 2*2 subtable
in it.
#ts with a freq=1
d - ts(x)
#it seems that this is an oscillating signal of ~ a day
plot(d)
#spectrogram which shows that the main frequency component is ~ 0.7. this
translates to about a day (1.3 or so)
sec.pgram(d)
On Wed, Jul 30, 2008 at 7:14 AM, [EMAIL PROTECTED] wrote:
Hello,
I have
Gary W g.watmough at gmail.com writes:
Hi
I am trying to add density lines to multiple histograms created using R. I
have managed to get all 18 lines on the last histogram in the series,
however, i cannot figure out how to get each line appear on the correct
histogram plot. I know
on 07/30/2008 08:39 AM Ajay ohri wrote:
whats the license policy of using r as a SaaS with other apps, priced for a
fee. I am not sure which license to invoke.
regards,
ajay
See this post:
https://stat.ethz.ch/pipermail/r-help/2008-June/165906.html
HTH,
Marc Schwartz
Hi R users
I try to use the lme but I can´t!
My script is (some words in french, sorry!!):
rm(list=ls(all=TRUE)) #Efface tous les objets en mémoire pour éviter des
erreurs
library(MASS) #Chargement des Librairies
library(car)
library(Hmisc)
library(tkWidgets)
library(svDialogs)
Hi ben
Thanks for that, the density lines have now worked, however i was hoping
that the labels would be the names of the columns in my original data set
not numeric. any advice how to do this?
gary w
Ben Bolker wrote:
##find unique column names in table
Hi Marc,
many thanks, that is exactly what I was looking for.
Best, Sven
- Original Nachricht
Von: Marc Schwartz [EMAIL PROTECTED]
An: [EMAIL PROTECTED]
Datum: 29.07.2008 17:15
Betreff: Re: [R] Most often pairs of chars across grouping variable
on 07/29/2008 09:51 AM
The limit of use is that you cannot profit from it. It is Open Source.
From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Ajay ohri [EMAIL
PROTECTED]
Sent: Wednesday, July 30, 2008 9:39 AM
To: r-help@r-project.org
Subject: [R] R -Legality Question
Absolutely FALSE.
Read this FAQ and the following 3:
http://www.fsf.org/licensing/licenses/gpl-faq.html#DoesTheGPLAllowMoney
Let's not spread FUD.
Marc Schwartz
on 07/30/2008 08:50 AM Stevens, Martin Henry H. Dr. wrote:
The limit of use is that you cannot profit from it. It is Open Source.
Hi,
Stevens, Martin Henry H. Dr. wrote:
The limit of use is that you cannot profit from it. It is Open Source.
I am not sure what you mean exactly. If you mean that you can not earn
any money selling free software (in terms of the GPL2, which is R's
licence), this seems to be not the case:
Hi,
I have a data set (attached, and which I've asked about before)
containing countries, prices and dates. I am trying to find the mean and
median (by country) percentage change of each price change. For example:
Date Australia
6/30/07 2
3/31/07
now which license to use?
it is bad enough explaining SaaS (software as a service), and open
source and data mining to lawyers, without the experts fighting it as
well.
and who pays for the cloud computing expenses for me then if there is
no money in it. cloud computing doesnt exist in India
Hi Miki,
I just got the same problem with you couple hours ago.
Rusers (Anna, and Mark {thank you guys}) provide me a vary valuable
information.
link to following address.
http://www.nabble.com/Tukey-HSD-(or-other-post-hoc-tests)-following-repeated-measures-ANOVA-td17508294.html#a17559307
for
I have searched through the threads and Rprintf causing a build error
dosen't seem to be a problem for anyone else. And I've read through R
Extensions and An Introduction to the .C Interface to R and there doesn't
seem to be any troubleshooting for my problem.
My code is straight from An
on 07/30/2008 10:35 AM [EMAIL PROTECTED] wrote:
now which license to use?
it is bad enough explaining SaaS (software as a service), and open
source and data mining to lawyers, without the experts fighting it as
well.
and who pays for the cloud computing expenses for me then if there is
no
All,
I'm making some plots with the persp() function and am having trouble
sorting out the following:
- How does one avoid the axes label overlapping the tick values?
- Is doesn't seem possible to independently control the number of ticks of
the x,y, and z-axes, e.g., I'd like say only 4
That is a linker (not compiler) message, and you apparently forgot to link
against R.dll. See README.packages in the R distribution for how to use
VC++ with R under Windows (which is neither recommended nor supported).
Three other comments.
1) See the posting guide. R-devel is the list for
In this midst of all this debate, can I try a simple question?
Have the enforceability and/or interpretation of the GPL ever been
tested in court?
If so, then are there any references to where one can read about
the case (or cases)?
With thanks,
Ted.
well, i am planning to test rattle (r gui) or even R on a cloud computer.
IMO SAS (software ) scores over R because it handles bigger files more
efficiently on SAME local hardware. but prices a huge premium on
licenses.
with R and a cloud, you pay for time spent (1+profit P).
cloud ramps up
Hello,
I have a series and I need to run a Fourier Transform for that series.
I have done that using the function fft from stats package.
However I am not sure whether the result I am getting is correct or not. Seems
that the first value of the Fourier Transform list is the sum of all elements
At 08:44 30/07/2008, [EMAIL PROTECTED] wrote:
Hello,
What the tilde and dot means? I believe is something to do with
formula, but how do they work?
You are already half way there
?formula
should help you find out what ~ means
?update.formula
should help you find out what . means in the
Ted, yes, there were a couple of cases, both in Europe and
in the US. See more here:
http://www.softwarefreedom.org/
As far as I can remember, all lawsuits ended with an agreement,
and the publication of the source code, of course.
Best,
Gabor
On Wed, Jul 30, 2008 at 05:19:31PM +0100, Ted
On Wed, 2008-07-30 at 04:59 -0700, Andrewjohnclose wrote:
Hi, I have been trying to create a function to generate a Procrustes plot,
generated from package vegan
in lattice.
standard vegan code as follows
library(vegan)
pro=protest(P1, P8, permutations=4999,choices=1:4)
plot(pro)
Now,
Dear Lists,
There are many softwares (with many passionate adherents). Some of them are
very good upto say 2 million rows but lose steam after that despite having
very good focus in innovating algorithms.
Some of them are very good on same PC for much more data but become
comfortable with the
according to the documentation of the cast function in the reshape function,
I would expect this bit of code from the examples to calculate marginal
means over only the 'diet' variable.
#Chick weight example
names(ChickWeight) - tolower(names(ChickWeight))
chick_m - melt(ChickWeight, id=2:4,
On Wed, 2008-07-30 at 09:50 -0400, Stevens, Martin Henry H. Dr. wrote:
The limit of use is that you cannot profit from it. It is Open Source.
I think you mean you are unlikely to profit from it if you base your
business model on selling the product and the product is the code;
because it is GPL
Hello,
A newbie to R. I am trying to use the exonmap package in R.
According to the docs, the xmapDatabase() command should read the
config file with all the connection parameters and connect to the DB.
But i get the error shown below
xmapDatabase(Human)
Error in
On Wed, 2008-07-30 at 21:05 +0530, [EMAIL PROTECTED] wrote:
now which license to use?
Use whatever you or your company want to use. As long as it is in
compliance with GPL2 (as that is the licence R currently uses) then you
are fine. As to whether what you intend to do is in compliance with the
On Wed, Jul 30, 2008 at 11:47 AM, mfrumin [EMAIL PROTECTED] wrote:
according to the documentation of the cast function in the reshape function,
I would expect this bit of code from the examples to calculate marginal
means over only the 'diet' variable.
#Chick weight example
on 07/30/2008 08:48 AM Wim Bertels wrote:
Hi,
does anyone know of a function to calculate odds ratios in multiway
tables (stratified) (+ the other usual statistics involved)
i mean:
say we have a table r*c*d,
For every d (depth) we have a r*c table,
and in this table the odds ratio's are
I am purchasing a quad-core 64-bit system. My proposed configuration is an
intel core duo quad with 8Gb memory and an ubuntu OS. I'm choosing ubunto
because I have good local support, but it doesn't seem as well supported as
debian for R. Will ubuntu limit me in any significant way? I have
On Wednesday 30 July 2008, Gavin Simpson wrote:
On Wed, 2008-07-30 at 04:59 -0700, Andrewjohnclose wrote:
Hi, I have been trying to create a function to generate a Procrustes
plot, generated from package vegan
in lattice.
standard vegan code as follows
library(vegan)
pro=protest(P1,
Hi Miki and Chunhao,
Rusers (Anna, and Mark {thank you guys}) provide me a vary valuable
information.
Also see Gavin Simpson's posting earlier today: apparently multcomp does now
work with lmer objects (it's gone through phases of not working, then
working: it's still being developed).
I want the column that is never going to actually have the '(all)' level to
not become of type factor. continuing the example:
chick_m$diet = as.integer(as.character(chick_m$diet))
is.factor(chick_m$diet) #returns FALSE
is.factor(cast(subset(chick_m, time == 0), diet + chick ~ time, mean,
Le mer. 30 juil. à 13:04, Alan Swanson a écrit :
I am purchasing a quad-core 64-bit system. My proposed
configuration is an
intel core duo quad with 8Gb memory and an ubuntu OS. I'm choosing
ubunto
because I have good local support, but it doesn't seem as well
supported as
debian for R.
Hi Christian
I've been reading about daisy and think I need to do something like..
mydaisydata - daisy(mydata,metric=c(euclidean),stand=FALSE)
Error en vector(double, length) :
tamaño del vector especificado es muy grande(which means, specified
vector size is too big)
mydata is an anual
on 07/30/2008 12:54 PM Mark Kimpel wrote:
I'm running R on Linux and use emacs as my editor. When doing
edit(vignette(foo.vignette)) I would like to invoke emacs rather than the
default vi. I am able to manually set this by editing $R_HOME/etc/Renviron
but would like to avoid doing this with
Hi all,
I wish to do a random subset (i.e. 200 or 300 points) from a dataset, but I
don't find the right code in R.
Thanks for help
alessandro
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Just to let everyone know: John Chambers R book is no longer at
pre-order status on Amazon which is a good thing. The only problem
is that now it is temporarily out of stock. There must have been many
pre-orders so now I'm kicking myself for not having done that.
Mark
?sample
--- On Wed, 7/30/08, Alessandro [EMAIL PROTECTED] wrote:
From: Alessandro [EMAIL PROTECTED]
Subject: [R] Random subset
To: r-help@r-project.org
Received: Wednesday, July 30, 2008, 2:18 PM
Hi all,
I wish to do a random subset (i.e. 200 or 300 points) from
a dataset, but I
Hi Anna,
Thanks for your reply and suggestions. I'm trying something different, based
on regression this time, albeit giving similar problems. I want to regress a
single column in a matrix with each other column in the same matrix, and o/p
the intercept and slope coefficients to a results
Hi,
check
?sample
n - 200
mydata.set - rnorm(10)
my.random.subset - sample(x=mydata.set, size=n, replace=TRUE)
my.random.subset
I hope this helps,
Roland
Alessandro wrote:
Hi all,
I wish to do a random subset (i.e. 200 or 300 points) from a dataset, but I
don't find the right
Hi,
I find that a typical workflow for me looks something like this:
1) import some data from files
2) mess around with the data for a while
3) mess around with plotting for a while
4) get a plot or analysis that looks good
5) go back through my history to make a list of the shortest command
Hi all,
I have this string year and integer 2008 (both are inputs from the
user), and I would like to make a variable called year2008 that will store
a vector of numbers. Does anyone know how to do this?
Also, if the user later input year and 2008, how do I treat this as a
variable; how can
Well, in this case I don't think my original code would have helped much...
So, I've rewritten as below. I want to perform regression between one column
in a matrix and all other columns in the same matrix. I have a for loop to
achieve this, which succeeds in exporting intercept and slope
But probably you will need to set replace=FALSE if you want to sample
from your original data set without replacement.
Sorry for the possible confusion,
Roland
Roland Rau wrote:
Hi,
check
?sample
n - 200
mydata.set - rnorm(10)
my.random.subset - sample(x=mydata.set, size=n,
Hi --
Is there a way of detecting the exit code while calling system or pipe?
eg (on Unix)
system(perl -e 'print \foo\\\n\;exit(-1);')
foo
Any help appreciated,
Ranjan
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