Hi all,
I am kind of stuck of using Predict function in R to make prediction
for a model with continuous variable and categorial variables. i have
no problem making the model, the model is e.g.
cabbage.lm2- lm(VitC ~ HeadWt + Date + Cult)
HeadWt is a continuous variable, Date and Culte are
You seem to have omitted a left quotation mark in (2): %H:%M:%S.
Regards,
Yihui
--
Yihui Xie [EMAIL PROTECTED]
Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
Mobile: +86-15810805877
Homepage: http://www.yihui.name
School of Statistics, Room 1037, Mingde Main Building,
Renmin University of
You used variable names 'Date' and 'Cult' in lm2, but *different*
names 'Cultc52' and 'Dated16' for prediction.
Regards,
Yihui
--
Yihui Xie [EMAIL PROTECTED]
Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
Mobile: +86-15810805877
Homepage: http://www.yihui.name
School of Statistics, Room 1037,
Bonjour,
Est ce qu'il y a un package sous R qui permet de calculer la Kernel density
estimation en 2 dimensions
avec fentetre variable (calcul du bandwidth avec la méthode du kth nearest
neighbor) et possibilité d'ajouter des poids (weight)
j'ai cru savoir que le package locfit peut faire ceci
Dear R-ers,
I'm using R 2.7.1 Mac OS. What is the best way for update to 2.7.2 to
keep my previous libraries?
Fredrik
Fredrik Lundgren
[EMAIL PROTECTED]
Obs! Ny adress och mail
Engelbrektsgatan 31
582 21 Linköping
013 - 47 30 117
0706 - 86 39 29
Sommarhus:
Got me the Asus EEE PC 1000 (the one with the 8 and 32 GIG solid state
drives, and added a 4GiG SD for the swap space. Will add another Gig
of RAM for a total of 2). Threw the old (Xandros) Linux off and the
EEE specific Ubuntu 8.04.1 onto it. Got an atom Intel processor which
apparently has two
segun ogundimu wrote:
Hello R-users
Kindly assist me with the following plot problem in R-
My data looks like this (shortened because I have about 5000 observations).
dat - read.table(textConnection(Id Time Y
1 0 194
1 5.22 179
1 5.97 190
2 1.61 265
2 2.1 234
2 16.4 300
2
kerfuffle wrote:
hi folks,
this is driving me up the wall. Apologies for posting twice in the same
week, I'm writing up a thesis. I wish to color-code some dots in an xy
plot. I've got a csv file with various elements, one of which is the
color-key (with the header 'color'). If the
I'm Indeed grateful! The code did a perfect job.
regards.
--- On Sun, 10/5/08, Jim Lemon [EMAIL PROTECTED] wrote:
From: Jim Lemon [EMAIL PROTECTED]
Subject: Re: [R] Shadowed Plot
To: [EMAIL PROTECTED]
Cc: R-help@r-project.org
Date: Sunday, October 5, 2008, 3:31 AM
segun ogundimu wrote:
Load the 2.7.2 mini DMBG and install over the top. Finish and klaar.
el
On 05 Oct 2008, at 11:28 , Fredrik Lundgren wrote:
Dear R-ers,
I'm using R 2.7.1 Mac OS. What is the best way for update
to 2.7.2 to keep my previous libraries?
Fredrik
--
Dr. Eberhard W. Lisse \/
On 05-Oct-08 10:26:29, Dr Eberhard W Lisse wrote:
Got me the Asus EEE PC 1000 (the one with the 8 and 32 GIG solid state
drives, and added a 4GiG SD for the swap space. Will add another Gig
of RAM for a total of 2). Threw the old (Xandros) Linux off and the
EEE specific Ubuntu 8.04.1 onto it.
[OOPS! By oversight I perpetrated a show-stopper! (Overlooked
that I already had Hmisc loaded). Corrected below]
On 05-Oct-08 12:18:13, Ted Harding wrote:
On 05-Oct-08 10:26:29, Dr Eberhard W Lisse wrote:
Got me the Asus EEE PC 1000 (the one with the 8 and 32 GIG solid state
drives, and added
Dear list and Hadley,
The new plyr package seems to provide a clean and consistent way to apply a
function on several arguments. However, I don't understand why the following
example does not work like the standard mapply,
library(plyr)
df - data.frame(a=1:10 , b=1:10)
foo1 - function(a, b,
Em Sex, 2008-10-03 às 11:22 -0700, Spencer Graves escreveu:
Hi, All:
Is there a way in R to access a file / web site that requires
permission?
Consider for example the following:
readLines('http://www.r-project.org/', 4)
[1] !DOCTYPE HTML PUBLIC \-//W3C//DTD HTML
On Sun, Oct 5, 2008 at 8:02 AM, Auguie, Baptiste [EMAIL PROTECTED] wrote:
Dear list and Hadley,
The new plyr package seems to provide a clean and consistent way to apply a
function on several arguments. However, I don't understand why the following
example does not work like the standard
Hi Aaron!
I hope that my answer is not too late.
On Friday 30 May 2008 00:31, aaront wrote:
I need to estimate maximum tree crown radius and am looking for a package
to prepare stochastic frontier models in R. I have not found any package
references on Nabble R help, google, or R help. Any
I have a large matrix, each row of which needs lm applied. I am certain than
I read an article in R-news about this within the last year or two that
discussed the application of lm to matrices but I'll be darned if I can find
it with Google. Probably using the wrong search terms.
Can someone
On 05/10/2008 10:08 AM, Mark Kimpel wrote:
I have a large matrix, each row of which needs lm applied. I am certain than
I read an article in R-news about this within the last year or two that
discussed the application of lm to matrices but I'll be darned if I can find
it with Google. Probably
Ok, I give up: what's that supposed to look like?
I tried to replace makeNstr with paste(rep(..)) but got garbage.
(my own fault: I still like 10.3.9, so can't install a new enough
version of R to install the Hmisc package)
Carl
__
2008/10/5 Ted Harding [EMAIL PROTECTED]:
sexyNo()
How puerile. R should be used for serious purposes. Here is a plot
that shows a log-log-log feasible region symmetric about x=0, within a
sinusoidal left and right-bound envelope:
# set up plot
xrange=c(-15,15)
yrange=c(0,16)
In building a package, what are the settings in the package files or the
build commands that
determine whether the compiled HTML help windows have the window title
R Help for package foo vs. HTML Help?
I often have quite a few help files active, and it is much more
convenient to navigate among
Hi list,
I have data in a dataframe t1, with a column for different amounts
spent, a column what it was spent on, and a column with dates, from
which I create a new column with months.
Example:
amount - rep(c(10,20,30),3)
what - rep(c(food,books,cycling),3)
when -
Thanks - I wasn't thinking about it the right way, and I didn't know
where to focus my investigation of the examples.
Thank you very much for pointing me at the specific example that solved
my problem.
For others who might have the same question, that would be the part of
the example that
Sorry for the vagueness of my question, your interpretation, however, was
spot on. Correct me if I am wrong, but my impression is that apply is a more
compact way of a for loop, but that the way R handles them computationally
are the same. In the article I seem to remember, there was a significant
I've found a temporary workaround that may be useful to nail down the problem
(if problem there is),
If I quote() each additional argument to be passed to fun., everything works
fine:
df - data.frame(a=1:10 , b=1:10)
foo1 - function(a, b, cc=0, d=0){
a + b + cc + d
}
mdply(df, foo1,
Arrgh. I spent so long fiddling with this, and two minutes after I mail
to the list I find the solution.
barchart(xtabs(amount~month+what, data=t1),stack=F,auto.key=T)
(It took me a long time to discover the extended xtabs formula, and
before I had kept trying to combine xtabs with the | factor
Sorry, I missed the fact that Duncan had this solution as well at
the end of his response.
On Sun, Oct 5, 2008 at 1:31 PM, Gabor Grothendieck
[EMAIL PROTECTED] wrote:
In that case, using the example data from the prior response all you need
is:
coef(lm(t(mat) ~ x))
On Sun, Oct 5, 2008 at
Seems to work fine for me:
times - c(10:12:34, 14:23:15)
Ptime - as.POSIXct(strptime(times, %H:%M:%S))
Ptime
[1] 2008-10-05 10:12:34 GMT 2008-10-05 14:23:15 GMT
difftime(Ptime[2], Ptime[1], units='min')
Time difference of 250.6833 mins
You just have to be careful that all your times are
In that case, using the example data from the prior response all you need
is:
coef(lm(t(mat) ~ x))
On Sun, Oct 5, 2008 at 1:18 PM, Mark Kimpel [EMAIL PROTECTED] wrote:
Sorry for the vagueness of my question, your interpretation, however, was
spot on. Correct me if I am wrong, but my
Michael Friendly wrote:
In building a package, what are the settings in the package files or the
build commands that
determine whether the compiled HTML help windows have the window title
R Help for package foo vs. HTML Help?
Michael,
can you give an example for a page with title HTML
Uwe Ligges wrote:
Michael Friendly wrote:
In building a package, what are the settings in the package files or
the build commands that
determine whether the compiled HTML help windows have the window title
R Help for package foo vs. HTML Help?
Michael,
can you give an example for a page
You can also do it with ggplot2:
install.packages(ggplot2)
library(ggplot2)
qplot(month, weight = amount, fill = what, data=t1, geom=bar)
You can find out more at http://had.co.nz/ggplot2
(And you probably want to set the levels of the months so they don't
appear in alphabetical order)
Hadley
Hello,
I know this topic has been discussed already several times. Is it a
workable solution that emerged? I would like to place R graph in vector
format in an OpenOffice Writer document (solution working in Linux AND
Mac OS X AND Windows). I have tried to play with pstoedit to convert .ps
Philippe Grosjean wrote:
I know this topic has been discussed already several times. Is it a
workable solution that emerged? I would like to place R graph in vector
format in an OpenOffice Writer document (solution working in Linux AND
Mac OS X AND Windows). I have tried to play with pstoedit
when I tried to apply xlim, ylim, zlim functions to the
plot3d/decorate3d, inspite all the help documentation I got this
errormessage:
ERROR: could not find function xlim
Is it a bug or possibly my fault?
regards
tomas
__
R-help@r-project.org
Hi
Judith Flores wrote:
Hello,
I have a y-axis label that reads: S. schenckii yeast cells. The
part that reads S. schenckii needs to be in italic style, the rest
of the text is normal style. How can I specify the different font
styles for each part of the y-axis label?
You can use R's
Seems to work fine for me:
plot3d(x, y, z, col=rainbow(1000), size=2, xlim=c(-5,5))
It would help if you read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Since you did not post your code, I assume that there
Hello,
I have a shingle A and B. A has 5 levels and B has 4 levels.
Also, I have 8
levels of a factor C. I wish to xyplot( x ~ y | C *A *B,data=data),
I think this is how the lattice conditioning works:
If i'm not mistaken, all possible combinations of C,A,B
, a subset of the data
Greetings R-wizards:
For historical reasons I have filenames with the character â and have
successfully used \u00e2 in its place, with the hoped-for result on all my
on-screen plots.
However since R2.7.0 I have trouble with savePlot() when the file name
includes that character as it does in this
On 6/10/2008, at 6:32 AM, Tomas Lanczos wrote:
when I tried to apply xlim, ylim, zlim functions to the
plot3d/decorate3d, inspite all the help documentation I got this
errormessage:
ERROR: could not find function xlim
Is it a bug or possibly my fault?
(a) RTFM.
(b) Read the posting guide.
On 10/5/08, Saptarshi Guha [EMAIL PROTECTED] wrote:
Hello,
I have a shingle A and B. A has 5 levels and B has 4 levels.
Also, I have 8
levels of a factor C. I wish to xyplot( x ~ y | C *A *B,data=data),
I think this is how the lattice conditioning works:
If i'm not
On Sun, 05 Oct 2008 19:32:41 +0200 Tomas Lanczos wrote:
TL when I tried to apply xlim, ylim, zlim functions to the
TL plot3d/decorate3d, inspite all the help documentation I got this
TL errormessage:
TL
TL ERROR: could not find function xlim
TL
TL Is it a bug or possibly my fault?
More
I am having issues with the following:
(muhat = 1/n^2(sum of all the xi's) )
essentially if xbar = the sample mean, muhat = sample mean but square the n.
Question:
Use R to run a Monte Carlo simulation which compares the finite-sample
performance of xbar and muhat. Specifically generate 1000
On Fri, 3 Oct 2008, Ubuntu.Diego wrote:
I'm trying to get some easy coding to reproduce the error. In the
meantime I have R code that run for 20 or more hours and suddenly i got
a segfault 'memory not mapped' error. I have to clarify that the error
not alway occurs and sometimes the process end
On 05-Oct-08 20:00:00, dilian wrote:
I am having issues with the following:
(muhat = 1/n^2(sum of all the xi's) )
essentially if xbar = the sample mean, muhat = sample mean but square
the n.
Question:
Use R to run a Monte Carlo simulation which compares the finite-sample
performance
One thing I have often done with code (including C and R) that
falls through the ice unexpectedly is to plant (as a temporary
measure) debug prints which emit information about where they
are in the program, how many times they have gone round a particular
loop, values of any potentially suspect
Hello,
thank You for Your reply. You are absolutely right, I am a bit tired,
forgot to attach the code. I am very sorry about that, as well as I did
not recognize that the error message came as a consequence of misstyping
the code, my fault again (a real guru maybe recognize this as a
I'm writing a new predict method and would like to be able to pass an
argument
called se via the ... mechanism. However, predict has a se.fit
argument that
wants to interpret my specification of se as a partially matched
version of se.fit.
Surely there a standard treatment for this
48 matches
Mail list logo
