Hello dear R-help members,
Very soon I am to give a lecture on R. And in that lecture I intend to move
between: par(mfrow = c(1,1)) to par(mfrow = c(1,2)) back and forth.
I anticipate this will damage the image proportions and will force me to
resize the window.
So far I have found it is possible
Dear useRs,
The package vars, implementing multivariate time series models VAR and
VECM, has been updated to version 1.4.7
The new changes are:
-the compatibility with the sandwich/lmtest package, which allows to use
heteroskedasticity consistent (HC) covariance estimators, to do
inference
Hello,
I'm trying to learn R (for fun!), and I've tried to find any previous
discussion of this problem (or something like it) and haven't found one.
When I run the following command, R seems to simply stop. I get no error
message, but I also have no ">" or "+" to type after (although I can
Anybody?
To: r-help@r-project.org
Sent: Tue, March 2, 2010 2:23:19 PM
Subject: bigglm Memory Issues
Hi all,
I'm somewhat of a novice in terms of programming, so I thought I'd come here to
seek some help with an issue I'm having.
[[elided Yahoo spam]]
Here
On Mar 2, 2010, at 9:15 PM, Herm Walsh wrote:
I am working with the combinations function (available in the gtools
package). However, rather than store all of the possible
combinations I would like to check each combination to see if it
meets a certain criteria. If it does, I will then s
I think there are several packages that implement combinations and several
that allow you to specify a function to be called when each vector of
combinations
is generated. I can't recall the names of all such packages, but the
Combinations package on www.omegahat.org/Combinations is one.
D.
Hello,
In the .R file I put in the tests directory, I have a number of cat("My text
here") type statements, that explain when a certain test completed
successfully but everything I tried so far (like putting sink(NULL) at the
top of the .R file) hasn't worked. Does someone know what to do here ?
write.csv(x, file=sprintf("prefix%05d.csv", n))
On 02-Mar-10 23:26, JWC wrote:
Hello,
I have some code to run on an XGrid cluster. Currently the code is written
as a single, large job... this is no good for trying to run in parallel. To
break it up I have basically taken out the highest lev
Hi Stephanie,
You can load() the data file:
load("/path/to/drosEmbryoRMA.rda")
or install the package as instructed:
install.packages("/path/to/drosEmbryo.tar.gz", repos=NULL) # linux or mac :-)
install.packages("/path/to/drosEmbryo.zip", repos=NULL) # windows :-(
Best,
Ista
On Tue, Mar 2, 201
I am trying to use these commands to load a package:
library(Biobase)
library(limma)
library(drosEmbryo)
data(drosEmbryoRMA)
The drosEmbryoRMA is .rda file. I have always loaded .txt files and I
have never heard of a .rda file and I can not figure out how to load
it. This file comes in a zip f
Tim Calkins-2 wrote:
>
> fortune('parse')
> --
> Tim Calkins
> 0406 753 997
>
Or would that be:
fortune( 106 )
?
-
Charlie Sharpsteen
Undergraduate-- Environmental Resources Engineering
Humboldt State University
--
View this message in context:
http://n4.nabble.com/turn-character-str
I am working with the combinations function (available in the gtools package).
However, rather than store all of the possible combinations I would like to
check each combination to see if it meets a certain criteria. If it does, I
will then store it.
I have looked at the combinations code but
hello,
i'am is new in R software.i have try to make a function but it can't give
what it should.i dunno what have to do next.
Can somebody help me to solve it.i'll very appreciate...
##GEV simulation(Non-stationary)
dsim<-function(n, alpha, beta,sca,sha){
t <- 1:n
location <- alpha + beta*t
inv.d
Hello R experts,
I am trying to analyze this dataset and am stuck on this problem for quite
some time now.
I am using mt.rawp2adjp.
the output that came out was a matrix with two colums since I had asked it
to calculate the adjusted p values using one method.
so it has the two columns as: rawp BH
Hello,
I have some code to run on an XGrid cluster. Currently the code is written
as a single, large job... this is no good for trying to run in parallel. To
break it up I have basically taken out the highest level for-loop and am
planning on batch-running many jobs, each one representing an in
Hi,
I am currently running the following negative binomial GLM:
glm89.nb <- glm.nb(AvGUD ~ Year*Trt*Micro + (0 + Micro/Trt/Year))
where Year has 3 levels, Trt has 2 levels, and Micro has 3 levels.
>From what I have read the above model has a 3 way interaction
(Year*Trt*Micro), and Micro is nest
I have a zoo object z
z
Value
2003-11-15 2.22
2003-11-17 2.26
2003-11-19 2.28
2003-11-22 2.54
2003-11-26 2.55
I wish to find the entry 2 entries before "2003-11-26". How do I do this?
I thought I might be able to say index(z["2003-11-26"]) and have it return 5
so I could then s
Maureen Ryan ucdavis.edu> writes:
>
> Hi R users,
>
> I am using the following model to analyze data from a factorial experiment
> (randomized complete block design with no replication within blocks):
>
> model <- glm(survival ~ density * vegetation + (1|block), data=sal2005,
> family="binomia
On Mar 2, 2010, at 8:01 AM, Paul Hiemstra wrote:
Brandon Zicha wrote:
Hey Paul,
Hey Brandon, (adding R-help in the cc)
I agree with you that the documentation of R could be better,
especially with more examples in code showing not only the common
cases, but also more esoteric cases. It w
Is R-PLUS free as R is?
Thanks,
On Tue, Mar 2, 2010 at 4:28 PM, s...@xlsolutions-corp.com <
s...@xlsolutions-corp.com> wrote:
> Welcome to R/ R-PLUS Webminar Series. R-PLUS 3.3 Rocks: Interactive,
> Comprehensible and Highly Visual.
> http://www.xlsolutions-corp.com/webminar.asp.
>
> March 12th @
Hi Sayan,
Just stumbled upon this email, three months old, since I was having
the same problem, and noticed you hadn't been answered. I was able to solve
this problem by noting that the "snow" library was not installed on the
nodes--it has to be installed everywhere.
So, you need to ssh
Thanks a lot All !
On Mon, Mar 1, 2010 at 12:22 PM, Walmes Zeviani
wrote:
>
> In complement to Dallazuanna's solution, use box.umbrella=list() inside
> par.settings() to change the default color and line type specification:
>
> bwplot(y~x, data=ex, pch="|",
> par.settings=list(box.rectangle
Thanks Deepayan !
On Sun, Feb 28, 2010 at 2:08 PM, Deepayan Sarkar
wrote:
> On Sat, Feb 27, 2010 at 8:14 PM, Peng Cai
> wrote:
> > Thanks a lot Deepayan, one question:
> >
> > Is it possible to place these barplots side-by-side instaed of super
> > imposing? Something like this:
> > http://www.i
Hi All,
I am looking for the exact same solution for times as for dates found in the
thread located here
http://www.mail-archive.com/r-help@r-project.org/msg84833.html
What I need is to merge specified data frame of seven 10 minute intervals
between 5:00 PM (17:00) and 6:00 PM (18:00)
5:00:00 PM
fortune('parse')
But if you have a vector of file names you can create a blank list and
read.table each file into a list. I generally find that if I'm reading a
bunch of files in at the same time they are probably related and I will end
up coming back and putting them all in to a list anyways.
f
On Tue, Mar 2, 2010 at 7:09 PM, Rob Forler wrote:
> Hi everyone,
>
> I have the following code that works in data frames taht I would like tow
> ork in data.tables . However, I'm not really sure how to go about it.
>
> I basically have the following
>
> names = c("data1", "data2")
> frame = data.f
Ralf B wrote:
>
> Hi R-fans,
>
> I would like put out a question to all R users on this list and hope
> it will create some feedback and discussion.
>
> 1) What are your 3 most useful R package? and
>
> 2) What R package do you still miss and why do you think it would make
> a useful addition
I think it depends on your particular domain, mine is in finance:
Quantmod
PerformanceAnalytics
And Diethelm Wuertz's collection of packages (fOptions, fPortfolio,etc)
Rgds,
C
On 3/2/10, Ralf B wrote:
> Hi R-fans,
>
> I would like put out a question to all R users on this list and hope
> it wil
On Tue, 2 Mar 2010, casperyc wrote:
[code]library(MASS)
x=c(rep(0,8096),
rep(1,1629),
rep(2,233),
rep(3,38),
rep(4,4)
)
x.bar=round(mean(x),4)
x.var=round(var(x),4)
p.hat=round(x.bar/x.var,4)
alpha.hat=round(x.bar*p.hat/(1-p.hat),4)
fitdistr(x, "Negative Bi
Hi everyone,
I have the following code that works in data frames taht I would like tow
ork in data.tables . However, I'm not really sure how to go about it.
I basically have the following
names = c("data1", "data2")
frame = data.frame(list(key1=as.integer(c(1,2,3,4,5,6)),
key2=as.integer(c(1,2,3
[code]library(MASS)
x=c(rep(0,8096),
rep(1,1629),
rep(2,233),
rep(3,38),
rep(4,4)
)
x.bar=round(mean(x),4)
x.var=round(var(x),4)
p.hat=round(x.bar/x.var,4)
alpha.hat=round(x.bar*p.hat/(1-p.hat),4)
fitdistr(x, "Negative Binomial")
fitdistr(x, "Poisson")[/c
On 3/03/2010, at 12:14 PM, Peter Ehlers wrote:
> On 2010-03-02 15:32, Rolf Turner wrote:
>>
>> On 3/03/2010, at 11:22 AM, Luis Felipe Parra wrote:
>>
>>> Hello I have a 2x10x200 matrix and I would like to bind to it another 2x10
>>> matrix in order to end up with an 2x10x2001 matrix, which comm
On 3/2/10, carol white wrote:
> How to turn a character string into an unevaluated R object? I want to load
> some
>
I'm not sure if this is what you're looking for:
> as.name("iris")
iris
> parse(text="iris")
expression(iris)
attr(,"srcfile")
> head(eval(as.name("iris")))
Sepal.Length Sepal.
On 2010-03-02 15:32, Rolf Turner wrote:
On 3/03/2010, at 11:22 AM, Luis Felipe Parra wrote:
Hello I have a 2x10x200 matrix and I would like to bind to it another 2x10
matrix in order to end up with an 2x10x2001 matrix, which command should i
use in order to do this? Thank you
(a) It's not a
Well, to be mathematically correct, you cannot choose random real
numbers for the simple reason that we don't even have names for all the
reals.
As all of you know (I hope :-) ), there are the same number (aleph-1) of
reals in any length line segment you wish. Aside from the unlikelihood
that
On 02/03/2010 5:42 PM, carol white wrote:
Hi,
How to turn a character string into an unevaluated R object? I want to load
some files in a directory into data matrix R objects. I could do this with
read.table and assign (see below). Then, I want to turn the character string
representing a file
Because you're binding on the last dimension, the default ordering of arrays
will do the job for you, so that the following works without abind():
## a1 is your 2 x 10 x 200 array
## m1 is your 2 x 10 matrix.
## Then the 2 x 10 x 201 array your want (note the 2001 typo in your note )
is:
NewArra
Hi,
How to turn a character string into an unevaluated R object? I want to load
some files in a directory into data matrix R objects. I could do this with
read.table and assign (see below). Then, I want to turn the character string
representing a file name (the evaluated expression of i) into an
On 3/03/2010, at 11:22 AM, Luis Felipe Parra wrote:
> Hello I have a 2x10x200 matrix and I would like to bind to it another 2x10
> matrix in order to end up with an 2x10x2001 matrix, which command should i
> use in order to do this? Thank you
(a) It's not a ***matrix***. Matrices are ***two***
Hi Ralf,
My list would probably be:
reshape + plyr
lattice / ggplot2
and maybe Car / Hmisc
BUT,
I think the real answer would come from further use of the community of:
http://crantastic.org/
(Or if that website could have collected and presented some data
automatically...)
Tal
---
If it is 3 dimensional then it is an array, not a matrix. The abind function
in the abind package is probably what you want.
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.s...@imail.org
801.408.8111
> -Original Message-
> From: r-help-boun...@r-
Hello I have a 2x10x200 matrix and I would like to bind to it another 2x10
matrix in order to end up with an 2x10x2001 matrix, which command should i
use in order to do this? Thank you
Felipe Parra
[[alternative HTML version deleted]]
__
R-help
Hi, I was having trouble developing a looping function in a selection
simulation that I'm trying to develop and I was hoping if someone could
help. Basically, I have a matrix with a random generated numbers
representing scores on the variables. The rows represent applicants and
columns represent t
Hello I have 2000 univariate timeSeries of about 20 observations each, as
the following, I would like to store all of them in one object, sort of a
data frame, and to be able to recall each by its column name, which by the
way is the same as the first date. Do you know how can I do this. Thank you
Welcome to R/ R-PLUS Webminar Series. R-PLUS 3.3 Rocks: Interactive,
Comprehensible and Highly Visual.
http://www.xlsolutions-corp.com/webminar.asp.
March 12th @ 12PM ET (USA Time)
Increase your productivity with R-PLUS 3.3 by attending the webminar and
learning how to:
1. Interactively clicki
Friends
Seems I've run into another snag. More of the nitty-gritty r-details I don't
understand.
So, as I mentioned below, dataset[[var_sub]] seems to be understood well by the
functions I previously used and I was able to run my loop successfully with the
[[var_sub]] as a variable-substitutio
Try this; specify where you want the second one to start:
files.a <- choose.files()
# now change to the directory of the first file name to continue search
files.b <- choose.files(paste(dirname(files.a[1L]), "*", sep='/'))
On Tue, Mar 2, 2010 at 12:17 PM, Caleb Rounds wrote:
> I have recently up
Hi Sebastian,
Here is an example showing a forest plot with some column headings:
library(metafor)
data(dat.bcg)
dat <- dat.bcg
res <- rma(ai=tpos, bi=tneg, ci=cpos, di=cneg, data=dat, measure="RR")
windows(width=6.5, he
On Tue, Mar 2, 2010 at 2:43 PM, Liaw, Andy wrote:
> In most implementations of boosting, and for that matter, single tree,
> the first variable wins when there are ties.
They must be in a union :-)
>> What happens if there's a third?
If they were P perfectly correlated predictors, the importanc
Hi R-fans,
I would like put out a question to all R users on this list and hope
it will create some feedback and discussion.
1) What are your 3 most useful R package? and
2) What R package do you still miss and why do you think it would make
a useful addition?
Pulling answers together for these
Hi R users,
I am using the following model to analyze data from a factorial experiment
(randomized complete block design with no replication within blocks):
model <- glm(survival ~ density * vegetation + (1|block), data=sal2005,
family="binomial")
Does R use a binomial distribution in this for
On 2/03/2010, at 9:02 PM, Noah Silverman wrote:
> Hi,
>
> I'm just learning about poison links for the glm function.
>
> One of the data sets I'm playing with has several of the variables as
> factors (i.e. month, group, etc.)
>
> When I call the glm function with a formula that has a factor
In most implementations of boosting, and for that matter, single tree,
the first variable wins when there are ties. In randomForest the
variables are sampled, and thus not tested in the same order from one
node to the next, thus the variables are more likely to "share the
glory".
Best,
Andy
Fro
On Mon, 01-Mar-2010 at 12:01PM -0500, Max Kuhn wrote:
|> In theory, the choice between two perfectly correlated predictors is
|> random. Therefore, the importance should be "diluted" by half.
|> However, this is implementation dependent.
|>
|> For example, run this:
|>
|> set.seed(1)
|> n <-
What I ended up using was:
cat(unclass(tmp))
--sundar
On Tue, Mar 2, 2010 at 8:58 AM, Berwin A Turlach wrote:
> G'day Sundar,
>
> On Tue, 2 Mar 2010 01:03:54 -0800
> Sundar Dorai-Raj wrote:
>
> > Thanks, Berwin. That works just great!
>
> You are welcome.
>
> I noticed by now that "cat(tmp)" i
Or better:
reshape(cbind(DF, value = 1), v.names = 'value', idvar = 'V1', timevar
= 'V2', direction = 'wide')
On Tue, Mar 2, 2010 at 3:49 PM, Henrique Dallazuanna wrote:
> Try this:
>
> DF <- read.table(textConnection("1 this
> 1 is
> 1 the
> 1 first
> 1 row
> 2 this
> 2 is
> 2 the
> 2 send
> 2
Jan -
Here's one way:
tbl = data.frame(id=c(1,1,1,1,1,2,2,2,2,2),
text=c('this','is','the','first','row','this','is','the','second','row'))
xtabs(~id+text,tbl)
text
id first is row second the this
1 1 1 1 0 11
2 0 1 1 1 11
It'
Hi everyone,
I am trying to find a way to calculate an adjacency matrix from a polygon
shapefile to make a CAR model in winbugs, but I would like to vary the order
of neihborhood. I used the the spdep package to create an adjacency matrix
(in list format) of order 2 and it works
Try this:
DF <- read.table(textConnection("1 this
1 is
1 the
1 first
1 row
2 this
2 is
2 the
2 send
2 row"))
reshape(DF, v.names = 'V2', idvar = 'V1', timevar = 'V2', direction = 'wide')
On Tue, Mar 2, 2010 at 3:35 PM, Jan Hornych wrote:
> Hi all,
>
> I have a table in database that is very long
Hello together,
Is there a tool to test the statistical differences between parameter estimates
of an nlsList fit, with more than two groups? I am able to complete the nlme
function for two groups after getting starting paramaters in nlsList, as seen
below.
>fit.nlme <- nlme(rate ~ SSmicmen(con
I am trying to plot fitted lme values as a smooth line of a graph
showing the exponential relationship between temperature and soil
respiration.
In the plot, the x-axis has temperature, and the y-axis has soil
respiration. When I try to add a line showing temperature versus the
fitted va
Thank you gentlemen,
all three solutions are working and very insightful.
Your help and time is very much appreciated.
Alexander
On Tue, Mar 2, 2010 at 1:08 PM, Felipe Carrillo wrote:
> Like this?
>
> group<- c(1,1,1,1,2,2,2,2,2,3,3,3,3,3,3)
> var2<- c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15)
> da
Liviu Andronic escribió:
On Mon, Mar 1, 2010 at 11:49 PM, Liviu Andronic wrote:
On 3/1/10, Keo Ormsby wrote:
Perhaps my biggest problem was that I couldn't (and still haven't) seen
*absolute beginners* documents.
there was once a link posted on r-sig-teaching that would prob
Hi all,
I have a table in database that is very long and when simplified it has only
two columns in it (id, text). id is the row, and text is the column.
Technically the text is a term and and id is the document.
If simplifying this and assuming there is only one occurrence of the term
per the doc
-- Forwarded message --
From: Duncan Murdoch
Date: 25 February 2010 22:30
Subject: Re: [R] Building R packages in Windows 7
To: Eric Ferreira
On 25/02/2010 7:56 PM, Eric Ferreira wrote:
> Thank you, Sir, but how can I demand it to create HTML files?
>
The tools::Rd2HTML functi
Dear R users,
I would like to draw map and import it in maptools/spatstat packages.
The 'raw data' I have come from a web page (...) and are
basically a list of coordinates of a polygon.
I would like to know how to import them in R; I checked the maptools
packages, but all the examples use exist
Like this?
group<- c(1,1,1,1,2,2,2,2,2,3,3,3,3,3,3)
var2<- c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15)
data<-data.frame(group, var2)
data
ddply(data,"group",transform,ID=1:length(group))
Felipe D. Carrillo
Supervisory Fishery Biologist
Department of the Interior
US Fish & Wildlife Service
California,
William,
I agree that changing syntax can lead to problems. I don't, however think
extending the language will break existing code. Providing a common syntax for
accessing matrices and dataframes will not change the way things have been done
to date, but rather how things will be done in the fut
Try this:
data$ID <- with(data, ave(group, group, FUN = seq))
On Tue, Mar 2, 2010 at 2:53 PM, Alexander Schwall
wrote:
> Hello R community,
>
> I am hoping for some help with the following problem.
>
> I have a data frame containing various groups. These groups are identified
> by a grouping va
On 02/03/2010 11:53 AM, William Dunlap wrote:
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of John Sorkin
> Sent: Tuesday, March 02, 2010 3:46 AM
> To: Karl Ove Hufthammer; r-h...@stat.math.ethz.ch
> Subject: Re: [R] two que
Hello R community,
I am hoping for some help with the following problem.
I have a data frame containing various groups. These groups are identified
by a grouping variable. I would like to add a sequential ID number to each
group to later sort these individuals within each group by this ID number.
Ah, I should have mentioned this. Personally I work on Macs (Leopard)
and PC's (XP Pro and XP Pro x64). Even though the PC's do have Cygwin,
I'm trying to make this code portable. So I want to avoid such things as
sed, perl, etc.
I want to do this in R, even if processing is a bit slower. Event
Dear R-community,
I'm currently trying to assemble a forest plot using the "forest" function
from package "metaphor".
Works well. Even the regular "main"-argument works for adding a title to the
graph.
However, I would like to add one top row which explains the nature of the
columns. Very
I tried to shoehorn the read.* functions and match both the fixed width and
the variable width fields
in the data but it doesn't seem evident to me. (read.fwf reads fixed width
data properly but the rest
of the fields must be processed separately -- maybe insert NULL stubs in the
remaining fields a
I have recently upgraded to R 2.10.1 on Windows XP and am using
scripts that I've used in previous versions successfully. I'm having a
problem with choose.files. The lines read:
fura_scan_file<-choose.files(caption="Select log file (*.log) for fura-2 scans")
PI_scan_file<-choose.files(caption="Sel
Hi,
On Tue, Mar 2, 2010 at 11:05 AM, Häring, Tim (LWF)
wrote:
>
>> > I`m using SVMs for multi-class classification problems. Therefore I`m
>> using the svm() function in the package "e1071".
>> > If I use svm(...type="C-classification") everything works fine. But
>> if I want to use nu-SVM with s
G'day Sundar,
On Tue, 2 Mar 2010 01:03:54 -0800
Sundar Dorai-Raj wrote:
> Thanks, Berwin. That works just great!
You are welcome.
I noticed by now that "cat(tmp)" is sufficient; the "tmp[1]" in
"cat(tmp[1])" was a left over from earlier attempts to get the output
to look correct.
Cheers,
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of John Sorkin
> Sent: Tuesday, March 02, 2010 3:46 AM
> To: Karl Ove Hufthammer; r-h...@stat.math.ethz.ch
> Subject: Re: [R] two questions for R beginners
>
> Please take what foll
hi all.
If someone have the same problems this is the answer:
-vertical legend :
> legend.krige(x.leg=c(X,X),y.leg=c(X,X),kr$pred,vert=TRUE,col="gray"(seq(.7,0,l=10)))
-sample's positions on the map:
###coords.dat=table$coords### like in
>image(kr,col="gray"(seq(.7,0,l=10)),xlim=c(-1
On Tue, Mar 2, 2010 at 4:05 PM, Paul Hiemstra wrote:
> frederik vanhaelst wrote:
>>
>> Hi,
>>
>> How could i generate random real numbers between 0 en 2*pi?
>>
>> Thanks,
>
> Googeling for "R generate random number" gave this as a second hit (on my
> machine):
>
> http://blog.revolution-computing
Try this:
plot(window(x, end = c(2006, 10)))
On Tue, Mar 2, 2010 at 2:19 AM, Erin Hodgess wrote:
> Dear R People:
>
> I have the following time series and plot:
>> x <- ts(rnorm(50),start=2005,freq=12)
>> plot(x)
>>
>
> which works fine.
>
> I would like to plot a subset of that time series, whi
On 02.03.2010 17:05, Häring, Tim (LWF) wrote:
I`m using SVMs for multi-class classification problems. Therefore I`m
using the svm() function in the package "e1071".
If I use svm(...type="C-classification") everything works fine. But
if I want to use nu-SVM with svm(..., type="nu-classifica
The indexing in xts is very nice; it may do what you want.
library(xts)
x.xts <- as.xts(x)
plot(x.xts)
plot(x.xts['2005::2006-10'])
HTH,
David Reiner
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
On Behalf Of Erin Hodgess
Sent: Tuesday, March
Hello R wizards,
What is the best way to read a data file containing both fixed-width and
tab-delimited files? (More detail follows.)
_*Details:*_
The U.S. Bureau of Labor Statistics provides local area unemployment
statistics at ftp://ftp.bls.gov/pub/time.series/la/, and the data are
document
frederik vanhaelst wrote:
Hi,
How could i generate random real numbers between 0 en 2*pi?
Thanks,
Frederik
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> > I`m using SVMs for multi-class classification problems. Therefore I`m
> using the svm() function in the package "e1071".
> > If I use svm(...type="C-classification") everything works fine. But
> if I want to use nu-SVM with svm(..., type="nu-classification", nu=0.5)
> R crashes immediately. No
-- Forwarded message --
From: Duncan Murdoch
Date: 25 February 2010 22:35
Subject: Re: [R] Building R packages in Windows 7
To: RHelp , Eric Ferreira
On 25/02/2010 7:56 PM, Eric Ferreira wrote:
> Thank you, Sir, but how can I demand it to create HTML files?
>
The tools::Rd2HTM
On 02.03.2010 15:41, Häring, Tim (LWF) wrote:
Hello !
I`m using SVMs for multi-class classification problems. Therefore I`m using the svm()
function in the package "e1071".
If I use svm(...type="C-classification") everything works fine. But if I want to use
nu-SVM with svm(..., type="nu-clas
On Tue, 2010-03-02 at 00:58 -0800, Noah Silverman wrote:
> Ted,
>
> Brilliant explanation (as usual)
>
> I'm back in school, just starting on a post-graduate degree in stats so
> the help is really appreciated.
>
> Now, I have a slightly trickier question about the same model.
>
> I've seen mo
Hello !
I`m using SVMs for multi-class classification problems. Therefore I`m using the
svm() function in the package "e1071".
If I use svm(...type="C-classification") everything works fine. But if I want
to use nu-SVM with svm(..., type="nu-classification", nu=0.5) R crashes
immediately. No er
Hi Henrique,
*Thank you!* The reshape code does precisely what I want.
Cheers!!
Albert-Jan
~~
In the face of ambiguity, refuse the temptation to guess.
~~
--
Sorry there were 2 typos in my note:
John Fox's posting provided a lot of information. Briefly, the "Types"
refer to whether effects are adjusted for all other effects in the model
(Types II, III, IV) or no (Type I or sequential tests only adjust for
no -> not
EARLIER terms in the model).
Brandon Zicha wrote:
Hey Paul,
Hey Brandon, (adding R-help in the cc)
I agree with you that the documentation of R could be better, especially
with more examples in code showing not only the common cases, but also
more esoteric cases. It would be great if everyone invested a lot of
time to w
Ravi Kulkarni wrote:
Hello,
I think I am beginning to understand what is involved in the so-called
"Type-I, II, ..." ANOVAS (thanks to all the replies I got for yesterday's
post). I have a question that will help me (and others?) understand it
better (or remove a misunderstanding):
I know tha
On Mar 2, 2010, at 8:11 AM, Sebastian Bauer wrote:
Hello,
is there an elegant way, how I can convert each row of a data frame
into distinct elements of a list?
split(dfrm, rownames(dfrm))
In essence, what I'm looking for is something like
rows.to.lists <- function( df ) {
ll <-
Try this:
reshape(cbind(id = as.numeric(dtf$var), dtf, time = with(dtf,
ave(value, var, FUN = seq))), timevar="time", direction="wide")
Or:
xtabs(value ~ var + ave(value, var, FUN = seq), data = dtf)
On Tue, Mar 2, 2010 at 9:40 AM, Albert-Jan Roskam wrote:
> Hi all,
> I have a (hopefully) si
Here is an example using proto based on converting Duncan's example:
library(proto)
Stack <- proto(new = function(.) proto(Stack,
stack = NULL,
push = function(., el) .$stack <- c(list(el), .$stack),
pop = function(.) { stopifnot(length(.$stack) > 0)
out <-
If memory serves, Bill Venables said in the paper cited several times
here, that there's only one type of sums of squares. So there's only
one type of "ANOVA" (if I understand what you mean by ANOVA).
Just forget about the different types of tests, and simply ask yourself
this (hopefully simple a
Hi!
On 03/02/2010 02:22 PM, Nutter, Benjamin wrote:
as.data.frame(t(df))
For example
x<- as.data.frame(t(mtcars))
typeof(x)
[1] "list"
Thanks for the quick reply!
I would never have guessed that as.data.frame() works that way!
BTW
This one seems also to do the trick:
rows.to.list <- f
See this thread :
http://finzi.psych.upenn.edu/Rhelp10/2009-January/185693.html
On 03/02/2010 02:18 PM, Lorenzo Isella wrote:
Dear All,
Consider the following trivial code snippet
rm(list=ls())
name_vec <- c("color1", "color2")
pdf("test_color.pdf")
plot(seq(5), seq(5), main=paste(name_vec[1
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