Francois
You might try the BB package, which has quite a nice example.
Stuart
On Sat, 19 Jul 2008 10:20:34 +1000, François Aucoin
<[EMAIL PROTECTED]> wrote:
Hey,
I was wondering if there existed a R function similar to 'fsolve' or
'fzero' Matlab functions?
Thanks!
Francois Aucoin
[
try using the 'line' parameter:
par(mfrow=c(6,1),oma=c(20,0,20,0), mar=c(0,3.1,1,2.1))
for (i in 1:6) {
plot(cars[,"speed"],cars[,"dist"])
}
mtext("Position (Mb)", outer=TRUE, side=1, line=3)
mtext("Position (Mb)", outer=TRUE, side=3, line=3)
On Fri, Jul 18, 2008 at 7:00 PM, Janet Young <[EMAIL
Hi there,
I'm trying to get some text in the outer margins of my plots and am
having trouble - the margin text is overlapping my plots, even though
the outer margin I'm trying to put it in is very big.
I've simplified my problem down to this:
-
X11(width=7.5,height
Hi all,
I'm currently implementing quasi random generation (torus) on R
(package randtoolbox available on CRAN). Even if it is not a great
idea, I decided to use the machine time to initiate the seed. So when
the seed is not specified by the user, the pkg uses the time machine
time.
Henc
How do I use the buffer function since I have more than the two columns it
calls for? (I have 46!)
--
View this message in context:
http://www.nabble.com/%22Spreading-risk%22-in-a-matrix-tp18535227p18537082.html
Sent from the R help mailing list archive at Nabble.com.
Hey,
I was wondering if there existed a R function similar to 'fsolve' or
'fzero' Matlab functions?
Thanks!
Francois Aucoin
[[alternative HTML version deleted]]
__
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P
Hello,
I am sorry if this is an answered question, but I did my homework for a long
while and couldn't figure out a way to retrieve data entry from a model dialog.
In one of the examples compiled by James Wettenhall:
odalDialog <- function(title, question, entryInit, entryWidth = 20,
ret
Dear Andrew,
Following Jim Holtman' solution (thanks for pointed it out), try:
a <- data.frame(var.1 = 1:5)
b <- data.frame(var.1 = 11:15)
test.list <- list(a=a, b=b)
do.call(rbind,lapply(names(test.list), function(x){
cbind(test.list[[x]], var.2=x)
}))
HTH,
Jorge
On Fri, Jul 18, 2008
forgot one step:
> z <- lapply(names(test.list), function(x){
+ cbind(test.list[[x]], var.2=x)
+ })
> names(z) <- names(test.list)
> z
$a
var.1 var.2
1 1 a
2 2 a
3 3 a
4 4 a
5 5 a
$b
var.1 var.2
111 b
212 b
313 b
414
Is this what you wanted; you would use the 'names' to get the names in
the lapply:
> lapply(names(test.list), function(x){
+ cbind(test.list[[x]], var.2=x)
+ })
[[1]]
var.1 var.2
1 1 a
2 2 a
3 3 a
4 4 a
5 5 a
[[2]]
var.1 var.2
111 b
212
Dear Andrew,
It's not the best solution but it does what you need:
a <- data.frame(var.1 = 1:5)
b <- data.frame(var.1 = 11:15)
test.list <- list(a=a, b=b)
res=do.call(rbind,test.list)
res$var.2=substr(rownames(res),1,1)
rownames(res)=NULL
res
HTH,
Jorge
On Fri, Jul 18, 2008 at 6:21 PM, Andre
In the following code, I'd like to be able to create a new variable
containing the value of the names of the list.
a <- data.frame(var.1 = 1:5)
b <- data.frame(var.1 = 11:15)
test.list <- list(a=a, b=b)
# in this case, names(test.list) is "a" and "b"
# and I'd like to use lapply() so that
# I
This is for ACroske but I can't find his email so I'll just send it to
the list. Hi ACroske: The code below takes a zeros and ones matrix and
puts ones
in the places you wanted. It can be made shorter ( maybe ?. i haven't
thought about that ) but first let me know if that's what you wanted ?
The
Do simply
which(a<100 & a>=200)
Julian
sj wrote:
Hello, I am trying to identify values that fall within a certain range. I
thought that I might be able to use the which function to do this but I have
been unable to figure out a way to do it. Perhaps a little code will
illustrate what i am try
Hello,
I am calculating 'Betweenness' of a large network using R. Currently, I have
the node-node information (City1-City2) in an excel file, present in two
columns where column A has City1 and column B has City2 that city1 is connected
to. These are the steps that I go through to calculate bet
Have a look at the buffer function in the adehabitat package.
HTH,
Thierry
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest
Cel biometrie, methodologie en kwalitei
Hello,
I make frequent use of the *step()* and, for plotting, *all.effects()
*functions for *lm()* objects. I am now doing more with *lme()* random
effects models, and haven't been able to find functions similar to
*step()* or *all.effects()* which will accept *lme()* objects. Do
similar fu
On Fri, 18 Jul 2008 11:42:09 -0700,
sj <[EMAIL PROTECTED]> wrote:
[...]
> a <- rnorm(1000, 100, 50) which( 100 < a <= 200)
> of course this doesn't work but illustrates what I ma trying to do, If
> anyone has suggestions I would greatly appreciate it
Have a look at ?&
--
Seb
Try :
which(a > 100 & a<= 120)
On Fri, Jul 18, 2008 at 3:42 PM, sj <[EMAIL PROTECTED]> wrote:
> Hello, I am trying to identify values that fall within a certain range. I
> thought that I might be able to use the which function to do this but I have
> been unable to figure out a way to do it. Per
strapply in gsubfn finds matches of the indicated regexp,
in this case a \t followed by one or more minus, dot or digit,
and with backref of -1 it passes the backreference, i.e. portion
of the match within (..), to the function in the third arg. See
http://gsubfn.googlecode.com
library(gsubfn)
st
Hello, I am trying to identify values that fall within a certain range. I
thought that I might be able to use the which function to do this but I have
been unable to figure out a way to do it. Perhaps a little code will
illustrate what i am trying to do.
a <- rnorm(1000, 100, 50)
which( 100 < a
I have a binary matrix that represents a map of invasive species risk (1 =
infested; 0 = uninfested). It started as a matrix of probabilities
(developed in ArcMap) that I converted to binary with this R code:
binary.matrix<-matrix(rbinom(length(prob.matrix),prob=prob.matrix,size=1),nrow=nrow(prob.
Dear Christine,
Try
x="\talpha0\t-0.638\t0.4043\t0.4043\t-2.215\t-0.5765\t-0.137\t501\t2000"
res=unlist(strsplit(x,"[\t]"))
as.numeric(res[-c(1,2,length(res)-1,length(res))])
HTH,
Jorge
On Fri, Jul 18, 2008 at 12:44 PM, Christine A. <
[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> assume I have an
Ah... obvious isn't it ? As always.
Many thanks,
Tolga
"jim holtman" <[EMAIL PROTECTED]>
18/07/2008 17:30
To
[EMAIL PROTECTED]
cc
r-help@r-project.org
Subject
Re: [R] Landscape mode for pdf
pdf(file=..., width=10, height=8)
On Fri, Jul 18, 2008 at 11:04 AM, <[EMAIL PROTECTED]> wrote:
>
Jose Iparraguirre D'Elia wrote:
[snip]
Thanks Brian,
The error message reads as follows:
Error in read.spss("G:/Jose/Life and Times Survey/LT 2007/nilt07w1.por") :
error reading portable-file dictionary
So it looks like it is not a portable file, or at least one that read.spss
know
Try this:
na.omit(as.numeric(unlist(strsplit("\talpha0\t-0.638\t0.4043\t0.4043\t-2.215\t-0.5765\t-0.137\t501\t2000",
"\t"
On Fri, Jul 18, 2008 at 1:44 PM, Christine A.
<[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> assume I have an "unstructured" text line from a connection. Unfortunately,
> it i
Hello,
assume I have an "unstructured" text line from a connection. Unfortunately,
it is in string format:
R> x
[1] "\talpha0\t-0.638\t0.4043\t0.4043\t-2.215\t-0.5765\t-0.137\t501\t2000"
How can I extract the data included in this string object "x" in order to
get the elements for the paramete
Doesn't it now? PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html and provide commented,
minimal, self-contained, reproducible code.
On Thu, Jul 17, 2008 at 8:26 AM, Xin <[EMAIL PROTECTED]> wrote:
> Dear All:
>
> I am trying to plot a series of data using histogram plo
Hello,
I was messing around with graphics, and noted an odd behavior of par("din"). If
the x11 device is empty, par("din") does not return the correct size
if the device
has been resized manually. dev.size() works correctly.
R version 2.7.1; Fedora 8
# case 1 - empty device
> x11()
> dev.size(
I'm trying to find an R package that will smooth a line with the "polynomial
approximation with exponential kernel" or "PAEK" algorithm that is used in
ESRI's ArcGIS software. I have a copy of the original paper that provides
the algorithm, but I'm not confident in how to code it. The algorithm w
Hi Charles,
The souce code for RStat is included on the distribution DVD, which meets the
GPL 2 distribution requirement.
We do provide evaluation copies of RStat that are funtionally complete and
include the complete source code. Email [EMAIL PROTECTED] if you would like an
evaluation copy.
[EMAIL PROTECTED] <[EMAIL PROTECTED]> [Fri, Jul 18, 2008 at 05:04:15PM CEST]:
[...]
> Generally, this communication is for informational purposes only
> and it is not intended as an offer or solicitation for the purchase
> or sale of any financial instrument or as an official confirmation
> of any
pdf(file=..., width=10, height=8)
On Fri, Jul 18, 2008 at 11:04 AM, <[EMAIL PROTECTED]> wrote:
> Dear R Users,
> I would like to get the pdf() command to create graphics in landscape
> mode, as I am plotting 8 graphs in 2 rows and 4 columns. This is being
> generated for an a4 printer (so I also
To Whom It May Concern:
Are there more examples / information regarding the use of
'dataedit'? If so, where might I find these?
Regards,
Steve Kennedy
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do rea
Maybe something like this:
stopifnot(tail(unlist(strsplit("slides.pdf", "\\.")), 1) == "txt")
On Fri, Jul 18, 2008 at 12:51 PM, mysimbaa <[EMAIL PROTECTED]> wrote:
>
> Dear R users,
> I want to read a file like following :
>
> if it is a table then z <- read.table(pathname, dec=".", header=TRUE)
However, it can be read in SPSS. The file is available on the web, as it
corresponds to the raw database of the Northern Ireland Life and Times Survey
2007 (http://www.ark.ac.uk/nilt/datasets/). It is a file that SPSS recognises;
albeit the foreign package doesn't -hence my initial query.
José
Try:
names(abc)[3] <- "w"
On Fri, Jul 18, 2008 at 1:08 PM, Rajasekaramya <[EMAIL PROTECTED]> wrote:
>
> hi there,
>
> I need to change a column name in a dataframe.how do i do that
> eg
> abc<- dataframe
> abc
> x y z
>
> i wanna change the colum z to w.
>
> Ramya
> --
> View this message in con
Dear R users,
I want to read a file like following :
if it is a table then z <- read.table(pathname, dec=".", header=TRUE)
else if it's not a table (image,doc,...) then send an error or something
like that
acually I have a read.table in the beginnig of my R code, and if my data is
not a table I
hi there,
I need to change a column name in a dataframe.how do i do that
eg
abc<- dataframe
abc
x y z
i wanna change the colum z to w.
Ramya
--
View this message in context:
http://www.nabble.com/cbind-help-tp18532609p18532609.html
Sent from the R help mailing list archive at Nabble.com.
_
Is this what you want:
> x
[,3] [,5] [,6] [,9] [,11]
[,3] 16 11 1621
[,5] 27 12 1722
[,6] 38 13 1823
[,9] 49 14 1924
[,11]5 10 15 2025
> library(reshape)
> melt(x)
X1X2 value
1 [,3] [,3] 1
2 [,5]
Hi, Greg:
Have you answered Uwe's question? I visited your website, and your idea
sounds interesting. I'm an engineer, not a lawyer, but it seems to me that
what you have IS in accord with the GPL - provided that that you make the R
source available as Uwe asks.
So: what's the answer to Uwe's
On Fri, 18 Jul 2008, Jose Iparraguirre D'Elia wrote:
However, it can be read in SPSS. The file is available on the web, as it
corresponds to the raw database of the Northern Ireland Life and Times Survey
2007 (http://www.ark.ac.uk/nilt/datasets/). It is a file that SPSS recognises;
albeit the
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html and provide commented,
minimal, self-contained, reproducible code.
I do NOT know how to do what you want, but with a self-contained
example, I suspect many people on this list -- probably including me --
co
Building upon Jim's answer below (Thanks Jim, that helped a lot), I need
to pickup where this thread left off. I'm using Vegan to calculate the
Jaccard's Index and the Row.Names and column names are represented in my
matrix as seen here.
[,3] [,5] [,6] [,9] [,11]
[3,]06 11
Dear R Users,
I would like to get the pdf() command to create graphics in landscape
mode, as I am plotting 8 graphs in 2 rows and 4 columns. This is being
generated for an a4 printer (so I also use the paper="a4" command). Is
there a way I can ask pdf() to generate the document in landscape mode
Many thanks, much appreciated.
"Henrique Dallazuanna" <[EMAIL PROTECTED]>
18/07/2008 15:11
To
[EMAIL PROTECTED]
cc
r-help@r-project.org
Subject
Re: [R] creating names for lists
Try:
foo <- list(3)
names(foo) <- paste(a, b)
On Fri, Jul 18, 2008 at 11:03 AM, <[EMAIL PROTECTED]> wrote:
On Fri, 18 Jul 2008, Jose Iparraguirre D'Elia wrote:
Thanks Brian,
The error message reads as follows:
Error in read.spss("G:/Jose/Life and Times Survey/LT 2007/nilt07w1.por") :
error reading portable-file dictionary
So it looks like it is not a portable file, or at least one that read.spss
Thanks Brian,
The error message reads as follows:
Error in read.spss("G:/Jose/Life and Times Survey/LT 2007/nilt07w1.por") :
error reading portable-file dictionary
José
-Original Message-
From: Prof Brian Ripley [mailto:[EMAIL PROTECTED]
Sent: 18 July 2008 14:38
To: Jose Iparraguirr
Spencer Graves wrote:
I found the first chapter of Paul Dierckx (1993) Curve and Surface
Fitting with Splines (Oxford U. Pr.). Beyond that, I've learned a lot
from the 'fda' package and the two companion volumes by Ramsay and
Silverman (2006) Functional Data Analysis, 2nd ed. and (2002) Applie
Hi Davide,
did you check the R Installation and Administration Manual?
In Section A.2.1 you will find some more information.
Make sure that you have the 'dev' packages installed of tcl8.x and tk8.x.
If you don't know where 'tclConfig.sh' and 'tkConfig.sh' are located,
just find them:
locate t
Hi R,
Here's a question/problem on the 'neuralnet' package for neural
networks. I have more than 50 factors in each of my independent
variables. When I apply the command 'neuralnet', I get the below warning
message,
> net.sum <- neuralnet( Sum~Var1+Var2+Var3, b,
hidden=0,linear.output=TRUE
On Fri, 2008-07-18 at 09:37 -0400, stephen sefick wrote:
> >na.contiguous
> function (object, ...)
> UseMethod("na.contiguous")
>
>
> this is what I get when I look for the source code for some functions- Is
> there a way to look at the source code?
na.contiguous is an S3 generic function, and
Oh true, this would solve the problem too :-)
Thanks a lot for the suggestions!
Antje
Martin Morgan schrieb:
Antje <[EMAIL PROTECTED]> writes:
Thanks a lot for your help!
I know that I cannot directly access the list created, I just was not
sure if there is any "format" of the return value
Try:
foo <- list(3)
names(foo) <- paste(a, b)
On Fri, Jul 18, 2008 at 11:03 AM, <[EMAIL PROTECTED]> wrote:
> Dear R Users,
> How can I create names for lists within a function where the name itself
> is a function of several variables ?
>
>> a<-1
>> b<-2
>> paste(a,b)
> [1] "1 2"
>> foo<-list(pa
Dear R Users,
How can I create names for lists within a function where the name itself
is a function of several variables ?
> a<-1
> b<-2
> paste(a,b)
[1] "1 2"
> foo<-list(paste(a,b)=3) <<<= DOES NOT WORK
Error: unexpected '=' in "foo<-list(paste(a,b)="
> eval(paste(a,b))
[1] "1 2"
> foo<-li
This is a S3 method, then:
methods("na.contiguous")
getS3method("na.contiguous", "data.frame")
getS3method("na.contiguous", "zoo")
On Fri, Jul 18, 2008 at 10:37 AM, stephen sefick <[EMAIL PROTECTED]> wrote:
>>na.contiguous
> function (object, ...)
> UseMethod("na.contiguous")
>
>
> this is wha
On Fri, 18 Jul 2008, Jose Iparraguirre D'Elia wrote:
Does anyone know how to read SPSS .por (ie Portable) files? The foreign
package only deals with SPSS .sav files and not with those with a "por"
extension.
Not so. ?read.spss says
'read.spss' reads a file stored by the SPSS 'save' or
>na.contiguous
function (object, ...)
UseMethod("na.contiguous")
this is what I get when I look for the source code for some functions- Is
there a way to look at the source code?
--
Let's not spend our time and resources thinking about things that are so
little or so large that all they really
Dear R users,
I have had a problem using the "step" function for the selection of the
variables from a gamma model with log link function.
CODE:
step.glm.gam1.infroma <- step(glm.gam1.infroma, direction = "backward", k=2)
ERROR MESSAGE:
Error in glm.fit(x[, jj, drop = FALSE], y, wt, offset = obj
minimal, minimal, minimal, I will have to remind myself.
contiguous.zoo <- function(x)
{
z.rle <- rle(!is.na(rowSums(coredata(x
# row indexes
ends <- cumsum(z.rle$lengths)
starts <- ends - z.rle$lengths + 1
indexes <- with(z.rle, data.frame(starts, ends, lengths, values))
indexes.sort <- index
Thanks a lot for your help!
I know that I cannot directly access the list created, I just was not sure if
there is any "format" of the return value which could provide additionally a
name for the returned list.
I tried to return the values as list with the appropriate name but then I end
up wi
Try this:
x <- read.table('example.txt', colClasses = rep("character", 7))
On Fri, Jul 18, 2008 at 9:53 AM, Luis F <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I am a biologist and I am dealing with files composed of columns with T or A
> or C or G (example below)
>
> Sometimes a column is composed of
Hello,
I am a biologist and I am dealing with files composed of columns with T or A
or C or G (example below)
Sometimes a column is composed of only "T"
and in that case, the columns becomes a logical column TRUE (example below)
I know that the argument "as.is" controls the turns off turning a
I would do it like this but I'm curious to see whether it can be easier solved
:-)
b <- c(1:10)
vector_list <- lapply(1:length(b), FUN = function(x) { b[1:x] }))
(for everything in a large vector just apply "unlist" to the "vector_list")
Antje
Chaofeng Kou schrieb:
Dear all,
I have got a
Does anyone know how to read SPSS .por (ie Portable) files? The foreign package
only deals with SPSS .sav files and not with those with a "por" extension.
Thanks,
José
Mr José Luis Iparraguirre D'Elia
Senior Research Economist
Economic Research Institute of Northern Ireland
Floral Buildi
On Fri, 2008-07-18 at 14:19 +0200, Antje wrote:
> Hi Gavin,
>
> thanks a lot for your answer.
> Maybe I did not explain very well what I want to do and probably chose a bad
> example. I don't mind spaces or names starting with a number. I could even
> name it:
>
> "Hugo1", "Hugo2", ...
>
> My
It would be appreciated if you cut down your data to
a minimal size before posting. At any rate, the ends
are the cumsums of the lengths and
the starts are lengths-1 before that, e.g.
# data
library(zoo)
z <- zoo(c(1, 2, NA, 3, 4, 5, NA, 6))
z <- cbind(z, z)
z.rle <- rle(!is.na(rowSums(coredata(
Dear List,
Is there a possibility to change the font-face for a part of the title
of a plot?
For example I have the following...
plot(nirs, type="l", xlab="Wellenlänge [nm]", col="darkslategray",
main = "Spektrum Deschampsia caespitosa")
...and I would like to change the part of the tit
#how do I use the below, sorry for being unsavey. I would look for when
value = FALSE meaning the there are no NAs and Then look for the longest
value of continuous measurements (or lengths that I am comfortable with)
correct? How do I subset my original data frame with this information? How
do
try this:
b <- rnorm(4)
ind <- unlist(lapply(seq_along(b), seq_len))
b
b[ind]
I hope it helps.
Best,
Dimitris
Dimitris Rizopoulos
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16
Dear all,
I have got a question for generating repeats of a vector's elements.
Please don't hesitate to email me back and say that it is very easy
although I can't find a method to solve it.
If I have a n-vector b, whose elements are b[1], b[2], ..., b[n], how
can I generate such a vector
b[1]
CG> --- 8< - 00check.log --
CG> * using log directory 'C:/Documents and Settings/Christophe/Mes
CG> documents/Docs articles polys résumés/R/tutorial S4/packClassic.Rcheck'
I see many directories with spaces (" ") inside.
This used to cause all kind of prob
Hi Gavin,
thanks a lot for your answer.
Maybe I did not explain very well what I want to do and probably chose a bad
example. I don't mind spaces or names starting with a number. I could even name it:
"Hugo1", "Hugo2", ...
My biggest problem is, that not only the values are calculated/estimat
na.contiguous.zoo() will return the longest stretch of non-NA data.
Its a zoo method of the na.contiguous generic in the core of R.
rle(!is.na(rowSums(coredata(z will find all stretches.
On Fri, Jul 18, 2008 at 6:47 AM, stephen sefick <[EMAIL PROTECTED]> wrote:
> I have a data frame that is 1
Hello Everyone,
I mis-typed the version number in the annoucement that just went out. Here
is the corrected message:
On Fri, Jul 18, 2008 at 6:50 AM, Gregory R. Warnes <
[EMAIL PROTECTED]> wrote:
> Random Technologies LLC is pleased to announce immediate availability of
> RStat version 2.7.1. <
On Fri, 2008-07-18 at 13:45 +0200, Antje wrote:
> Hi there,
>
> I have a very simple question. If I execute the following code:
>
>
> test <- function(x) {
> name <- paste(x,"info_within_function")
> c(1,2,3,4,5)
> }
>
Here your test is returning c(1,2,3,4,5), and is doing nothing
Hi there,
I have a very simple question. If I execute the following code:
test <- function(x) {
name <- paste(x,"info_within_function")
c(1,2,3,4,5)
}
ret <- lapply(1:10, test)
, I end up with a list and each entry is just numbered [[1]], [[2]], ... [[10]]
How can I force th
Gregory R. Warnes wrote:
Hi All,
Random Technologies LLC’s commercially supported Rstat, based on R
2.7.2, is available today. For product information, visit http://www.random
-technologies-llc.
Hi Greg,
two short questions on your very interesting product:
1. How can it be based on
Hi Simon,
i tried your code, but it results in an error:
"error in var(x) : `x` is empty"
Do you have an idea what the reason might be?
Thanks a lot,
Henning
>
> Original-Nachricht
> Datum: Fri, 18 Jul 2008 11:37:24 +0100
> Von: Simon Anders <[EMAIL PROTECTED]>
I think the approach is ok. I'm having difficulties though...!
I've managed to get 'merge' working (using the 'all' function as suggested),
but for some strange reason, the output file produces 12 extra rows! So now the
shorter file isn't the same length as the 'master' file, it's now longer!
Random Technologies LLC is pleased to announce immediate availability
of RStat version 2.7.2.
This version of RStat provides the features of the latest version of R
from the R-project with with enterprise-level validation,
documentation, software support, and consulting services from Random
I have a data frame that is 122 columns and 7ish rows it is a zoo
object, but could be easily converted or read in as something else. It is
multiparameter multistation water quality data - there are a lot of NA s. I
would like to find "chuncks" of data that are free of NA s to do some
analysi
Hi Henning,
Henning Wildhagen wrote:
Given a dataframe of three columns, where col1 is of type factor, col 2 and
col3 are numeric and pairs of observations i would like to perform a paired
t-test for each level of col1.
I would like to avoid specifying the levels of col1 manually because it
se
Hi All,
Random Technologies LLCs commercially supported Rstat, based on R
2.7.2, is available today. For product information, visit http://www.random
-technologies-llc.
-Greg
Gregory R. Warnes, Ph.D.
Chief Scientist
Random Technologies LLC
email: [EMAIL PROTECTED]
tel:(585) 4
Dear list,
i try to do my first statistics with R.
Given a dataframe of three columns, where col1 is of type factor, col 2 and
col3 are numeric and pairs of observations i would like to perform a paired
t-test for each level of col1.
I would like to avoid specifying the levels of col1 manually
Once you get your matrices in order you do not want to use t(X) %*% X. Instead,
use crossprod(X). They do the same thing, but the former is the matrix
operations based on the algebraic representation whereas numerical analysts
will prefer the methods used in crossprod (hence the reason it exists
> "CG" == Christophe Genolini <[EMAIL PROTECTED]>
> on Fri, 18 Jul 2008 11:14:25 +0200 writes:
CG> Hi the list,
CG> Back on an old problem. I thaught that was ok, but it is still not
CG> working on my computer.
CG> I write a toy package called packClassic. R CMD build
Hello,
Would anyone be able to help me find an algebraic equation sequencer (like
Knuth's topological processor) that will order a system of equations for
nonlinear optimization similar to GAMS/AMPL? eg A[t]=A[t-1]+B[t] with
perhaps sum(A) to be optimised by changing B[t] and other constrai
Hi the list,
Back on an old problem. I thaught that was ok, but it is still not
working on my computer.
I write a toy package called packClassic. R CMD build packClassic works
fine.
When I run R CMD CHECK packClassic, I get
--- 8< ---
* checking for unstated dependencies in R code
Or perhaps it is the idea of "different" that is broken.
If you are doing the same problem, then the eigenvalues
should be equal in the two systems -- up to numerical
error.
If that is true, then the eigenvectors for each distinct
eigenvalue need to span the same space. Thus the
eigenvectors ca
do.call('paste', c(data.frame(letters, LETTERS),
list(sep='/')))
Patrick Burns
[EMAIL PROTECTED]
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide for the Unwilling S User")
Sebastian Weber wrote:
Hi everybody!
I'm sure that I overlook something and feel quite stu
try this:
data("Orthodont", package = "nlme")
metaFields <- c("Subject", "Sex")
Orthodont$ID <- do.call("paste", c(Orthodont[metaFields], sep = "/"))
I hope it helps.
Best,
Dimitris
Dimitris Rizopoulos
Biostatistical Centre
School of Public Health
Catholic University of Leuven
Address:
Simple. Minitab must be broken. Have you reported it to them?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of SH.Chou
Sent: Friday, 18 July 2008 5:24 PM
To: r-help@r-project.org
Subject: [R] function "eigen" AND Minitab
Hi all. I got a question about eig
Hi everybody!
I'm sure that I overlook something and feel quite stupid to ask, but I
have not found an easy solution to the following problem: Take e.g. the
Orthodont data from the nlme package:
> head(Orthodont)
Grouped Data: distance ~ age | Subject
distance age Subject Sex
1 26.0 8
Hi,
Â
My question is how I load the package garchOxFit. I load the fGarch function
that works quite well, but I can't use the garchOxFit function. I have tried
looking at Help("garchOxFit"), I as far as I can understand I am supposed to
download the OxConsole Software together with the "OxGarch
Hi all. I got a question about eigenvector. I've tried input a symmetric
matrix to both R (using eigen function) and minitab, but the result is
really different. Can anyone tell me what's wrong with that?
Thanks.
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