Displaying 20 results from an estimated 100 matches similar to: "warning in GAM"
2003 Jul 03
2
unlist
Hi
I have a list with several data.frames, all with the same number of
colunms but different number of rows, and I'd like to transform this
list into a single dataframe. I need to mimic an rbind of all dataframes
...
Transform doesn't seem to work :-(
Thanks
EJ
--
Ernesto Jardim <ernesto at ipimar.pt>
Bi?logo Marinho/Marine Biologist
IPIMAR - Instituto Nacional de Investiga??o
2003 Sep 08
0
New highlighting for NEdit 5.3
Hi,
I've just put together a new R syntax highlighting file for Nedit 5.3.
I've borrow the "base" functions of Jedit (thanks to Tobias Elze and Zed
A. Shaw) so now NEdit highlights a little more than before :)
You can download the file here:
http://ernesto.freezope.org/cmf/starthere/r/R-5.3.pats
Just import it into NEdit with
> nedit -import R-5.3.pats
and save your
2006 Nov 09
1
summary linear regression
>>Good morning,
>>
>>I am a PhD student in Barcelona working with R. My question is about the
>>summary of linear regressions.
>>The output of that summary gives some statistical parameters of the
>>regression. One of them is the R-squared. In the help menu i have read
>>that the manner to calculate the R-squared is
>>
>>R^2 = 1 -
2008 Dec 09
1
Bootstrap a GLM model with Poisson family
Hello!
Anyone can help me to know how to do a bootstrap evaluation analysis
to a GLM with family=Poisson?
I have some R codes but they were coded only for family=binomial...
thanks a lot
Joana Vicente .?.
CIBIO - Centro de Investiga??o em Biodiversidade e Recursos Gen?ticos.
Faculdade de Ci?ncias do Porto
Departamento de Bot?nica -Edif?cio FC4
Rua Do Campo Alegre, S/N
4169-007 Porto - Portugal
2007 Feb 07
0
Detrended Fluctuation Analysis
Good afternoon, my name is Gorka Merino and i am a scientist working in the
Marine Science Institune in Barcelone.
I'm interested in the application of "Detrended Fluctuation Analysis" (DFA)
with the R packages.
I've tried to obtain some information related to DFA from the 'Help'
options but failed.
Could somebody inform me about the use of these techniques in R
2010 Feb 05
1
Lines in code
Hi,
I dont know if this a coding rule or a program bug.
When I write this function below it work:
a <- c(1,2)
for(i in a){
print(i)
}
[1] 1
[1] 2
But if I write this function with line space it dont work.
a <- c(1,2)
for(i in a){
print(i)
}
Error: unexpected '}' in "}"
I remember that in early R version this limitation dont exist.
This is a bus, a rule or a
2005 Oct 27
0
Column names in qr() and chol() (PR#8258)
I am using 2.2.0
If the QR decomposition of an N*M matrix is such that the pivoting order
is not 1:M, Q%*%R does not result in the original matrix but in a
matrix with the columns permuted. This is clearly intentional, and
probably to be expected if pivoting is used --- chol() behaves in the
same manner (it would perhaps be nice if the qr help page made that
clear in the same way that the chol()
2003 Apr 28
1
qr(x,LAPACK=TRUE) (PR#2867)
Hi,
I think there is a problem with the LAPACK version of qr() in version
1.7.0. (version below).
1. The documentation states that LAPACK=TRUE is the default, but the code
has LAPACK=FALSE.
2. With LAPACK=TRUE qr() is never pivoting, even in cases where it very
clearly should be. e.g.
set.seed(0)
X<-matrix(rnorm(40),10,4);X[,1]<-X[,2]
qrx<-qr(X,LAPACK=TRUE)
qrx$pivot # note, no
2004 Mar 26
1
Mahalanobis
Dear all
Why isn'it possible to calculate Mahalanobis distances with R for a matrix
with 1 row (observations) more than the number of columns (variables)?
> mydata <- matrix(runif(12,-5,5), 4, 3)
> mahalanobis(x=mydata, center=apply(mydata,2,mean), cov=var(mydata))
[1] 2.25 2.25 2.25 2.25
> mydata <- matrix(runif(420,-5,5), 21, 20)
> mahalanobis(x=mydata,
2002 Oct 25
2
functions
Hello,
I am a newbie in R,
I just did my first function, which works!!! And I would like to know, if I
can create a directory in the library with my functions, in a way, which I
could call that like we call the packages ?
Can anyone help me?
Thanks in advance
Marta
><((((?>`?.??.???`?.?.???`?...?><((((?>`?.??.???`?.?.???`?...?><((((?>
2003 Oct 30
3
Change in 'solve' for r-patched
The solve function in r-patched has been changed so that it applies a
tolerance when using Lapack routines to calculate the inverse of a
matrix or to solve a system of linear equations. A tolerance has
always been used with the Linpack routines but not with the Lapack
routines in versions 1.7.x and 1.8.0. (You can use the optional
argument tol = 0 to override this check for computational
2002 Nov 05
1
last.warning and function problem
Hello,
I am a newbie in R and I am trying to create a function, that includes
several functions inside.
To avoid that everything stops if there is an error, I have this statement
bla = function(....){
...
if(exists("last.warning")){rm(last.warning)}
...
}
inside the function, which if I use it normally, it works fine, but once I
use it with the funciotn it gives me an error like:
2008 Jan 18
2
image/area plot
Dear R users,
I am trying to produce an image plot, that represents the proportions of
a factor (z variable), so that the number of squares of each colour
represents each factor level, with the respective label inside (sorry
for the crap English).
# Something like this:
kk=data.frame(fact=letters[1:10], freq=c(5,1,10,2,10,7,5,10,30,20)) #
factor and respective frequecies
res="a" #
2003 Aug 14
2
vectorization question
If you look at the structure, you'll see:
> x$V4 <- 0
> str(x)
`data.frame': 4 obs. of 4 variables:
$ V1: int 1 2 3 4
$ V2: int 5 6 7 8
$ V3: int 9 10 11 12
$ V4: num 0
Don't know if this is the intended result. In any case, you're probably
better off using data.matrix, as
> data.matrix(x)
V1 V2 V3 V4
1 1 5 9 0
2 2 6 10 0
3 3 7 11 0
4 4 8 12
2002 Dec 05
0
crimson
>Date: Tue, 05 Nov 2002 16:52:58 +0100
>To: r-help at lists.R-project.org
>From: Marta Rufino <mrufino at cmima.csic.es>
>Subject: last.warning and function problem
>
>Hello,
>
>I am a newbie in R and I am trying to create a function, that includes
several functions inside.
>To avoid that everything stops if there is an error, I have this statement
>
>bla =
2007 May 25
2
xyplot: different scales accross rows, same scales within rows
Dear list members,
I would like to set up a multiple panel in xyplots, with the same scale
for all colunms in each row, but different accross rows.
relation="free" would set up all x or y scales free... which is not what
I want :-(
Is this possible?
Thank you in advance,
Best wishes,
Marta
2002 Dec 05
2
crimson editor
Hello,
Sorry about the last email, I just found the shortcutkey for sending, by
mistake :-(
OK. I am a windows user and I wanted to instal emacs. However, went to
speak with the information staf on the institut and they told me that that
is a bit problematic sometimes, and that there is a free soft that could do
a very similar job which is crimson...
This is like a note pad, but highlights the
2003 Jul 18
1
(PR#2867)
This is a multipart message in MIME format.
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Content-Type: text/plain; charset="us-ascii"
Two points in respect to PR#2867.
First, the trivial one:
(1) In Lapack.c, on lines 806 and 812, there are calls of
F77_CALL(dgeqp3). But the error messages on lines on lines 809 and 815
refer to "dqeqp3", i.e., they currently have a "q"
2010 Aug 13
2
Kalman filter
Dear All,
Could anyone?give me a hand?to suggest few packages in R to running Kalman
prediction and filtration ?
Thanks
Fir
2007 Nov 15
1
Quantile Regression Question
Hi,
Could you please explain what is non-positive fis error? I have been trying to use quantile regression (rq) procedure and I keep ending up with this error. I haven't been able to find an explanation for the same.
Best Regards,
Arti
Arti Mann
Ph.D. Student
Department of Information Systems
W.P. Carey School of Business
Arizona State University
Email : Arti.Mann at asu.edu