Displaying 20 results from an estimated 29 matches for "tusell".
2002 Jan 28
4
Multivariate response trees
...meone has done work on trees with
multivariate response. I need something like rpart but for vector
responses. If someone has code that he/she is willing to share, I
would be grateful. If not, even guidelines for writing my own starting
from rpart would be welcomed.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometria y Estadistica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2006 Nov 28
2
Aligning aerial photographs and maps
...ly for each case, but wonder if
there is a better, automated way. I notice that the .jpg file has a
companion .jgw file which may be of help.
If someone has written code for such kind of alignments or can direct me
to detailed instructions on how to go about, I would be grateful. ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica fernando.tusell at ehu.es
Facultad de CC.EE. y Empresariales
Universidad del Pa?s Vasco Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Secr: (+34)94.601.3740
E-48015 B...
2003 Sep 20
3
conditional function definition?
Hi Folks,
What is the best way to avoid a function being read in
anew (and masking an exiting function) when a definition
of it has already been established in R?
Reason: Fernando Tusell and I are working up Schafer's 'CAT'
for R (basically done now, just needs some cosmetic tidying up).
This uses a function 'slice.index', present in S but not in
the versions of R we were working with at the time. So we put
in a definition (copied from R-help ... ).
However, i...
2000 Jun 20
5
Compiling R on an Alpha
...However, I have read (in www.alphalinux.org?)
that substantial improvements on speed of heavily floating point code
can be achieved on Alphas by using the Compaq C compiler (available at
their site). If somebody has some experience with that, I would like to
hear from him/her.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometría y Estadística etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2004 Mar 31
2
Failure to compile source packages in Debian
...the non-existence of library g2c-pic. Problem is I
cannot locate the .deb package
containing such library. Could some Debian user point me to the right
location? (I am using
Debian "testing" on a Pentium box and R ver. 1.8.1 installed from the
.deb package.)
Thank you.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2005 Jan 18
1
"Attach" for S4 objects?
...ay to "attach" it, or do I have
to refer to the slots as object at A, objetc at B, etc.?
I could always make copies,
A <- object at A
B <- object at B
...
but "object" has many slots, some fairly large, so this seems wasteful.
Thank you.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2002 Feb 01
1
Sampling from a database
...populate "Random" with random numbers generated in R
and then issue a query for records where "IDnumber" of the two tables
match AND Random > 0.9.
Seems to me clumsy, and surely there has to be a better way and
someone knowing SQL can suggest it.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2000 Apr 28
2
Dumping functions to RCS
....R, etc.
Presently I do so manually in order to use RCS (on a Linux machine),
so I can keep track of all versions, differences, snapshots, etc.
Is there any easy way to dump all functions in the workspace to
individually named files? Thank you very much for any ideas.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2004 Nov 03
2
Princomp(), prcomp() and loadings()
...ral should alter the proportions of variance accounted by
each component.
It looks as if the loadings() function were expecting the eigenvectors
to be normalized to the corresponding eigenvalue.
Transcript and version information follow signature. Thank you for any
clues.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr??a y Estad??stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2001 Oct 04
3
Ordered factors and DBMS
...session, but saving the table and
re-reading it reverts to the original order.
I have a vague feeling of having seen this asked, but I could not
locate any references. I looked also B.D. Ripley's "Using Databases
with R", but this problem is not discussed.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2009 May 19
4
nlrwr package. Error when fitting the optimal Box-Cox transformation with two variables
Dear all:
I'm trying to fit the optimal Box-Cox
transformation related to nls (see the code
below) for the demand of money data in Green (3th
Edition) but in the last step R gives the next
error message.
Error en
`[.data.frame`(eval(object$data), ,
as.character(formula(object)[[2]])[2]) :
undefined columns selected.
?Any idea to solve the problem?
Thanks in advance,
2000 Mar 30
1
slice.index
Porting a package from S-Plus to R I find missing the S-Plus function
slice.index().
Before I hack a (probably ugly an inefficient) replacement, has anyone
done so?
Is there a similar function in R that I have overlooked?
Many thanks,
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2000 Dec 19
1
update.packages()
I have recently upgraded to R-1.2 and update.packages() gives the
following error on my system. Am I doing something wrong?
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2003 Apr 29
1
Shafer's MIX: Query on code
Thanks to Fernando Tusell and especially to Brian Ripley for
their work on 'mix', leading to an apparently good package
mow available on CRAN.
Going through the R code for the function prelim.mix, I am
wondering why the following method of calculation is used
at one point:
umd <- as.integer(round(exp(cumsum(l...
2005 Jun 01
2
Fitting ARMA model with known inputs.
Hello!
Is it possible to use R time series to identificate a process which is
subjected to known input? I.e. I have 2 sequences - one is measurements
of black box's state and the second is the "force" by which this black
box is driven (which is known too) and I want to fit thist two series
with AR-process. The "ar" procedure from stats package expects that the
force is
2002 Sep 11
1
Problem with leaps (long)
...improve on leaps on several ways. However,
I see no way to select different criteria (Cp, R2, adjR2) in said
function.
I am using R 1.5.1 under Debian/Linux 3.0 (kernel 2.4.18, gcc -v
reports "gcc version 2.95.4 20011002", if that matters).
Many thanks for any help.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
2004 Jun 15
4
"Glueing" factors together
Hi folks,
Suppose I have a series of cases each with categorical
factors A, B.
What is the best way to "glue" A and B together into a single
factor? For example, given
A0 B1 ...
A1 B1 ...
A0 B2 ...
A1 B0 ...
A0 B0 ...
A1 B2 ...
then I'd like to end up with a single factor with levels
A0B0, A0B1, A0B2, A1B0, A1B1, A1B2
according to all the combinations which actually occur in
2000 Jun 19
1
Problem compiling R-1.1.0
...reports:
Reading specs from /usr/lib/gcc-lib/i386-linux/2.95.2/specs
gcc version 2.95.2 20000313 (Debian GNU/Linux)
I have always been able to compile without a hitch since version 0.90
at least. Please advice me if the problem is with the sources or with
my setup.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...
1999 Dec 23
1
rpart on Alpha under OSF
...l source for R in order
to compile a package? I do not have root rights on this machine, which
is why I went for the compiled distribution. Compiling the same package
on my Linux Intel machine works all right, so I guess the problem is
I am missing something that I should have.
ft.
--
Fernando TUSELL e-mail:
Departamento de Econometría y Estadística etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)946013733
Avenida Lendakari Aguirre, 83 Fax: (+34)946013754
E-48015 BILBAO (Spain)...
2004 Jun 10
1
Failure to compile on Itanium
...figure script fails to find
convenient values for the different flags to be set. I have set some
manually (in config.site),
to no avail so far. Has anyone compiled R with ecc and ecf? Or with
gcc-2.96? I would be
grateful if he/she could share his/her config.site settings. Best, ft.
--
Fernando TUSELL e-mail:
Departamento de Econometr??a y Estad??stica etptupaf at bs.ehu.es
Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733
Avenida Lendakari Aguirre, 83 Fax: (+34)94.601.3754
E-48015 BILBAO (Spain)...