Displaying 20 results from an estimated 31 matches for "valverde".
2010 May 19
3
Pattern matching and replacement in matrix
Hello,
Is there any function like gsub(), that can match and replace patterns
in a matrix or a data frame?
Cheers!
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Tlf. +34 93 581 1910
Fax: +34 93 581 1573
2008 Jul 09
3
Expression in axis
Hello,
I am creating a plot and I would like to know how to put this expression
to the y axis
?mol/10^6 cells
I've tried some combinations using the expression() function, but none
of them worked.
Any idea?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Aug 27
3
Closest value
Hello,
I have this command:
x.axis <- seq(from=0.5, to=4.5, length.out=13112)
How can I which of the x.axis components is the closest to a given
value, for example 3.2?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2009 Feb 17
3
Combination
Hello,
I have a sequence of numbers:
seq(1:50)
and I would like to have all the possible combinations with this numbers
without repeating any combination:
11, 12, 13, ... ,22,23,24,...
How can I do it?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Aug 28
2
Read a file
...t' to the 'right' limits!
# Lines beginning with '#' must be considered as comment lines.
#
1628.40625
1628.40625
1964.40625
2242.0625
2533.5
2937.90625
3448.0
3923.96875
Is it possible to read it with R, something like scan() but keeping the
structure?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Feb 20
3
Rd to latex
Hello,
I would like to convert an Rd object to a latex file, so that I can put
it in my thesis. How can I do it? I tryed latex(), but it only works for
code...
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Nov 20
2
Fitting a model
...4,5.6,5.8,6,6.2,6.4,6.6,6.8,7,7.2,7.4)
plot(ph,delta,ylab=c(expression(Delta*delta)),xlab="pH")
Which kind of model can I fit on these, so that can I predict for a
given delta the pH of my sample? Once the model is fitted, how can I
plot it on the graph?
Best regards,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2007 Nov 22
2
Cutting a vector
Hello,
I have a vector, lets say
x <- 1:50
I would like it to be cut at certain points, being for example 1:5,
6:11, 12:17, ...
How can I do it? I have tried the cut() function, but I don not know how
to place the cutting points properly.
Best regards,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2009 Aug 19
3
Fitting a logistic regression
Hello,
I have this data:
Time AMP
0 0.2000000
10 0.1958350
20 0.2914560
40 0.6763628
60 0.8494534
90 0.9874526
120 1.0477692
where AMP is the concentration of this metabolite with time. If you plot
the data, you can see that it could be fitted using a logistic
regression. For this purpose, I used this code:
AMP.nls <- nls(AMP~SSlogis(Time,Asym, xmid, scal), data
2008 Feb 05
0
[Fwd: Problems when checking a package]
Forget my last message, it was a really stupid problem. Sorry about the
mess.
Best,
Dani
-------- Missatge original --------
Assumpte: Problems when checking a package
Data: Tue, 05 Feb 2008 11:20:28 +0100
De: Dani Valverde <daniel.valverde at uab.cat>
A: R Help <r-help at r-project.org>
Hello,
I am tryining to build a package called NMRTools and when I check it
using R CMD check NMRTools I get this error:
Functions/methods with usage in documentation object 'lda.bootstrap' but
not in
code:...
2008 Feb 19
1
Interpolation between 2 vectors
Hello,
I have two vectors, one with 13112 points and the other one with 10909.
I wonder if there is a way to interpolate the data so the shorter
vectors has the same number of points as the longer one.
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Jun 06
1
lsmeans
...random = ~1|ID, data=error_DB)
which returns an lme object. I am interested on carrying out some kind
of lsmeans on the data returned, but I cannot find any function to do
this in R. I'have seen the effect() function, but it does not work with
lme objects. Any idea?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Sep 01
2
Text
Hello,
I would like to place some text that should appear in the same position
of the graphic device, preferably outside the plotting area, regardless
the x and y axes limits. How can I do this?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Feb 20
1
insert() function
...s = pos, values = intensities)
at insert(spect1, ats = pos, values = intensities)
Can anyone help me on how can I solve it? I know that "pos" and
"intensities" have the same length, so I don't know why I get this
error. Any ideas will be welcome.
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Jun 02
1
LDA and centroids
...have carried out an lda analysis using the lda function of MASS
package. I have plotted the LD1xLD2 to represent the data. Now I would
like to get the centroids for each group of data and plot it on the
LD1xLD2 graph. How can I get the centroid value from the lda object?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Sep 03
1
Problems with playwith()
...get many errors regarded with GLib, and finally it says that the
runtime environment asks to close the application in an appropiate way.
Any idea on how to solve thi? I have all packages installed. I use R
2.7.2 and GTK+ 2.12.9. I have all the required packages installed.
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Aug 27
1
Combine x-axis labels size
Hello,
I would like to combine different label sizes in the same x-axis, for
example
1 2 3 4 5 6 7 8 9
How can I do it?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2007 Aug 20
1
LDA decission boundaries
...edict(data.lda)
data.ldd <- data.frame(data.ld$x,data.ld$class)
library(rggobi)
data.g <- ggobi(data.ldd)
The problem is that I do not know how to plot the decission boundaries
oh the graph I have made. I beg some answer as soon as you can, as it is
a bit urgent.
Best regards,
Dani
Daniel Valverde Saubí
Grup d'Aplicacions Biomèdiques de la Ressonància Magnètica Nuclear
(GABRMN)
Departament de Bioquímica i Biologia Molecular
Edifici C, Facultat de Biociències, Campus Universitat Autònoma de
Barcelona
08193 Cerdanyola del Vallès, Spain
Tlf. (0034) 935814126
dani@carbon.uab.es
[[alternati...
2008 Feb 26
1
GLM
...spect[,1]) and the rest to the response variables
(data.spect[,2:13113]). When I try this code
glmObject <- glm(data.spect[,2:13113]~data.spect[,1])
I get the following error:
Error: (subscript) logical subscript too long
Could anyone help me on solving this problem?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n Biom?dica en Red
en Bioingenier?a, Biomateriales y
Nanomedicina (CIBER-BBN)
Grup d'Aplicacions Biom?diq...
2008 Oct 08
1
Error in spdep: system is computationally singular
...receive the following error message:
Error in solve.default(asyvar, tol = tol.solve) :
system is computationally singular: reciprocal condition number = 2.8713e-12
What is happening? What does this message mean?
Thanks a lot,
Alberto
---------------------------------------
Alberto Jiménez-Valverde
Natural History Museum and Biodiversity Research Center
The University of Kansas
Lawrence, Kansas 66045 USA
email 1: ajvalv@ku.edu
email 2: alberto.jimenez.valverde@gmail.com
CV: http://www.biogeografia.com/CV/ajimenez/albertojimenezvalverde.htm
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