Displaying 20 results from an estimated 320 matches for "exeter".
2009 Mar 25
2
"[.data.frame" and lapply
...t;, which I thought was an
argument of the method "[.data.frame"?
> args(`[.data.frame`)
> function (x, i, j, drop = if (missing(i)) TRUE else length(cols) ==
> 1)
>
Many thanks,
baptiste
_____________________________
Baptiste Augui?
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
2009 Mar 25
2
"[.data.frame" and lapply
...t;, which I thought was an
argument of the method "[.data.frame"?
> args(`[.data.frame`)
> function (x, i, j, drop = if (missing(i)) TRUE else length(cols) ==
> 1)
>
Many thanks,
baptiste
_____________________________
Baptiste Augui?
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
2012 May 18
3
colocar subscripts y cursiva
...xpression('F[3,23]=15.43'),expression('P < 0.001')),col=black, bty='n',cex=0.9)
Luego al tratar de colocar las cusriva utilizando par(font=3) tampoco funciona.
¿Alguna idea de un script para hacer esto?
Gracias
Eric Flores De Gracia
School of Biosciences
University of Exeter, Cornwall Campus
Penryn, Cornwall
TR10 9EZ
United Kingdom
Mobilephone: +044 07578724705
http://biosciences.exeter.ac.uk/cec/staff/postgradresearch/index.php?web_id=Eric_Flores_de_Gracia&tab=profile
2008 Jun 18
2
highest eigenvalues of a matrix
...values ordered from the highest to lowest?
Many thanks in advance for any piece of advice,
Sincerely,
Baptiste
dummy example if needed:
test <- matrix(c(1, 2, 0, 4, 5, 6, 1.00001, 2, 0), ncol=3)
eigen(test)
_____________________________
Baptiste Augui?
Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto
2007 May 25
2
Interactive plots?
Hi there.
I have a matrix that provides place names and the distances between them:
Chelt Exeter London Birm
Chelt 0 118 96 50
Exeter 118 0 118 163
London 96 118 0 118
Birm 50 163 118 0
After performing multidimensional scaling I get the following points plotted
as follows
http://www.nabble.com/file/p10810700/demo.jpeg
I wou...
2012 Jun 28
3
Sobre survival analysis
...o algo como:
modelo<-coxp(surv(deaths,day)~size+strata(block))
El factor bloque es random pero no se si esta es la nomenclatura correcta para testar mi hipotesis, o simplemente debo omitir el termino -strata-
Gracias,saludos
Eric Flores De Gracia
School of Biosciences
University of Exeter, Cornwall Campus
Penryn, Cornwall
TR10 9EZ
United Kingdom
Mobilephone: +044 07578724705
http://biosciences.exeter.ac.uk/cec/staff/postgradresearch/index.php?web_id=Eric_Flores_de_Gracia&tab=profile
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2009 Apr 14
2
subset dataframe by rows using character vector?
Dear List,
I'm stuck on what seems like a simple indexing problem, I'd be very grateful to anyone willing to help me out.
I queried a dataframe which returns a character vector called "plot". I have another dataframe from which I want to subset or select only those rows that match "plot". I've tried subset, and also the "which" command.
plot
2008 Nov 09
1
[Rd] Re Bessel functions of complex argument
...ling to help me with this? The package is hosted on R-forge
and i could take care of the documentation, etc.
- Is there a package I've missed that already implements this? (one can
dream)
Many thanks,
baptiste
_____________________________
Baptiste Auguié
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
______________________________
[[alternative HTML version deleted]]
2009 Apr 16
3
segment between points on different plots
Hi,
I need to draw a line segment between two points on different plots in the
same multigraph.I've tried looking at the zoominplot function in plotrix but
havent understood much.any help is appreciated
~Aks
[[alternative HTML version deleted]]
2013 Jul 03
0
PhD Studentship in Medical Statistics
PhD studentship in Medical Statistics (full time, 3 years) - University of Exeter Medical School
Applications are invited for a PhD studentship at the University of Exeter Medical School (UEMS). We are seeking to attract a PhD candidate of outstanding ability to join a rapidly expanding programme of internationally rated research.
The successful applicant will pursue a project...
2008 Apr 03
1
data.frame or list
...== "90")], type="l" ))
Is this a sensible way to store and manipulate this sort of data? Is
there anything more appropriate I've overlooked using data.frames only?
Many thanks,
baptiste
_____________________________
Baptiste Augui?
Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto
2008 Apr 12
1
lm() of one matrix against another
...for (ii in 1:n)
> {
> test <- lm(y~x,data=list(x=data.x[,ii],y=data.y[,ii]) )
> lines(data.x[,ii],test$coefficients[1] + test$coefficients[2] *
> data.x[,ii],lty=2,col=ii)
> }
Thanks,
baptiste
_____________________________
Baptiste Augui?
Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto
2008 Jul 03
1
ggplot2 legend for vertical lines
...p + geom_vline(intercept=c(5), colour = 1) +
> scale_shape_manual(name="fact", values=1) # tried this, but useless
> here
Any tips on changing these settings would be welcome!
Sincerely,
baptiste
_____________________________
Baptiste Augui?
Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto
2001 Nov 30
1
passwd chat problem
...wd.c just returns after issuing
the last string and does not wait to see if an error message is returned.
This results in the SAMBA password being changed when the UNIX change fails!
Does anyone have a work-around for this?
Phil.
---------------------------------------
Phil Chambers (postmaster@exeter.ac.uk)
University of Exeter
2009 Mar 09
3
How to write a function that accepts unlimited number of input arguments?
Dear R-helpers:
I am an R newbie and have a question related to writing functions that
accept unlimited number of input arguments.
(I tried to peek into functions such as paste and cbind, but failed, I
cannot see their codes..)
Can someone kindly show me through a summation example?
Say, we have input scalar, 1 2 3 4 5
then the ideal function, say sum.test, can do
2008 Feb 03
1
distances between points in R^3
...phere??,
but i've set that problem aside for the moment.
- the double for loop over all the points cries out for a vectorized
solution, but i can't really think of any.
Many thanks in advance,
baptiste
_____________________________
Baptiste Augui?
Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto
2006 Aug 10
1
help with structuring random factors using lmer()
...oefficient score for every individual).
m1<-lmer(weight~time+timesq+(1|id)+(timesq-1|id)+(time-1|id), data=dataset)
coef(m1)
gives me nearly what I want except there isnt an individual coefficient
score for each individual for x2.
Any suggestions very much appreciated.
Simon Pickett
s.pickett at exeter.ac.uk
Simon Pickett
PhD student
Centre For Ecology and Conservation
Tremough Campus
University of Exeter in Cornwall
TR109EZ
Tel 01326371852
2012 Jun 26
2
MuMIn - assessing variable importance following model averaging, z-stats/p-values or CI?
...., Nakagawa, S., Laws, R.J. & Jamieson, I.G. (2011) Multimodel inference in ecology and evolution: challenges and solutions. Journal of evolutionary biology, 24, 699-711.
Any help would be much appreciated
Regards
Andrew Robertson
PhD student
Centre for Ecology and Conservation
University of Exeter, Cornwall Campus
Tremough, Cornwall. TR10 9EZ
UK
Tel: 01326 371852
Email: ar313 at exeter.ac.uk
Web page: http://biosciences.exeter.ac.uk/staff/postgradresearch/andrewrobertson/
2008 Feb 14
1
write output in a custom format
...ble to work in this case, and my attempts at sink
(), dump(), writeLines(), writeChar() all turn into really dirty
solutions. I have this feeling I'm overlooking a simple solution.
Any help welcome,
baptiste
_____________________________
Baptiste Augui?
Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto
2009 Jun 25
3
grid.polygon() + color gradient
Hi,
I wonder whether there is a way to generate a polygon (a triangle in
my case) with color gradient using grid.polygon() in package grid?
I tried something like
library(grid)
grid.polygon(x=c(0, 0.5, 1), y=c(0.5, 1, 0.5), gp=gpar(col=NA,
fill=colorRampPalette(c("green", "lightgray"),
space="Lab")(200)))
But am only