Displaying 20 results from an estimated 159 matches for "264187".
2009 Mar 25
2
"[.data.frame" and lapply
...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
...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
2008 Nov 09
1
[Rd] Re Bessel functions of complex argument
...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 AuguiƩ
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]]
2008 Apr 03
1
data.frame or list
...ay 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 Feb 03
1
distances between points in R^3
...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
2008 Jun 18
2
highest eigenvalues of a matrix
...e 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
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
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 Feb 18
2
question on function arguments
...e when several arguments have this option of being vector or
scalar. Is there a way to use b$x that would work in both cases?
Many thanks,
baptiste
_____________________________
Baptiste Augui?
Physics Department
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
http://projects.ex.ac.uk/atto
2009 Apr 16
3
segment between points on different plots
Hi,
I need to draw a line segment between two points on different plots in the
same multigraph.I've tried looking at the zoominplot function in plotrix but
havent understood much.any help is appreciated
~Aks
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2009 Mar 09
3
How to write a function that accepts unlimited number of input arguments?
Dear R-helpers:
I am an R newbie and have a question related to writing functions that
accept unlimited number of input arguments.
(I tried to peek into functions such as paste and cbind, but failed, I
cannot see their codes..)
Can someone kindly show me through a summation example?
Say, we have input scalar, 1 2 3 4 5
then the ideal function, say sum.test, can do
2008 Apr 12
1
lm() of one matrix against another
...,ii],y=data.y[,ii]) )
> lines(data.x[,ii],test$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
...ual(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
2009 May 21
1
size of point symbols
...ther words, why is pch=21
a circle of radius given in inches, while pch=0 is a cross of arms'
length specified in mm?)
Best regards,
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 May 21
1
size of point symbols
...ther words, why is pch=21
a circle of radius given in inches, while pch=0 is a cross of arms'
length specified in mm?)
Best regards,
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
2008 Feb 14
1
write output in a custom format
...iteLines(), 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
2008 Aug 09
2
levels values of cut()
...n in the base library. I think
getMethod should do it but I don't understand the arguments to pass.
Any pointers appreciated,
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
2007 Dec 28
1
unit attribute to list elements
...lasses, though, and I'd like to keep
the access to the constants' values as direct and generic as possible.
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
2008 Mar 09
2
Bessel functions of complex argument
...ernal C or Fortran
code together with my R code, so I'm not sure where to go for a
simple solution.
Any advice welcome,
Best regards
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 Mar 09
2
Bessel functions of complex argument
...ernal C or Fortran
code together with my R code, so I'm not sure where to go for a
simple solution.
Any advice welcome,
Best regards
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