Displaying 20 results from an estimated 10000 matches similar to: "Pxelinux - so close!"
2003 Sep 25
1
Diamond graphs, again.
Some time ago I was allowed to discuss "Diamond Graphs", and whether
they would be useful in R, in this mailing list.
The August 2003 issue of The American Statistician has finally arrived
here and I have been able to read the article. A number of points of
interest arise.
1. The article is
"A Diamond-Shaped Equiponderant Graphical Display of the
Effects of Two
2003 Aug 21
3
Diamond graphs
I apologise for starting a new thread, but we had a mail problem and I
don't have the original message to refer to.
Someone mentioned the new "Diamond Graphs" invented at Johns Hopkins.
I haven't see the August 2003 issue of The American Statistician yet,
but I _have_ read the press release.
The press release is a bit of a stunner. I quote:
"Who would have thought we
2009 Dec 10
1
question about centroid-linkage (cluster analysis)
Dear R community,
I would be greatful if somebody could shed light on the following.
I have created a set of 6 points to check how centroid
agglomeration works in cluster analysis:
> Y <- data.frame(x=c(-1,1,1,-1,10,12),y=c(1,1,-1,-1,0,0))
It is quite intuitive to understand that the last clusters to be joined will be
{1,2,3,4} with {5,6}. Now, the centroid for the first cluster has
2009 Nov 24
2
convex hull for cluster analysis
Dear R gurus and users,
I seem to have problem finding the right tool for plotting convex hulls over
2D plots, after a cluster analysis. In fact I would like to draw a convex hull
in 2D for a generic group of points. I found a "convhulln", but this doesn't seem
to give me a convex hull. Here is what I do:
> library(mvtnorm)
> Mean <- c(2,1)
> Sigma <-
2010 Jul 07
2
how to define method for "+" function in a new class
Dear R developers,
I have a new class, which I called "Molecule", and have tried to define =
a "+" operation for 2 objects of this class.
This is what I have written so far, although the method is not complete =
(I'm trying to look at it at intermediate stages):
setMethod(
f=3D"+",
signature(x=3D"Molecule",y=3D"Molecule"),
2011 Feb 26
2
sourcing a linux file with "system"
Dear R community,
I would like to source a file in my linux system to set a few environment variables.
I have tried:
> system("source /home/james/build//ccp4-6.1.13/include/ccp4.setup")
and got:
sh: source: not found
In fact, using Sys.which("source") I get an empty string.
How can I source that ccp4.setup file from within an R session?
J
Dr James Foadi PhD
Membrane
2010 Jul 23
1
greek letters in rgl plot3d
Dear RGL experts,
I haven't been able to add greek letters to my rgl plot3d.
I have tried "expression" with no success.
Here is the interested bit:
> library(rgl)
> cb <- cube3d()
> plot3d(cb,xlab=expression(alpha),ylab="",zlab="",box=FALSE,alpha=0.5)
The expression(alpha) appears as "alpha", rather than as a greek symbol.
I suspect greek
2010 Sep 09
1
rgl and lighting
Dear R community (and Duncan more specifically),
I can't work out how to make additional light sources work in rgl.
Here is the example.
First I create a cube and visualize it:
> cubo <- cube3d(col="black")
> shade3d(cubo)
Next I position the viewpoint at theta=0 and phi=30:
> view3d(theta=0,phi=30)
Next, I want to create a 2nd light source which diffuses red light
2010 Jan 25
1
summing a large, partitioned data frame
Dear R community,
I'm trying to develop a fast way of summing specific rows of a large data frame.
Here is an example of the kind of data frames I'm dealing with:
> refls
H K L M/ISYM BATCH I SIGI
43247 1 0 5 21 79 61.44117 2.20553
1040 1 0 5 257 6 15.16316 0.54431
2324 1 0 5 257 5 46.76152 1.67858
31515 1 0 5 259 60 57.97305
2011 Sep 30
2
ggplot2 - extracting values of smooth
Suppose that I'm working on Hadley's diamond dataset and I want to
review the relationship between price, colour and carat.
I might run the following:
library(ggplot2)
#plot scatter and add some hex binning
q<-qplot(carat,price,data=diamonds, geom=c("hex"),
main="Variability of Diamond Prices by Carat and Colour")
#facet to get one scatter for
2008 Feb 06
3
counting row repetitions without loop
Hi,
I have a data frame consisting of coordinates on a 10*10 grid, i.e.
> example
x y
1 4 5
2 6 7
3 6 6
4 7 5
5 5 7
6 6 7
7 4 5
8 6 7
9 7 6
10 5 6
What I would like to do is return an 10*10 matrix consisting of counts
at each position, so in the above example I would have a matrix where,
for example, cell [4,5] contains 2 and [6,7] contains 3. At the
2012 Jan 16
3
boxplot with diamond shape
Hi,
I haven't found in R a possibility to draw a boxplot with a diamond
shape (means and CI).
Does anyone know how to plot it ?
thanks,
2008 Mar 01
2
One quick question concerning R
Just started using 'R'. Nice system. Once quick question: Is it possible to
put plot more than one series against a common 'x variable on the same plot?
In otherwords, I may want a stacked bar chart of line chart containing more
than one series. Could not figure out how to do this.
Thanks for your help.
Marc Diamond
Aviation-Software, Inc.
[[alternative HTML version deleted]]
2008 Jan 18
1
gboxplot (JMP Diamond plot in R?)
I am looking to replicate the functionality of the JMP diamond plot in R. I have found the following enhancement and no other references(see below). I have tried to contact the author via email and I have had no luck.
Does any know if this functionality exists in R? If it does not does anyone know how to contact the author of the enhancement request?
"Hi,
I experimented with a set of S
2013 Aug 06
1
[LLVMdev] Potential SimplifyCFG optimization; hammock to diamond transformation
Message: 6
Date: Tue, 6 Aug 2013 10:46:19 -0400
From: Chad Rosier <chad.rosier at gmail.com<mailto:chad.rosier at gmail.com>>
To: llvmdev <llvmdev at cs.uiuc.edu<mailto:llvmdev at cs.uiuc.edu>>
Subject: [LLVMdev] Potential SimplifyCFG optimization; hammock to
diamond transformation
Message-ID:
<CAMo3wbR6x1wBzb17=GrkERV7kvzx2RdpuheFzyxkQEs3BBvKaw at
2003 Mar 31
1
localboot not working in PXELINUX 2.02
Hello,
We're using the PXELINUX to boot remote kickstart and Linux rescue
images. Recently we got some new hardware (Compaq DL360) which
required me to upgrade from PXELINNUX 1.75 to 2.02. Everything works
fine on the new hardware, but the "localboot 0" option now just hangs
on some of our older boxes.
Specifically, our "Tyan Thunder 2510" motherboards with integrated
2008 Jan 11
4
lattice color problem with symbols: bug?
Dear useR's,
I have a problem with the lattice plotting of some symbols:
library(lattice)
test<-data.frame(x=c(2,3,1,5),u=c(rep(1,2),rep(2,2)),g=c(rep(c(1,2),2)))
xyplot(x~u,groups=g,
data=test,
par.settings=list(
superpose.symbol=list(pch=c(22, 23),cex=c(1.7,1.6),col="black")
),
key=list(
text=list(c("t1","t2")),
space =
2013 Apr 10
0
[LLVMdev] If Conversion and predicated returns
On 4/10/2013 12:45 PM, Hal Finkel wrote:
>
> Should AnalyzeBranch be enhanced to somehow indicate conditional returns?
I don't think that returns can ever be analyzable (since LLVM's CFG does
not have a designated exit block).
> Alternatively, the diamond conversion routine contains this:
>
> // RemoveExtraEdges won't work if the block has an unanalyzable branch,
2011 Feb 08
1
PXELINUX and memtest86p weirdness
Hi,
I'm having a strange problem with Memtest86+ (4.10 and 4.20 tried) from
PXELINUX on a specific type of motherboard.
When running memtest86+ 4.10 from the newest "Ultimate Boot CD"
(isolinux i reckon?) the memtest runs without errors for several passes.
But when loaded from PXELINUX it shows several hundred memory errors in
just a few minutes.
I double checked by copying the
2018 Jan 09
1
pxelinux failing to boot kernel
Can you reset BIOS settings to optimized defaults on all 3 boards? As a way
to eliminate BIOS settings differences.
On Jan 8, 2018 9:00 PM, "Greg Mitchell via Syslinux" <syslinux at zytor.com>
wrote:
Hoping to find some help debugging an issue I'm having.
I have 3 machines that are PXE booting Ubuntu. This morning they were
running 17.04 and I decided to upgrade them to