Displaying 20 results from an estimated 100 matches similar to: "tolstoi.newcastle dead?"
2009 Feb 10
1
OT: did the wildfires affect tolstoy.newcastle.edu.au?
Just jumping to conclusions since the site is down as I type (7PM EST).
What's the news from that part of Australia -- thus showing my complete
ignorance of DownUnder geography.
2020 May 06
2
Unexpected behavior found in Stack Coloring pass, need clarification
Hello,
I have come across an unusual behavior where instruction domination rule is
violated "Instruction does not dominate all its uses." It concerns with
StackColoring pass present at llvm/lib/CodeGen/StackColoring.cpp. I am
reaching out to the LLVM community to help me understand the cause of this
issue and the working of the pass.
The IR produced at the end of the pass seems to be
2016 Jul 07
1
Icecast is running, but not responding
Howdy,
I work for a public radio station, and have setup several Icecast servers
in the past to stream our content. We have a new HD channel that we are
trying to stream, and the new server is vexing me.
This is a fresh dedicated server running RHEL 7.2 on a virtual system
running VMWare 6.1.
The install was done with the command yum --nogpgcheck localinstall
icecast-2.4.2-1.el7.x86_64.rpm
I
2008 Oct 08
1
follow up on "[Rd] NAMESPACE & methods guidance, please" ( http://tolstoy.newcastle.edu.au/R/e4/devel/08/06/1901.html )
This is a follow-up on the discussion originally posted on the R-devel list ( http://tolstoy.newcastle.edu.au/R/e4/devel/08/06/1901.html ), as I have encountered the exact same issue mentioned in Martin's email. Here is a simplified version of my problem:
##=================================================================
## I created a package, say, "tmpA", with a NAMESPACE with
2009 Nov 29
4
lm() notation question
Hi,
A recent thread provided a (working) construct for lm:
lm(as.matrix(freeny[ix]) ~., freeny[-ix])
Can someone explain what is meant by the formula in that expression,
that is, what does "mymatrix~." do? I couldn't find any such example
in the lm() or formula() help pages.
thanks
Carl
2008 Nov 01
2
Hidden line algorithms and a different kind of waterfall
This is not the same as the recent thread on a waterfall graph.
I'm thinking about the rolling FFT display used in acoustics and other
spectrum analysis tasks.
Here's an example of a very fancy 3-D waterfall display:
http://www.ultimaserial.com/UltimaWaterfall.html
I was just wondering if there are any simple hidden-line tools in R that
I could use to draw simple waterfall displays.
2009 Jun 18
3
How to parse and eval a collection of items
Let's say I have, for some reason, a bunch of scalars (i.e.
single-valued variables) and I want to merge them all into a single
vector of values. Can someone recommend a better function, or simpler
way, to do so than the following?
Suppose my scalars' names are foo1, foo2, foo3, foo1high, foo2high,
foo3lo2, etc. Then I can do:
>ls(pat='foo')->thels
2011 Dec 13
2
axis tick colors: only one value allowed?
Hi,
So far as I can tell, the 'col.ticks' parameter for axis() only uses the
first value provided. E.g.:
plot(0:1,0:1, col.ticks=c('blue','red','green')) #all ticks are blue
Just wondering if there's a different option in the basic plot commands
that can handle multiple colors, and also whether ggplot and/or lattice
allow for multiple tick colors.
2012 Apr 03
2
Looking for the name of a certain kind of quantile plot
Hi,
While playing with quantile-quantile plots, I wrote up some code which
plots something strangely different. Here's the pseudocode:
testhist <- hist(sample_data)
refhist <- hist(rnorm(n, mean=0,sd=1)) # for some large-ish n
cumtest <- cumsum(testhist)
cumref <- cumsum(refhist)
plot(cumref,cumtest)
This produces a straight line of slope 1 for a sample with the same
2008 Oct 14
2
list syntax question: which subscript is which
Hi,
Sorry to bother with something that should be simple, but I can't find it.
Suppose I have a list, each element of which is a 2xN dataframe, where N
could be different for each element.
Is there some simple structure to let me examine all the elements of
each element's first column? For example:
>foo
$first
[,1] [,2]
[1,] 1 4
[2,] 2 5
[3,] 3 6
$second
2011 Feb 02
4
testing randomness of random number generators with student t-test?
Hi, subject more or less says it all.
I freely admit to not having bothered to find some of the online papers
about method of testing the quality of random number generators -- but
in an idle moment I wondered what to expect from something like the
following:
randa<-runif(1000)
randb<-runif(1000)
t.test(randa,randb)$p.value
var.test(randa,randb)$p.value
[repeat ad nauseum]
Is the
2010 Aug 25
4
OT: R for iPhone/iPad OS?
No, seriously: I've had more than one person at work wonder what math
toolset could be loaded onto iOS. So, before Matlab, FreeMat,
Mathematia, SciLab, Octave, or numpy (:-) ) produces a version for iPad,
any chance someone is working on R for iPad?
2010 Jan 09
0
[LLVMdev] [PATCH] - Union types, attempt 2
On Jan 6, 2010, at 12:45 PM, Talin wrote:
> This patch adds a UnionType to DerivedTypes.h.
Cool. When proposing an IR extension, it is usually best to start with a LangRef.html patch so that we can discuss the semantics of the extension. Please do write this before you get much farther. I assume that you want unions usable in the same situations as a struct. However, how do "constant
2008 Jun 07
3
favorite useful tools?
Hi,
I'm relatively new to R, so I don't know the full list of base (or
popular add-on packages) functions and tools available. For example, I
tripped across mention of rle() in a message about some other problem.
rle() turned out to be a handy shortcut to splitting some of my data by
magnitude (vaguely like a sequence-based histogram).
So I thought I'd ask: what small, or
2011 Aug 15
2
what can one do with (to) '..." ?
I followed a couple threads from the archives and from
stackoverflow.com, and would like to know: just what is "..." ? What I
mean by this is,for example, from the point of view of a user running a
function in debug mode, is "..." an object, or does it exist in the
current environment as some thingy?
Maybe a better question to ask is: if I were to write some function
2011 Mar 30
3
how about a "<p-" operator?
I was cursing Matlab again today (what else is new) because the default
action for every Matlab command is to spew the result to the console,
and one must remember to put that darn ";" at the end of every line.
So I just wondered: was there ever a discussion as to providing some
modified version of the "<-" and "->" operators in R to do the reverse?
2011 May 02
2
easy way to do a 2-D fit to an array of data?
Hi,
I've got a matrix, Z, of values representing (as it happens) optical
power at each pixel location. Since I know in advance I've got a
single, convex peak, I would like to do a 2D parabolic fit of the form
Z = poly((x+y),2) where x and y are the x,y coordinates of each pixel
(or equivalently, the row, column numbers).
Is there an R function that lets me easily implement that?
2009 Oct 15
2
how to install JGR manually?
Here's the problem: on Windows, the 'jgr.exe' tool starts up by checking
for a connecting to the 'net in order to grab the support packages.
Well, we have machines at work that are not and never will be connected
to the Internet. I tried manually installing all the packages (JGR,
Rjava, etc) but the jgr.exe still tries to find a connection.
Is there any way around this?
2011 May 07
2
write.table vs. read.table and the argument "fill"
Just wondering how come read.table lets you specify fill=TRUE for ragged
arrays, but so far as I can tell, no equivalent for write.table?
Not a big deal, since I'm perfectly comfortable w/ write and scan and
the other file I/O goodies. "A foolish inconsistency..." and all that.
Carl
2010 Jul 07
1
SAM program and R mirror - which port to open?
To whom this may concern,
I am having issues installing a program called "SAM" (Statistical Analysis of Microarrays) which is an excel add in and requires the use of R. Due to the firewall at my hospital, R cannot connect to a mirror and therefore cannot install necessary files for the complete installation of SAM. The IT department has asked me which "port" needs to be opened