Displaying 20 results from an estimated 1000 matches similar to: "Hidden line algorithms and a different kind of waterfall"
2008 Oct 31
4
Help needed with Waterfall plot
Hi friends,
I need suggestions/directions on how to producing a waterfall plot for present extend of change in tumour size for a set of respondents in a study. Example of use of waterfall plot is in the following slides presented at ASCO 2007 by Axel Grothey. Link is
2009 Feb 03
2
ThinkCell type waterfall charts in R?
Hi all,
with PowerPoint and ThinkCell one can draw something they call waterfall
chart and it looks like this:
http://www.think-cell.com/products/images/waterfall.gif
I found discussions on waterfall charts in the archive of this
mailinglist, but unfortunately they looked totally different. Other
names for this type of plot seem to be bridge chart, cascade chart,
stair case chart, etc. but
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 Nov 05
0
Solution to managing an entire directory in a "waterfall" configuration
The subject may not make a lot of sense so let me try and explain.
I''ve searched the archives and come up short so my apologies if this
has indeed been addressed before.
I have a function that looks like this:
define remotedir($mode, $owner, $group, $source, $ensure = directory,
$recurse = inf) {
file {
$name:
mode => $mode,
owner
2019 Aug 26
3
CentOS 8 will be released soon?
Le 25/08/2019 ? 23:07, Stephen John Smoogen a ?crit?:
> I have had several people explain to me that my comments were
> out-of-place and out-of-turn. When I wrote them originally I thought I
> was going from experience of previous releases and thought I was being
> matter of fact. In rereading I realized I was crass and grumpy. My
> un-reserved apologies for that. I should have
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
2015 Oct 06
3
[RFC V3 7/8] armv7, armv8: Optimize fixed point fft using NE10 library
I'm trying to get these cleaned up and landed, but I'm running into
some trouble with this patch. Using commit a08b29d88e3c (July 21) of
Ne10, I'm seeing test failures for 60-point FFTs:
nfft=60 inverse=0,snr = -3.312408
** poor snr: -3.312408 **
nfft=60 inverse=1,snr = -16.079597
** poor snr: -16.079597 **
All other sizes tested appear to work fine (84 to 140 dB of SNR). This
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 Nov 12
0
[LLVMdev] Need help reading the LLVM Buildbot results
On Mon, Nov 12, 2012 at 7:03 AM, David Tweed <david.tweed at arm.com> wrote:
>> I don't believe so - I think only a certain sliding window of logs are
>> kept (& I don't know of an easy way to view a particular revision
>> across the bots either)
>
> For me a bigger issue has been inability to see a long list of results for a
> particular builder (say,
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
2004 Aug 06
3
project 'Sphinx' kicked off
> I had the idea of implementing a lot of the operations in FFTs. ( for
> example, it is possible to do auto-correlation and FIR filtering using
> FFTs.) There are two advantages to this.
> 1. It's almost always faster
> 2. By swapping fft implementations, it could be easy to recompile for
> fixed or floating point versions.
No. FFT's require higher precision than
2010 Nov 03
1
NFFT on a Zoo?
I have an irregular time series in a Zoo object, and I've been unable to
find any way to do an FFT on it. More precisely, I'd like to do an NFFT
(non-equispaced / non-uniform time FFT) on the data.
The data is timestamped samples from a cheap self-logging
accelerometer. The data is weakly regular, with the following
characteristics:
- short gaps every ~20ms
- large gaps every ~200ms
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?
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?
2012 Nov 10
6
[LLVMdev] Need help reading the LLVM Buildbot results
>From r167602 and onwards I get a fail in 'make check-all' for llvm+clang, built with gcc-4.7.1 (but not with clang-3.1) on Linux x86_64:
Failing Tests (1):
Clang :: CodeGenCXX/mangle-ms-templates.cpp
clang: /dev/shm/uabpath/master/include/llvm/Support/Casting.h:208: typename llvm::cast_retty<To, From>::ret_type llvm::cast(const Y&) [with X =
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?