Displaying 20 results from an estimated 40000 matches similar to: "making matrix monotonous"
2005 Sep 30
2
correlation question
Dear R-helpers,
First, double apologies because the question is not
directly related to R, and also probably quite simple.
I have observed (with many data) that given 2 series X and Y
cor(X,Y) and cor(log(X), log(Y)) differs only very slightly.
I suspect this is because log(x) is monotonous,
... but I am unable to demonstrate it.
(perhaps it is also wrong ?).
Would somebody here be able and
2007 Sep 09
1
Why I reinvented the wheel with M3F
Daniel,
nobody has accused you of reinventing the wheel. You give up too
easily. If you want to develop a standard, it takes a lot of
discussion and input - and it takes diplomacy. Attacking people and
attacking the community will not be helpful.
You have asked for feedback - feedback has been given. Now it's time
to think and digest. I for one have been motivated by the topic of
discussion,
2012 May 24
0
[LLVMdev] -fbounds-checking vs {SAFECode,ASan}
Hi Kostya, I'm also curious to know where Nuno is going with this, and the
details of his design. I'm worried he might be reinventing the wheel. I'm
also worried that he may be inventing a square wheel :)
> I noticed your commits related to -fbounds-checking and have some questions.
> The functionality of this new phase seems to (partially?) overlap with
> AddressSanitizer
2009 Jan 15
14
Using ZFS for replication
Fairly new to ZFS. I am looking to replicate data between two thumper boxes.
Found quite a few articles about using zfs incremental snapshot send/receive. Just a cheeky question to see if anyone has anything working in a live environment and are happy to share the scripts, save me reinventing the wheel. thanks in advance.
--
This message posted from opensolaris.org
2005 Nov 13
1
correlating irregular time series
I have some time stamped events that are supposed to be unrelated.
I have plotted them and that assumption does not appear to be valid.
http://metrak.com/tmp/sevents.png is a plot showing three sets of events
over time. For the purpose of this exercise, the Y value is irrelevant.
The series are not sampled at the same time and are not equispaced
(just events in a log file).
The plot is
2006 May 09
1
combn(n, k, ...) and all its re-inventions
It seems people are reinventing the wheel here:
The goal is to generate all combinations of 1:n of size k.
This (typically) results in a matrix of size k * choose(n,k)
i.e. needs O(n ^ k) space, hence is only applicable to
relatively small k.
Then alternatives have been devised to generate the combinations
"one by one", and I think I remember there has been a
quiz/challenge about 20
2012 May 24
2
[LLVMdev] -fbounds-checking vs {SAFECode,ASan}
On 5/24/12 5:41 AM, Duncan Sands wrote:
> Hi Kostya, I'm also curious to know where Nuno is going with this, and the
> details of his design. I'm worried he might be reinventing the wheel. I'm
> also worried that he may be inventing a square wheel :)
I believe Nuno's goal is to prevent run-time exploitation of software.
Nuno, please correct me if I'm wrong.
And
2006 Apr 27
4
GD2 to Make Charts
I''m just getting started with GD2 and have successfully made a few
dynamic PNGs. I need to make some fairly detailed line graphs on the
fly and I know that GD2 is capable of what I want but I strongly suspect
I''m reinventing the wheel badly. Are there gems or other projects that
help creating complex charts? I''ve used GDChart in the distant past
but I
2007 Jun 08
2
Can Asterisk RAS?
I am trying to set up somthing so I can dial into my asterisk box, and
have it behave as a modem bank. Is there anything like that already, or
am I going to have to write my own. I checked googls and found no
leads, but thought I would ask here before I tried writing my own, just
to make sure I wasnot reinventing the wheel.
Thank you in advance for any responses.
-Chris
2010 Jul 28
2
Recording interface (pause/PLAY/RERECORD)
Is there a prebuild module/dialplan which gives me a nice interface to recording messages? Assuming I can't use the voicemail command, I need to offer users a way to record, playback, erase, rerecord, etc.
I can probably do it through dialplan but it feels like I'm reinventing the wheel.
Thanks,
MD
2005 Dec 21
2
C#/.NET P/Invoke wrapper or native port of libFLAC
Before I start reinventing the wheel, has anything been done or is there any work ongoing to provide a P/Invoke based interface to parts or all of libFLAC or even a native port of libFLAC to C#/.NET?
Regards,
Dave
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2011 Nov 13
2
2^k experiment generator
Hello,
While looking for info on 2^k experimental design and anova I remember I saw somewhere there was a function to generate all the experiments. I can't find the function anymore can anyone suggest?
The function takes as input the factors and levels and generates all the experiments. I know I can do it myself using recursion but I want to avoid 1) reinventing the wheel and 2) making
2008 Apr 02
2
[LLVMdev] Proposal for GSoC project for clang front end
On Wednesday 19 March 2008 21:27:18 Chris Lattner wrote:
> On Wed, 19 Mar 2008, Argiris Kirtzidis wrote:
> > I'd like to hear your opinions and ideas for a proposal to improve
> > support for C++ parsing for LLVM's clang front end.
>
> Some meta feedback: C++ support in clang is a huge project, far and away
> more than any mortal can get done in a summer. While it
2023 Dec 01
2
Mann Kendall mutation package?
Hello - does anyone know whether there are any packages for Mann-Kendall
mutation tests in R available? The only one I could find online is this
MK_mut_test: Mann-Kendall mutation test in Sibada/sibadaR: Sibada's
accumulated R scripts for next probably use to avoid reinventing the wheel.
(rdrr.io) <https://rdrr.io/github/Sibada/sibadaR/man/MK_mut_test.html> but
there doesn't seem to
2009 Jun 01
2
[LLVMdev] Questions about LLVM
Dear list,
I am learning LLVM and would like to add JIT support to the F-Script
language. F-Script is a Smalltalk like scripting language that lives in the
Objective-C runtime. It is written by Philippe Mougin.
The goal is for me to become more familiar with LLVM, and learn about the
conclusions we can draw in terms performance improvements (or degradation
!), possible optimizations, etc. So
2008 Jan 29
2
A "safe" do.call
Has anyone developed a version of do.call that is safe in the sense
that it silently drops parameters that do not appear in the formals of
the called function? This is useful when ... ends up being used in
multiple further functions. e.g.
f <- function(a, b) {a + b}
do.call(f, list(a=1, b=2, c=3)) # Errors
safe.call(f, list(a=1, b=2, c=3)) # Returns 3
If have quickly thrown together the
2012 May 25
0
[LLVMdev] -fbounds-checking vs {SAFECode,ASan}
On Thu, May 24, 2012 at 9:23 PM, John Criswell <criswell at illinois.edu>wrote:
> On 5/24/12 5:41 AM, Duncan Sands wrote:
> > Hi Kostya, I'm also curious to know where Nuno is going with this, and
> the
> > details of his design. I'm worried he might be reinventing the wheel.
> I'm
> > also worried that he may be inventing a square wheel :)
>
>
2008 Jan 29
1
Conditional kernel selection based on CPUID/DMI info
I'm network booting various systems via PXE using pxelinux, and I
would like to select a specific kernel and kernel options based on the
type of CPU and/or type of system (PAE, 64bit, vmx, etc.). I see that
some of this capability is present (e.g. Erwan Velu's nice
cpuid/dmi/pci code), but the infrastructure to make use of this
information in the config file is missing. It looks like it
2009 Apr 07
0
[LLVMdev] Patch: MSIL backend global pointers initialization
Artur,
> OK, I just need the same signature for both of those instructions.
Both are callinsts of same function, isn't that enough? Since it's a
variadic function there is also a bitcast to proper type. So, looking
for type of callee (not result, but function type!) you'll obtain the
real "signature" of callee and if you'll strip all pointer cast you'll
obtain the
2002 Jul 08
2
Methods/package for working with sets and intervals
Before reinventing the wheel, is there a package for working on (nice)
sets and intervals, where one can for instance check if a set of intervals
contains a scalar, taking the union and intersection of some intervals
etc?
Example:
# Defining the set i = [1,2) + [3.5, 10]
i <- c(1,2, 3.5, 10)
attr(i, "include") <- c(TRUE, FALSE, TRUE, TRUE)
x <- 0:12
# Get