Displaying 20 results from an estimated 800 matches similar to: "HTB Weird Shaping Question(Bug?). Please Help!"
2015 Jan 29
0
[RFC PATCH v1 2/2] armv7(float): Optimize encode usecase using NE10 library
Hi Timothy,
Appreciate the comprehensive code review.
The biggest issue I see is the peak stack usage.... rest looks like
fairly straight forward cleanup.
Is the peak stack usage a complete blocker in current form?
If it is indeed a blocker, would it be acceptable if we can reduce
additional buffer requirement from 2 buffers (current) to 1, possibly
by moving scaling inside
2007 Jul 10
2
integration over a simplex
Hello
The excellent adapt package integrates over multi-dimensional
hypercubes.
I want to integrate over a multidimensional simplex. Has anyone
implemented such a thing in R?
I can transform an n-simplex to a hyperrectangle
but the Jacobian is a rapidly-varying (and very lopsided)
function and this is making adapt() slow.
[
A \dfn{simplex} is an n-dimensional analogue of a triangle or
2004 Jan 14
4
re hardware requirement - asterisk
I have just checked the Openbsd box on the if interface.
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
address: 00:02:55:30:54:28
media: Ethernet autoselect (100baseTX full-duplex)
status: active
inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
inet6 fe80::202:55ff:fe30:5428%fxp0 prefixlen 64 scopeid 0x1
xl0:
2009 Jun 19
2
Manipulate solution of simplex
Hi,
I need some help. I'm doing a project that demands me to obtain several
simplex solutions and I would like to can keep the solution in a vector or
something to be able to use it after I get it.
The comand simplex() prints the solution but how can I keep it?
Another alternative would be to export it to excel, how can I do this?
I just see the solution and have to note it on a paper or
2015 Jan 29
2
[RFC PATCH v1 2/2] armv7(float): Optimize encode usecase using NE10 library
Viswanath Puttagunta wrote:
> if OPUS_ARM_NEON_INTR
> CELT_ARM_NEON_INTR_OBJ = $(CELT_SOURCES_ARM_NEON_INTR:.c=.lo) \
> - %test_unit_rotation.o %test_unit_mathops.o
> -$(CELT_ARM_NEON_INTR_OBJ): CFLAGS += $(OPUS_ARM_NEON_INTR_CPPFLAGS)
> + $(CELT_SOURCES_ARM_NE10:.c=.lo) \
> + %test_unit_rotation.o %test_unit_mathops.o \
> +
2002 Nov 22
1
simplex problem (PR#2317)
Full_Name: George F. LeCompte
Version: 1.6.1
OS: Windows 98
Submission from: (NULL) (208.8.162.161)
This may be a newbie problem. I am attempting tor unt the simplex routine from
the boot package. The example code doesn't find simplex. What's wrong here?
> help(simplex,package=boot)
> # from the resulting article
>
> # This example is taken from Exercise 7.5 of
2004 Jan 15
2
re: hardware requirement asterisk
This is ifconfig on openbsd box:
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
I think this output shows that the fxp0 interface is on simplex mode.
The voice degradation I referred was by using xlite soft phone. I open 2
line similtaneously and dial to FWD and back to my incoming extension.
Xlite is runnning on a w2k box with realtek 100M nic in auto mode. I can
2009 Oct 10
2
Nelder-Mead with output of simplex vertices
Greetings!
I want to follow the evolution of a Nelder-Mead function
minimisation (a function of 2 variables). Hence each simplex
will have 3 vertices.
Therefore I would like to have a function which can output
the coordinates of the 3 vertices after each new simplex
is generated. However, there seems to be no way (which I can
detect) of extracting this information from optim() (the
2009 Dec 08
1
Simplex Density Plots
Hello,
I have just started using R, and have found it quite easy to make
plots of probability densities for normal and beta distributions, etc.
Now, I'm looking at trying to make a simplex plot of a Dirichlet
density, but have gotten stuck and was hoping that someone could help.
Ideally, the plot would look something like the 3d plots on Wikipedia here:
2012 Sep 17
2
Constraint Optimization with constrOptim
Hi,
I am having trouble using constrOptim. My target is to do a portfolio optimization and there some constraints have to be fulfilled.
1) The weight of each share of the portfolio has to be greater than 0
2) The sum of these weights has to be 1
I am able to fulfill either the first or the second constraint but not both.
One simple way would be to fulfill the first constraint by using optim as
2008 Dec 11
2
Simplex function in R
I have a set of linear equations and would like to find any feasible solution. A simplex solution works in Case 1 below, but not in Case 2. I would be grateful for any help.
Case 1: Find any feasible solution for the set of linear equations:
a + b + c = 5
a + b + 0c = 4
0a + b + c = 4
Solution - a feasible (and unique) solution is a=1, b=3, c=1.
The following R code
2008 May 28
3
7-STABLE: bridge and em
Hello list!
When em0 has an inet address while bridge0 doesn't, it seems to be OK:
-----
bs1% uname -a
FreeBSD bs1.sp34.ru 7.0-STABLE FreeBSD 7.0-STABLE #0: Sun May 25 20:15:26 MSD 2008 root@bs1.sp34.ru:/usr/obj/usr/src/sys/BSM i386
bs1% ifconfig em0; ifconfig tap0; ifconfig bridge0
em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
2006 Oct 08
2
Error Correcting Codes, Simplex
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2004 Jan 15
2
re: hardware requirement -asterisk
Referring to my previous post about degradation of voice quality when
having more than 2 connection.
The actual route is:
pc xlite -> local asterisk box -> iaxtel -> local asterisk
I have tried out a different situation:
pc xlite -> local asterisk box -> iaxtel
and the second connection
pc xlite -> local asterisk box -> iaxtel -> local asterisk
The same degradation
2003 Oct 11
1
Simplex "Out of Bounds" Error
I am running the following code (testing the use of the simplex function to
determine if a point is in the convex hull of another set of points or not):
>a <- c(0, 0)
>A3 <-matrix(c(1,2,3,4,1,1), ncol = 2, byrow = T)
>b3 <-c(1.5, 3.5, 1)
>simplex(a = a, A3 = A3, b3 = b3)
and the following error message appears:
Error in simplex1(out1$a[1:(n + m1 + m2)], out1$A[, 1:(n + m1
2005 Mar 11
1
Simplex(boot) returning invalid answer
In trying to use simplex() from the boot package, I have run into a
situation that doesn't seem like it should be possible. It is claiming
that it has solved the LP, but returns a vector of all zeros, which
does not satisfy the constraints I passed in. A small example:
> ubMatrix <- matrix(c(1,1,-1,0,-1,-1), 3, 2)
> ubVector <- c(2,1,-1)
> objective <- c(0,1)
>
2007 Nov 30
1
simplex projection and S-Map
I am interested in using the nonlinear forecasting techniques developed
by Sugihara et al. In particular the simplex projection and the S-Map
(see this website for details and reprints: http://iod.ucsd.edu/simplex/ ).
I've looked through CRAN but could not find any package with functions
that allow such analysis.
Any pointers?
Thanks,
Manu
2001 Oct 03
1
tiny typo in optim/N-M documentation (PR#1109)
In the optim() documentation, the control parameter "maxit" says
"There is no other stopping criteria." That should be "are", or
"criterion" ...
While I'm at it -- poking at the code a little bit, it looks as if the
initial simplex is set from the initial point by displacing each
parameter value by max(0.1,0.1*pmax(fabs(Bvec))), where Bvec is the
2006 Oct 10
4
generate random numbers that sum up to 1
As I have previously asked, in response to a similar
question: Is this a homework problem?
cheers,
Rolf Turner
rolf at math.unb.ca
2004 Jun 15
1
any linear programming routine in R
Dear all
is there any linear programming routine available for R?
if not, can you suggest any alternatives? not need to be very powerful, I
get only a samll problem to resolve.
many thanks
yong