Displaying 20 results from an estimated 63 matches for "maxima".

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2009 Jan 31

9

Maxima and Ruby Integration

I''m looking to write a javascript heavy clientside program with a
something serverside backend that connects to the free maxima math
program. I have extensive knowledge of ruby on rails, so I would prefer
to call Maxima with ruby, but I don''t know if this is even possible. Its
fairly easy to call Maxima (with a lisp implementation) using ANSI C, it
is a little less easy to implement using JAVA with a lisp implement...

2012 May 03

5

Finding local maxima on a loess surface

If a run a LOESS model and then produce a smoothed surface: Is there any
way to determine the coordinates of the local maxima on the surface?
[[alternative HTML version deleted]]

2017 Aug 26

1

Find maxima of a function

...mixCoeff=mc0/sum(mc0))
>
> plot(rv, to.draw.arg="d")
>
>
> I am getting 731.1345 from the code you have provide
>
>
> It is part of a code, so it was difficult to write a reproducible code
>
> I have tried to use optimr but it gives me the local maxima, now I am
> struck with the problem of how to get the global maxima
>
This is basically an optimization problem so it?s nothing to do with distr package and UnivarMixingDistribution function. Also I?m not able to install distr package because of an error. Can you create an example by rnorm...

2017 Aug 26

2

Fwd: Find maxima of a function

...m(819.2011, 57.06655),
mixCoeff=mc0/sum(mc0))
plot(rv, to.draw.arg="d")
I am getting 731.1345 from the code you have provide
It is part of a code, so it was difficult to write a reproducible code
I have tried to use optimr but it gives me the local maxima, now I am
struck with the problem of how to get the global maxima
On Sat, Aug 26, 2017 at 3:12 PM, Ismail SEZEN [via R] <
ml+s789695n4744993h60 at n4.nabble.com> wrote:
>
> > On 26 Aug 2017, at 14:18, Ulrik Stervbo <[hidden email]
> <http:///user/SendEmail...

2017 Aug 27

1

Fwd: Find maxima of a function

---------- Forwarded message ----------
From: niharika singhal <niharikasinghal1990 at gmail.com>
Date: Sun, Aug 27, 2017 at 11:57 AM
Subject: Re: Find maxima of a function
To: "David Winsemius [via R]" <ml+s789695n4745009h56 at n4.nabble.com>,
"Ismail SEZEN [via R]" <ml+s789695n4744993h60 at n4.nabble.com>, Ulrik Stervbo
<ulrik.stervbo at gmail.com>
Dear David and Ismail,
The actual problem is I am getting the pa...

2007 Nov 19

0

Using density() and turnpoint to Identify maxima in data

Hi
I have a large dataset which follows a multimodal distribution. And I
would like to identify the maxima. As the data is obtained from a
stochastic simulation, not all maxima in the data are "real maxima of
the dirstribution" but rather small random fluctuations. Unfortunately,
it is not possible for me to run more simulations to smooth the obtained
distribution.
What I am doing at the...

2017 Aug 27

1

Fwd: Find maxima of a function

...solate the problematic part from the rest of your study. Sometimes, more information does not help to solution. All the answers from us (Ulrik, David, me) are more or less are correct to find a maximum point. Newton?s method is also correct. But after answers, you only say, it didn?t find the right maxima. At this point I?m cluesless, because problem might be originated at some other point and we don?t know it. For instance, In my previous answer, my suggested solution was right for both your 2 situations. But suddenly you just said, it didin?t work for a mean greater than 6 and I?m not able to repr...

2008 Feb 21

1

Finding local maxima (height) in a matrix data (6 spatial coordinates)?

Dear all,
I wonder which R algorithm could perform a search of local maxima in
an spatial grid, in other words, having the coordinates of a map
(x,y,z... up to 6 coordinates) and then the altitude/height at each
point (h) (in total 7 numerical variables) I would like to localise
the peaks (local maxima) of that topological surface. Which R
algorithm can perform this?...

2017 Aug 27

1

Fwd: Find maxima of a function

...solate the problematic part from the rest of your study. Sometimes, more information does not help to solution. All the answers from us (Ulrik, David, me) are more or less are correct to find a maximum point. Newton?s method is also correct. But after answers, you only say, it didn?t find the right maxima. At this point I?m cluesless, because problem might be originated at some other point and we don?t know it. For instance, In my previous answer, my suggested solution was right for both your 2 situations. But suddenly you just said, it didin?t work for a mean greater than 6 and I?m not able to repr...

2006 Nov 12

9

Compiz bugs?

...whether the bugs is in compiz or somewhere else so it
would be nice if someone could confirm them. Here they are:
- on default window decoration the maximize and minimize buttons have an
unwanted black decoration on mouse over. Screenshots:
http://img.photobucket.com/albums/v27/maxima/Compiz/maximize.jpg
http://img.photobucket.com/albums/v27/maxima/Compiz/minimize.jpg
- double clicking on titlebar sometimes put window at weird state (see
screenshot), single click anywhere put window on maximize state.
http://img.photobucket.com/al...

2013 Mar 20

0

unexpected local minima/maxima with surf.gls

Hi there,
I use the surf.gls() function to fit a variable measured over a surface. When I plot the predicted surface, there are local minima/maxima in almost every coordinate where data were measured, which seems aberrant. For instance:
?? x <- c(343,293,343,243,293,343,443,543,593,243,293,343,393,443,493,543,593,143,193,243,293,343,393,443,
493,543,593,193,243,293,343,543,593,643,93,193,243,293,343,393,443,493,543,43,93,143,193,243,293,...

2017 Aug 26

1

Find maxima of a function

...7;/i.stack.imgur.com/4uUQ9.png>
Also, if I change my parameters to
mean=(2.15,2.0,2.9)
sigma=(0.1,0.1,0.1)
c=(1/3,1/3,1/3)
Then plot would change to[image: enter image description here]
<https://i.stack.imgur.com/kESYX.png>
Is there any way to find the maxima. I have tried Newton's method but it
gave me the wrong output.
Like in general some common solution, which would work on all the cases, is
needed.Can someone suggest me how can I achieve this
Thanks in advance
Niharika Singhal
[[alternative HTML version deleted]]

2017 Aug 26

1

Find maxima of a function

.... 2017, 12:57 niharika singhal <niharikasinghal1990 at gmail.com>
wrote:
> Hi
>
> Thanks for you mail,
> I really appreciate your time on my problem
>
> I have posted this problem on
>
>
> https://stats.stackexchange.com/questions/299590/to-find-maxima-for-gaussian-mixture-model
>
>
> The plot I am getting using UnivarMixingDistribution from distr package in
> R
>
> code is
>
> mc0= c(0.1241933, 0.6329082 <06329%20082>, 0.2428986 <02428%20986>)
> rv
> <-UnivarMixingDistribution(Norm(506.8644,61.02859),...

2011 Feb 09

6

clasificador estandar maximum likelihood

Hola a todos,
He echado un vistazo a alguno de los paquetes de R que incluyen clasificadores y no sonsigo encontrar ninguno que tenga alguna función para usar un clasificador de maxima probabilidad tradicional.
Alquien sabe de alguna?
Gracias
Víctor.
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2012 Jun 30

5

Máxima Verosimilitud

Hola.
Como hago para calcular la "Maxima Verosimilitud" de unos datos con
distribucion uniforme?
saludos.
--
Leo
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2003 Dec 18

3

symbolic and algebraic computation

I needed a symbolic and algebraic computation software. The best solution
I''ve found so far is maxima computer algebra system.
I was wondering if there is any R package that has similar features as
maxima''s or somebody could point me to reference manuals on how to use R for
this purpose.
Thanks,
Angel

2007 Jun 08

5

how to find how many modes in 2 dimensions case

Hi,
Does anyone know how to count the number of modes in 2 dimensions using
kde2d function?
Thanks
Pat

2004 May 28

0

MAXIMA - Hitelesítés a(z) hihetetlen csoportban

?dv?z?lj?k az Egyperces olvas?inak t?bor?ban!

2004 Aug 25

0

Eltemette az elefánt-trutyi

...f?nt tov?bb ?r?tette r? belei tartalm?t. - mondta a d?bbent rend?rs?gi nyomoz?, Erik Dern. Mivel nem volt senki, aki seg?tsen neki, ott fek?dt a tr?gya alatt legal?bb egy ?r?n kereszt?l, m?g valaki arra nem j?tt, ?s ezalatt megfulladt.
M?g t?bb ?k?rs?g?rt kattintson ide:
http://hihetetlen.maxima.hu/re/d7356290d12e696
--------------------------------------------------
?n most egy ingyenes SZINTE HIHETETLEN egypercest olvasott, ha tetszett, k?ldje tov?bb.
Ennek a lev?lnek a megrendel?s?hez k?ldj?n egy ?res levelet a subscribe@hihetetlen.maxima.hu c?mre.
A fenti ?r?s sz?rakoztat?...

2017 Jul 22

1

3-day moving average for block maxima

Dear r-users,
I would like to construct 3-day moving average for block maxima series.
I tried this:
bmthree <- lapply(split(dt, dt$Year), function(x) max(sapply(1:(nrow(x)-2),
function(i) with(x, mean(Amount[i:(i+2)],na.rm=TRUE)))))
bmthree
and got the following output.
$`1971`
[1] 70.81667
$`1972`
[1] 68.94553
$`1973`
[1] 102.7236
$`1974`
[1] 7...