Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2004
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

Asymmetric quadratic coefficient problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg49864] Asymmetric quadratic coefficient problem
  • From: "Xiao Huang" <xiaohda at hotmail.com>
  • Date: Wed, 4 Aug 2004 10:46:56 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Dear All,

Does any one know how to deal with asymmetric quadratic coefficient in 
QuadraticFormDistribution[ {A,b,c}, {mu, sigma}] for z'Az+b'z+c?
Mathematica assumes A is a symmetric matrix, but I now have an asymmetric 
and singular matrix A.

Also, I'd really appreciate if any expert here can give me some 
clue/reference about the following problem: how can I calculate different 
quantiles of a mixture distribution? One way is to do the simulation, but is 
it possible to use the function Quantile[.] in Mathematica? if yes, how?

Thank you!

Xiao

_________________________________________________________________
Overwhelmed by debt? Find out how to ?Dig Yourself Out of Debt? from MSN 
Money. http://special.msn.com/money/0407debt.armx


  • Prev by Date: Re: Failure to Evaluate?
  • Next by Date: Re: Failure to Evaluate?
  • Previous by thread: Re: NonlinearFit
  • Next by thread: Re: Asymmetric quadratic coefficient problem