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Thread Subject:
pdf for jointly gaussian

Subject: pdf for jointly gaussian

From: Ronald Yu

Date: 25 Oct, 2010 00:05:05

Message: 1 of 3

I am a new user to matlab,
I am trying to show pdf for two jointly gaussian.
If both random variables have zero means, and ρ = 0.8, σ1 = 1, σ2 = 10.
how should i write this program?

Subject: pdf for jointly gaussian

From: Richard Startz

Date: 25 Oct, 2010 01:44:47

Message: 2 of 3

On Mon, 25 Oct 2010 00:05:05 +0000 (UTC), "Ronald Yu"
<yuchengzon@hotamil.com> wrote:

>I am a new user to matlab,
>I am trying to show pdf for two jointly gaussian.
>If both random variables have zero means, and ρ = 0.8, σ1 = 1, σ2 = 10.
>how should i write this program?

If you have the statistics toolbox
doc mvnpdf

-Dick Startz

Subject: pdf for jointly gaussian

From: Roger Stafford

Date: 25 Oct, 2010 01:50:04

Message: 3 of 3

"Ronald Yu" <yuchengzon@hotamil.com> wrote in message <ia2hjh$d1g$1@fred.mathworks.com>...
> I am a new user to matlab,
> I am trying to show pdf for two jointly gaussian.
> If both random variables have zero means, and ρ = 0.8, σ1 = 1, σ2 = 10.
> how should i write this program?
- - - - - - - - - - -
  It is not clear what program you wish to write. What do you want to accomplish? At the website

 http://en.wikipedia.org/wiki/Multivariate_normal_distribution

there is a specific formula given for the two-variable density function you are asking about. Are you trying to plot the distribution using 'surf'?

Roger Stafford

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