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Re: TransformedDistribution result not expected

• To: mathgroup at smc.vnet.net
• Subject: [mg130739] Re: TransformedDistribution result not expected
• From: Bob Hanlon <hanlonr357 at gmail.com>
• Date: Wed, 8 May 2013 04:11:12 -0400 (EDT)
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• References: <20130507075348.8F10469C4@smc.vnet.net>

You used ax (single variable) instead of a*x (explicit multiplication of
two variables) or a x (space for impicit multiplication).

TransformedDistribution[a x + b,
    x \[Distributed] NormalDistribution[mu, Sigma]]

NormalDistribution[b + a mu, Sigma Abs[a]]


Bob Hanlon



On Tue, May 7, 2013 at 3:53 AM, Shaun Werkhoven <shaunwerkhoven at gmail.com>wrote:

>
> Sorry if this question is too simple, I'm new to Mathematica. If I enter
>
>
> TransformedDistribution[ ax + b, x\[Distributed]NormalDistribution[u,
> Sigma]]
>
> I get
>
> TransformedDistribution[ax + b, x\[Distributed]NormalDistribution[u,
> Sigma]]
>
> instead of what is expected as per the website examples
>
> NormalDistribution[au + b, Sigma(Abs(a))]
>
>
> Thanx, Shaun
>
>
>

• References:
  • TransformedDistribution result not expected
    • From: Shaun Werkhoven <shaunwerkhoven@gmail.com>