Correction:
g (/:@[EMAIL PROTECTED] { mean/.)&, gamma
----- Original Message -----
From: Roger Hui <[EMAIL PROTECTED]>
Date: Tuesday, October 9, 2007 14:20
Subject: Re: [Jprogramming] tacit solution wanted for the mean of quantisation
classes
To: Programming forum <[email protected]>
> g (/:[EMAIL PROTECTED]@[ { mean/.)&, gamma
>
>
>
> ----- Original Message -----
> From: "Jacobs, Jan" <[EMAIL PROTECTED]>
> Date: Tuesday, October 9, 2007 12:42
> Subject: [Jprogramming] tacit solution wanted for the mean of
> quantisation classes
> To: [email protected]
>
> > ls,
> > I've a small grey-value bitmap (gamma) and a given class
> > assignment (g),
> > see below. I need to compute the class means, but sorted in normal
> > order: first class 0, then 1 ...
> > In the example below I assume 4 classes.
> >
> > mean=:+/%#
> >
> > g=:4|>:i.2 3 NB. sample quantisation states
> > gamma=:?2 3$255 NB. sample grey-value bitmap
> >
> > mu=:(/:~.,g){(,g)mean/.,gamma
> >
> > Is there a nice tacit solution for these means (mu)?
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