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Date Posted: 05:05:46 01/25/04 Sun
Author: jedicat
Subject: Re: a question about pudding
In reply to: pshaughn 's message, "Re: a question about pudding" on 20:21:54 01/24/04 Sat

Thank you for your suggestions. For a preliminary field study, I took some samples of pudding that were growing lumpy in my basement, followed your directions for mapping to a 2d matrix (I couldn't quantitize at the pixel level, so I used Chex instead), and calculated their determinants, but Pearson's chi-square test tells me that my data is not significant. Using a larger sample size did not affect those results.

Hrm...

>
>It occurs to me that the most obvious mappings would
>consist of projecting onto a 2d plane, cropping to
>finite area as tightly as possible without excluding
>any pudding, and quantizing at the pixel level... I
>strongly suspect that for infinitely many such planes
>it'd be invertible, but I don't know if it'd be
>non-invertible for infinitely many, finitely many, or
>zero. Possibly it'd depend on the point in time at
>which one takes the projection.

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