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This sounds like voodoo statistics to me. Can you suggest any mathematical basis for choosing an I/sig(I) limit of 2 rather than some other number?

funny you should say that, as the mathematical procedure does indeed involve some voodoo-mathics ! it goes roughly as follows:

  * take your age
  * stick this number of pins into a doll made to look like the referee
    of your paper
  * multiply by the number of legs that a goat has (mode, not average !)
  * slit the goat's throat and wash yourself in the blood
  * utter some incantations (preferably in pidgin, although french will do)
  * divide by the number of legs that a chicken has (mode again)
  * bite the chicken's head off (but don't swallow it !)
  * divide by your age

if you have some pins, a goat and a chicken handy, you can easily verify the calculations for yourself ! (if you don't have any pins, you can probably skip that step, although you might end up with a purple pine-apple growing out of your head)


empirical DPI indices

speaking of voodoo ! has anyone ever shown that DPI correlates with anything (say, information content) ?


        I've recently seen some papers report "optical resolution".
        Where does that number come from?

SFCHECK


--DooVooDoo

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                        Gerard J.  Kleywegt
    [Research Fellow of the Royal  Swedish Academy of Sciences]
Dept. of Cell & Molecular Biology  University of Uppsala
                Biomedical Centre  Box 596
                SE-751 24 Uppsala  SWEDEN

    http://xray.bmc.uu.se/gerard/  mailto:[EMAIL PROTECTED]
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   The opinions in this message are fictional.  Any similarity
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