zz: "New files" in ZigZag [correct

[Ted Nelson <ted@xxxxxxxxxx>]

Hi Jun--

>Is there any files like "new file"?

Yes.  Remember that ZZ always works on a file called
 "zigzag.data" if you call it by itself, as follows:
zigzag 
 If the file "zigzag.data" already exists, it will be opened.
 If "zigzag.data" does not already exists, it will be created.

However, IF you call ZZ with another filename, like this--
zigzag whatever
 then it will operate on file "whatever".  The same as with
 "zigzag.data",
 If the file "whatever" already exists, it will be opened.
 If "whatever" does not already exists, it will be created.
 
>If there is not "new file," can I delete those data
>that had been already placed?  

You can of course delete the existing "zigzag.data".

>Maybe just to "overwrite" is
>another option...

If you overwrite the whole file, that works.  It would
 be a lot of trouble to open a file and overwrite its cells
 one at a time!

Best, TN


At 10:15 PM 10/7/98 +0900, you wrote:
>Dr. Nelson:
>
>I got some questions from a student in your class via e-mail
>today.  Most of the part were about to manipulate ZIGZAG program
>but there was one question I can't give him proper idea
>because I got a same problem, too...
>
>When I downloaded a zz file "zzdata050.zz," and opened it,
>there had been already some sort of data in it, it seemed
>like what you had typed as demo on class last week.
>How can I deal with this?  Is there any files like "new file"?
>If there is not "new file," can I delete those data
>that had been already placed?  Maybe just to "overwrite" is
>another option...
>
>Please let me have idea to resolve this problem.
>
>Very best regards. 
>Jun D. Saeki
>
>mailto:j-david@xxxxxxxxxx
>URL: http://www.d-plug.com/
>
>
____________________________________________________
Theodor Holm Nelson, Visiting Professor of Environmental Information
 Keio University, Shonan Fujisawa Campus, Fujisawa, Japan
 Home Fax from USA: 011-81-466-46-7368  (If in Japan, 0466-46-7368)
Professorial home page http://www.sfc.keio.ac.jp/~ted/ 
_____________________________________________________
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 Tel. 415/ 331-4422, fax 415/332-0136  
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PERMANENT E-MAIL: ted@xxxxxxxxxx
_____________________________________________________
Quotation of the day, 98.10.05:
"All you have to do to work on ZigZag is fully unscrew your head
and put it down in a safe place where it can be sure to watch you."
TN 98.09.25