limit on the number of data point

[Namba Takaya <takayanamba@xxxxxxxxxxx>]

Dear Sir

I have the large amont of point data.
Could you tell me if I have the limit on the number of data point in 
ferret?

I tried to do this

file/var="xpos,ypos" drift.dat
show data

Whether the number of data(drift.dat) is large or small,
the size("show data")  is always 20480 in I column(not showing the exact 
number of data).
1. Could you tell me why?
2. Is 20480 the limit of the number of point? 
3. How could I make the limit larger?

Thank you in advance.

Takaya Namba

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