Maptitude - http://research.umbc.edu/~roswell/maptitude.html
but wouldn't you also need to change the table definition to integer?
bob
> -----Original Message-----
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> Sent: Friday, July 10, 2893 6:44 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [Maptitude] Merging by Value & Data Aggregation
>
>
> Maptitude - http://research.umbc.edu/~roswell/maptitude.html
>
> If you think the data might be causing this, multiply the floating point
> numbers by 1,000 or 100,000 or whatever to get rid of the decimal point.
> Do all of the processing, and at the end, divide your results by the same
> factor. This way, Maptitude math will have to work only on integers.
>
> John
> DigiMAP
>
> [snip]
> > same result....a fatal "floating point error" which crashes the system.
> > I assume this may be the result of calculating averages where the
> > attempted arithmetic involves a division by zero. Does anyone have a
> > suggestion of a solution/work-around, etc? I only really care about
> > aggregating population counts or projections for selected older cohorts
> > to get a feel for the older demographics of each watershed.
> >
> > Any suggestions from more-informed Maptitude users would be appreciated.
> >
> > Kevin Byrnes, Demographer
> > Va. Dept. for the Aging
> >
> >
> >
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