Maptitude - http://research.umbc.edu/~roswell/maptitude.html
Mike.
The best way to do this is to pre-process the information on a program
like Excel, or some statistic packages. The result of this processing
should be a file (in a format Maptitude supports -dbf, txt, etc.)
containing lat-long for each sample point, and the statistical parameters
you need for each point (sum, avergae, etc)
The simplest way to do it within Mapt. what you need us to join the point
file to a table having as many fields as the maximum number of
observations you expect to have for each sample point; then create a
Formula Field using to represent the parameter yu need to mpa (be aware
that if you need to calculate medias, standard deviations and so on you
will need to use the statistical functions in maptitude, which in some
cases involve the use of arrays).
A more complex way within maptitude involves using ODBC to use a database
manager with which you could define a one-to-many relationship.
Good Luck.
Armando Scalise
Michael Powell wrote:
> Maptitude - http://research.umbc.edu/~roswell/maptitude.html
>
> Kevin:
> I'm assuming what you've done is geocoded the points
> to some sort of property file. What I would do is
> overlay the point layer with a polygon layer (perhaps
> of properties, if you have them), and use the COUNT
> function to calculate the number of occurences within
> each individual property. Then you can either label
> the features with that number OR create a symbol map
> by the COUNT field in the polygon layer.
> Hope this helps, maybe Caliper or someone else has
> some other ideas.
>
> Mike
> --- kbyrnes <[EMAIL PROTECTED]> wrote:
> > Maptitude -
> > http://research.umbc.edu/~roswell/maptitude.html
> >
> > I have a file that involves multiple observations
> > (records) at common
> > locations. Is there a technique in Maptitude for
> > displaying each unique
> > location and the number of records which share that
> > common location?
> > As an example, suppose a file of residential
> > addresses included multiple
> > residents from many different apt. bldgs. as well as
> > lots of records for
> > single-family homes. The desired map would be the
> > point locations of all
> > the unique addresses and either:
> >
> > * a label representing the number of records for
> > each unique location
> > or
> > * a thematic symbol at each location representing
> > a range in the
> > number of records (e.g. 1, 2-5, 6-10, etc.)
> >
> > I'd appreciate any ideas anyone might have on how to
> > approach this
> > problem.
> >
> > Thanks
> > Kevin Byrnes, Demographer
> > Virginia Dept. for the Aging
> >
> >
> >
> >
> >
> ______________________________________________________________________
> > To unsubscribe, write to
> [EMAIL PROTECTED]> begin:vcard
> > n:Byrnes;Kevin
> > tel;fax:804-662-9354
> > tel;home:804-270-1454
> > tel;work:804-662-7047
> > x-mozilla-html:FALSE
> > adr:;;1600 Forest Avenue, Suite
> > 102;Richmond;VA;23229;USA
> > version:2.1
> > email;internet:[EMAIL PROTECTED]
> > title:Demographer
> > fn:Kevin F. Byrnes
> > end:vcard
> >
>
> __________________________________________________
> Do You Yahoo!?
> Get email at your own domain with Yahoo! Mail.
> http://personal.mail.yahoo.com/
>
> ______________________________________________________________________
> To unsubscribe, write to [EMAIL PROTECTED]
______________________________________________________________________
To unsubscribe, write to [EMAIL PROTECTED]
