Pitney-bowes MapInfo Vertical Mapper Manual de usuario Pagina 175

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Aggregating Data
There are two methods of data aggregation: simple point aggregation and point
aggregation with statistics.
This section discusses:
when to aggregate data
how to aggregate data using simple point aggregation
how to aggregate data using point aggregation with statistics
In this chapter:
Aggregating Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174
When to Aggregate Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174
Techniques for Data Aggregation . . . . . . . . . . . . . . . . . . . . . . . . .174
Simple Point Aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
Point Aggregation with Statistics . . . . . . . . . . . . . . . . . . . . . . . . .177
Building a Table of Standard Deviation Ellipses . . . . . . . . . . . . .183
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