Exploring the predictive analysis dialog box – Pitney Bowes MapInfo Vertical Mapper User Manual
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Chapter 9: Data Analysis
User Guide
171
regions representing a high crime rate “1,” and the regions representing a low crime rate “2.” Any
region assigned a value of 0 in this column will not be included in the analysis.
This table is the “teaching table.” The colours that you assign to the regions will be used for
displaying the results.
3. From the Vertical Mapper menu, choose the Data Analysis > Predictive Analysis command.
4. In the Predictive Analysis dialog box, clear any grids you do not want to include in the analysis.
5. From the Teaching Table list, choose the name of the table that contains the region objects you
want to use for your analysis.
6. From the Class Column list, choose the name of the column that contains the integer value
defining the “class” of the region.
7. In the Weighting section, choose one of the following:
•
Statistical The grids are weighted automatically according to statistical calculations.
•
User Enables you to specify how grids should be weighted; when you choose this option, a
new column is added to the list of grids where you can enter the weight of each of the grids.
•
None No weighting is applied; the grids are treated as having equal importance.
8. In the File Name box, type a new file name or accept the default.
9. Click the OK button.
Exploring the Predictive Analysis Dialog Box
The Select Grids to Analyze list enables you to clear any open grids you do not want to be included
in the analysis.
The Weight section enables you to choose a method for weighting. These options are available:
Statistical the grids are weighted automatically according to an appropriate statistical
calculation.
User enables you to specify how grids should be weighted; when you choose this option, a new
column is added to the list of grids enabling you to specify the weight.
None no weighting is applied; the grids are treated as having equal importance.
The Teaching Table list enables you to choose the table containing the regions to use for teaching.