Page History

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1. In the Contents pane, right-click the HPDBeats_North layer and select Remove.
2. In the Contents pane, right-click the HPDBeats_South layer and select Remove.
3. On the toolbar, click the Save button.

Dissolve

As explained in the tutorial introduction, the collaboration with the schools is going to be based on the police districts, not the police beats. At this point, your HPD layer only displays the police beat boundaries, but its attribute table does tell you the district number corresponding to each beat.

1. In the Contents pane, right-click the HPD_Beats layer and select Attribute Table.

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1. In the Contents pane, right-click the HISDElemSchools_HalfMileBuffer layer and select Remove Remove.
2. In the Contents pane, right-click the HPDCrime2010_HISD layer and select Remove Remove.
3. Click the HISDElemSchools_HalfMileBuffer_WithCrimeStats layer to select it.
4. Under Feature Layer, on the Appearance tab, in the Drawing group, click the drop-down arrow under Symbology.
5. Under ‘Symbolize your layer by quantities’ click Graduated Colors.
6. In the For ‘Field:’ box,  click the use the drop-down arrow and menu to select the Join_Count field.
7. In the ‘Color Scheme:’ box, leave the default selection of Graduated colors.
8. Under the Upper Value column, click the first upper value box 27.000000 and type “25” and press Enter to move to the next range.
9. Type “50” and press Enter.
10. Type 100” and press Enter.
11. Type 150” and press Enter.
12. Type 200” and press Enter.

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1. In the Contents pane, uncheck the HISDElemSchools_HalfMileBuffer_WithCrimeStats layer and check the HISDElemSchools layer.

At this point, only the elementary school point locations and the police district boundaries should be visible.

1. In the Contents pane, right-click the HISDElemSchools layer and select Attribute  Attribute Table.
2. Scroll to the right and browse through all of the attributes.

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1. Close the attribute table.
2. In the Contents pane, right-click the HISDElemSchools layer and select Joins  Joins and Relates > Spatial Join.
3. For ‘Join Features’, use the drop-down box to select the HPDDistricts_HISD layer.
4. For ‘Merge Rule,’ click the drop down arrow to select Join.
5. For ‘Output Feature Class,’ rename the feature class from “HISDElemSchools_SpatialJoin” to “HISDElemSchools_WithHPDDistricts.”
6. Click Run Run.

The new layer should appear at the top of your Contents pane. 

1. Right-click the HISDElemSchools_WithHPDDistricts layer and select Attribute  Attribute Table.
2. Scroll to the right and notice the newly added District field. The District field tells you which police district each school falls within.

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Click on the first tool that says Buffer (Analysis Tools) to open ththe tool.