Desagregación de los beneficiarios de los subsidios por variables clave

You will determine the number of potential users located in a second best server sector coverage area by using the Demographic Analysis tool. You can then use this information to adjust your sector characteristics according to the location and number of users you want to service. Using the

Ensure that these tables are closed before you proceed with the next exercise.

Demographic Analysis tool, you will generate a contour map (a vector grid) of the areas, from which you can obtain the number of potential users in each area. This contour map is based on population distribution by census region (a vector file) and on best server sector areas (a classified grid). The calculation to determine number of users in a sector area assumes a uniform distribution of users in a census region. When the census region size is smaller than the cell size, the cell takes on the value of the region. The resulting data for numeric grids is calculated as a value per number of cells. Calculating the result in this manner minimizes data loss due to the analysis.

To open the census file

1 Choose File ➤ Open Table.

The Open Table dialog box opens.

2 Choose the Planet EV Training\General\Pop Stats folder, click the CTRL button, then choose the BestServFS_Prj_NY18_reclass.tab and Census Tracts NYNJ.tab files.

3 Click Open.

To perform a demographic analysis

1 Choose Tools ➤ Demographic Analysis Tool.

The Demographic Analysis Tool dialog box opens.

2 Click Browse next to the Classified Grid box.

3 In the Choose A Classified Grid dialog box, choose Planet EV Training\General\Pop Stats folder, choose the BestServFS_Prj_NY18_reclass.grc file, and click Open.

4 Click Browse next to the MapInfo Table box.

5 In the Choose A MapInfo Table dialog box, choose Planet EV Training\General\Pop Stats folder, choose the Census Tracts NYNJ.tab file, and click Open.

6 In the Demographic Analysis Tool dialog box, click Next.

7 From the Demographic Data Column list, choose POP_ALL, and click Next.

8 In the Output Format section, enable the check boxes for Table and

Contour.

9 In the Output Data Type section, choose the Distribution option, and click Next.

10 In the Demographic Analysis Tool dialog box, choose the Planet EV Training\General\Pop Stats folder, and click Generate. A browser table and the contour map window open.

To view the contour in the Map window

1 In the Windows data window, expand NY_Training_Sites,...,, right-click Census Tracts NYNJ, choose Remove.

2 Right-click NY_Training_Sites,..., and choose Add Layer.

3 In the Add Layer dialog box, from the Open Layers list, choose DMG_C_Dis_Census Tracts NYNJ_P, and click OK.

4 Right-click the NY_Training_Sites Map window, and choose

Layer Control.

5 In the Layer Control dialog box, choose DMG_C_Dis_Census Tracts NYNJ_P, and click Display.

6 In the Display Options dialog box, enable the Style Override check box, and click the polygonal region.

7 In the Fill section of the Region Style dialog box, click the down arrow next to the Pattern box, and choose N.

8 In the Border section, click the down arrow next to the Color box, and choose a red color swatch.

9 In the Width section, click the down arrow next to the Pixels box, and choose a line thickness of 2.

10 Click OK.

11 Click OK.

12 In the Layer Control dialog box, click OK.

To view the population in a sector

■ On the Main toolbar, click the Info button, and click a contour region.

The Info Tool dialog box opens, showing the name of the sector and the population in its coverage area.

To close all tables

1 In the Windows data window, expand

DMG_C_Dis_Census_Tracts_NYNJ_P, and choose Close. 2 In the Windows data window, right-click NY_Training_Sites,...,,

Summary

In this lesson, you have learned to

■ mathematically manipulate grids ■ perform calculations on multiple grids

■ use grid queries to show all cells that have the same value ■ query one grid or multiple grids

■ use the Demographic Analysis tool to determine the number of

customers a sector serves

Lesson

10.

Building a Project

Area

In this lesson, you will ■ trim grids

■ splice grids

■ stamp roads onto a clutter file ■ resize grids

■ reproject grids ■ reclassify grids

This lesson provides background information and instructions for manipulating the data contained within project grid files.

Introduction

Planet EV provides you with a variety of tools that you can use to

manipulate grids. You can trim a grid to produce a grid that is a section of the original one. You can also splice a grid either by merging or stamping. Merging is often used when several grid files cover a study area that needs to be combined into a single grid, or when you want to create a grid that has the highest/lowest value of all the input grids. Stamping is usually

performed when you need to update areas of a grid, for example, updating an elevation grid with building heights.

You can resize a grid when you need to reduce its size and complexity. Resizing changes the resolution of a grid. To apply a different coordinate system to your grid, use the Reproject tool. Reprojecting uses interpolation to generate new values for each new grid cell. You can also reclassify a numeric grid as a classified grid to make it more suitable for analysis.