5.1 Creating a table
Tables can be obtained in three ways: either by creating them in ILWIS and entering
the values manually from the keyboard, by using Copy/Paste from another source
table or by importing existing data in other file formats.
For more information see ILWIS Help, topic How to import ASCII point data.
You will first see how to create a table in ILWIS: a table linked to the Identifier
domain District, with information regarding the cadastral districts of the city of
Cochabamba, such as:
- Housecon: the average dwelling condition, or building quality, within the district.
This will be a class domain with the classes bad, moderate and good.
- Schools: the number of schools within the district. This is a value domain.
- Pchildren: the percentage of the population in the district that consists of schoolchildren
between 4 and 18 years old. This is also a value domain.
The full table is listed below:
Now the table window is opened. The table has 13 records with the identification
codes of the 13 districts (nr 1 up to nr 13).
The first column will be Housecon. This column will have a class domain with three
classes (Bad, Moderate, and Good).
Column Housecon is added to the table District.
Then create the second column for this table: Schools (number of schools in each
district).
The last column to add is called: Pchildren (the percentage of the population consisting
of schoolchildren).