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| Vector Files | A-Z | Organizing Data |
Future versions of IDRISI will eventually allow for multicolumn ASCII attribute tables, but in this version of IDRISI it is 2-columned ASCII-table:
1 12.5 2 11.3 3 9.7 4 8.1 5 7.6 6 6.1 7 4.9 8 3.4 9 2.0The first column lists region- or feature-identifiers (eg. measuring points, political districts, landcover types, ...), the second is an assignment of some attribute (temperature at measuring point, birth rate in districts, ...). These files are used in a lot of IDRISI modules, so you will meet them later on.
Now after being experts in the IDRISI-specific documentation-system, you won't have difficulties to interpret the fields. The out-shaded are restricted to the default values in this version. The number of fields (= columns) can only be 2 - identifiers and attributes.
IDRISI for WINDOWS has an integrated DATABASE WORKSHOP, a module for handling more complex attribute-tables in popular formats (MS ACCESS 1.x, 2.x / dBASE / FoxPro / ...). We will take a closer look on it later in the tutorial.
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| Index |
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| Vector Files | A-Z | Organizing Data |