Cleaning up the attribute table
There are many reasons why we need to clean up attribute tables every now and then. These may be because we receive badly structured or named data from external sources, or because data processing, such as the layer joins that we performed in the previous exercise, require some post processing. This recipe shows us how to use attribute table and the Table Manager plugin to rename, delete, and reorder columns, as well as how to convert between different data types using Field Calculator.
Getting ready
If you performed the previous recipe, just save the joined layer to a new shapefile; otherwise, load census_wake2000_pop.shp. In any case, you will notice that the dataset contains a lot of duplicate information, and ...
Get QGIS: Becoming a GIS Power User now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
