Two new plugins have been published for the management of duplicate values in a field of the attribute table of a vector layer.
The first plugin is an improvement of the already existing duplicate selection tool, where all the elements with duplicate values were selected in a field of the table. With the new functionality the first one won’t be selected now. With this the user has both options available.
Keep in mind that in 2.4 version both tools are in two different menus (Selection and Table) and in two different buttons at toolbar, but from 2.4.1 they will be unified in the Selection menu, and in a drop-down button of the toolbar.
The second plugin allows us to count different values in a field of the attribute table. This new tool is added as a geoprocess in the Toolbox, and selecting the table and the field, we would obtain a new table (available in Project Manager-> Table) with the different values of the selected field, and the number of times that each one is repeated.
To install both plugins we must access to the Add-ons Manager (Tools menu) and search “duplic” term, where they will appear. We will have to mark them and after being installed we must restart gvSIG.
At this video you can watch how these tools work: