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StrataBugs Learning Trail | Section 3: Taxonomic Database

Working with Groups and Sets

Groups

A group is an informal list of taxa which you may wish to be considered together. This may be so that you can plot them in a single panel either individually or as a group total, or use them to populate a picklist, to filter them from or highlight them in a biostratigraphic display.

Groups can belong to StrataBugs projects - see below.

Note: A Group differs from a Category in that a taxon can belong to many groups but only to one category.

 

Right: A group window in the Taxonomic Database module showing the 'Selected benthics' group, which has a red colour and 7 taxa which are sorted in this window by category. The group belongs to the global project.



Sets

A Set is a group of groups which you may wish to consider together. This may be so that you can plot a number of groups at once on a chart without having to select them individually. They can also be used in the calculations of abundance in certain specialised displays.

Add or edit a set with the Set dialog. You can open this via the Group | Sets menu (pressing Add... will make a new, blank Set, Edit... will edit whichever Set you have selected in the Sets sidebar, and Delete Selected will delete the selected Set). You can also open this dialog to edit a Set by double-clicking on it in the Sets sidebar.

Projects

Both groups and sets can belong to StrataBugs projects. This makes it easier to manage a large list of specialist groups which are only relevant to certain wells. Each group or set may only belong to one project, and those which do not belong to a specific project are "global", and can be used in any context.

In the Taxonomic Database Main Window, the Project Selector is used to restrict the lists of groups and sets. Items which belong to the current project are shown with the symbol; global items have the symbol.

Group sets can only contain groups from their own project or the global project. Global group sets can only contain global groups. Similarly, chart panel templates which belong to projects can only use groups or sets from that project (or from the global project). Global panel templates can only use global groups and sets.

Taxon Groups in Chart Panels

The biostratigraphy chart panel can use groups and sets to refine the display. In the example below, the whole panel is restricted to showing only taxa from the "Training Set". In the left-hand taxon panel, taxa in group "A" are highlighted in green. The right-hand taxon panel shows the relative proportions of taxa from groups A, B and C which comprise the Training Set.

You can select Groups/Sets | Show chart panels... to see a list of all panel templates which make a reference to the selected group or set. There is also an option to create a list of all the groups which are not referenced in any chart panel. This is useful when removing groups from the database that are no longer required.

Note: This option may take a long time to run over a large database. Allow several minutes.


Page last updated: 01-Aug-2014 16:12