The Data Document Tree View contains a number of nodes, each of which may contain either data or other nodes. This structure maintains the relationships of data as it is collected in a database like format, allowing the data to be reconstructed and reviewed after it has been saved. This can be a significant benefit over saving data in a spreadsheet format, as once data is saved to an unstructured file it can be very difficult to reconstruct for useful analysis.
The behavior of the Tree nodes follows the Windows conventions. To expand a node, click on the + sign, to contract a node, click on the – sign. To select an item, click on the name of the item to display its data in the View pane.
The uppermost (Root) node shows the name of the Data Document file. This node displays a text view where capture settings are automatically stored. Nodes under the Root Node are Summary nodes for Measurement Statistics and Graphs, and the detailed data containing Field and Object Measurement Data for each Field in the Data Document.
Measurements in each Field are divided into Classes. A new Class begins each time a Measure Icon is included, signifying that a new set of measurement data is to be collected. Field and Object measurement data is collected separately for each Measurement Class.
The combination of measurements from different classes is possible using Custom Measurements. The Custom Measurements Menu provides a button to select a measurement from a particular Class number. This makes it possible to arithmetically combine measurements for comparison, e.g., in percentage ratios, or for subtracting background values.
In addition to the Data Tree View, thumbnails of the images for each field may be viewed by selecting the Image Thumbnails icon located below the data tree. Clicking the Data Tree icon (folder icon) located to the right of the Image Thumbnails icon will display the data tree.