Data Table

Displays attribute-value data in a spreadsheet.

Signals

Inputs:

• Data

  Attribute-valued data set.

Outputs:

• Selected Data

  Selected data instances.

Description

The Data Table widget receives one or more data sets in its input and presents them as a spreadsheet. Data instances may be sorted by attribute values. The widget also supports manual selection of data instances.

1. The name of the data set (usually the input data file). Data instances are in rows and their attribute values in columns. In this example, the data set is sorted by the attribute “sepal length”.
2. Info on current data set size and number and types of attributes
3. Values of continuous attributes can be visualized with bars; colors can be attributed to different classes.
4. Data instances (rows) can be selected and sent to the widget’s output channel.
5. Use the Restore Original Order button to reorder data instances after attribute-based sorting.
6. Produce a report.
7. While auto-send is on, all changes will be automatically communicated to other widgets. Otherwise, press Send Selected Rows.

Example

We used two File widgets to read the Iris and Glass data set (provided in Orange distribution), and send them to the Data Table widget.

Selected data instances in the first Data Table are passed to the second Data Table. Notice that we can select which data set to view (iris or glass). Changing from one data set to another alters the communicated selection of data instances if Commit on any change is selected.