source: orange/docs/widgets/rst/data/datatable.rst @ 11803:ae43143a5ae0

Revision 11803:ae43143a5ae0, 2.0 KB checked in by blaz <blaz.zupan@…>, 4 months ago (diff)

Icon size change in widget documentation, minor edits in rst.

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1.. _Data Table:
2
3Data Table
4==========
5
6.. image:: ../../../../Orange/OrangeWidgets/Data/icons/DataTable.svg
7   :alt: Data Table icon
8   :class: widget-category-data widget-icon
9
10
11Displays attribute-value data in a spreadsheet.
12
13Signals
14-------
15
16Inputs:
17    - Data
18        Attribute-valued data set.
19
20Outputs:
21    - Selected Data
22        Selected data instances.
23
24Description
25-----------
26
27Data Table widget receives one or more data sets on its input and presents
28them in a spreadsheet format. Data instances may be sorted by attribute
29values. Widget also supports manual selection of data instances.
30
31.. image:: images/DataTable-stamped.png
32   :alt: Data table with Iris data set
33
34.. rst-class:: stamp-list
35
361. The name of the data set (e.g., inherited from the name of the
37   input data file) with a table of data instances (in rows)
38   and their attribute values (columns). In the example shown the data set
39   is sorted by the attribute "sepal length".
40#. Info on current data set size and the number and types of attributes.
41#. Meta attributes are not included in this example data set,
42   the corresponding option is dimmed.
43   Use "Restore Order" button to reorder data instance after attribute-based
44   sorting.
45#. Values of continuous attributes can be visualized with bars.
46#. Data instances (rows) can be selected and sent to the widget's output
47   channel.
48#. Adds an entry with the entire data table to the current report.
49
50Example
51-------
52
53We used two :ref:`File` widgets, read the iris and glass data set (provided in
54Orange distribution), and send them to the Data Table widget.
55
56.. image:: images/DataTable-Schema.png
57   :alt: Example data table schema
58
59Selected data instances in the first Data Table are passed to the second
60Data Table. Notice that we can select which data set to view (iris or zoo);
61change from one data set to another alters the communicated
62selection of the data instances if "Commit on any change is selected".
63
64.. image:: images/DataTable-Example.png
65   :alt: Data Table widget example
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