Data Sequence
A data sequence is a collection of ordered data
tables. All data tables in the data sequence have the
same structure - the same number of columns and the same column names. A data
sequence is displayed in a dock panel the same way as
a data table is displayed. At any given time, the data sequence is always
displayed with the data and name of one data table in the data sequence - this
particular data
table is referred to as the current data table of the data sequence. A data
sequence is symbolized by the 
icon shown on the tab strip of the data-sequence window and on the
corresponding node in the Navigator.
There are two ways to add a data sequence to the active project.
The first way is to import multiple text files having the same structure into the
active project as a data sequence. This can be done by checking the Import file(s) as a data sequence
check box in the File Source group box of the the Text Source dialog
box while importing the files. The second way is to add an empty
data sequence to the active project by selecting the Add
To Project...: Data Sequence menu command on the Project
menu.
The current data table in a data sequence can be edited the same way as
a normal data table. Changes made to the structure (i.e. number of columns and
column names) of the current data table will be automatically committed to all
data tables in the data sequence. Addition and deletion of data tables and
changing the sequential orders of the data tables in the data sequence can be performed with the
Data Sequence
Editor, which can be opened by selecting the Sequence Editor menu
command on the Data menu (which is also the
context menu of the data-sequence window). To change the sequential order of a data table,
simple drag and drop it to the desired position in the Data
Sequence
Editor.
A data sequence can be used to generate graph animation, please refer
to the topic Animation through Sequence
for details.
See Also
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