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4.
Press
data to the Statistics application using the new filtering methods.
The export options are the same as the options for display filtering, with two
additions. The additional options are summarized in Table 4-2.
Table 4-2 Additional export filters
Name
Auto
WYSIWYG
Data history
By default, StreamSmart 410 collects data from a single sensor at approximately
5,000 samples per second while streaming. At this rate, the StreamSmart Aplet
can collect approximately 16.5 seconds of data before memory is full. You can use
the options in the Experiment menu to increase the time allotted to an experiment,
or you can change the way the StreamSmart Aplet allocates memory to data
streams via the History field in the second page of the Plot Setup menu. Press
%%@PAGE#]p{px]% to access this menu. Figure 4-29 illustrates the second page of
R
the Plot Setup menu with the History Type field highlighted. By default, this field
is set to Fixed, meaning that the StreamSmart Aplet will store all data collected
during streaming for a fixed amount of time. The amount of time will vary,
depending on the number of sensors in use. The current duration (in seconds) is
shown in the History field. In this case, streaming can continue for a total of
16.453 seconds before earlier data is dropped. You can change the History
Type from Fixed to Auto by pressing !CHOOS and selecting the Auto option (see
Figure 4-30). If the History Type is set to Auto, then data will be saved
indefinitely, but less and less of the earlier data is kept.
In either case, you can start data streaming and just let it run indefinitely. The
Fixed option simply drops data older than the History value, while Auto thins
the older data to make room for new data.
Figure 4-29 Plot Setup Menu, page 2
34
to return to the graphic view, and then press
Description
This is the default option. It matches the export filter to the display filter.
This option filters the data so that the scatter plot in the Statistics
application matches the graph in the StreamSmart Aplet exactly. The
results of this filtering depends on your zoom level.
Figure 4-30 Select History Type
Advanced Topics
EXPORT
to export
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