HP StreamSmart 400 StreamSmart 400 User Guide - Page 21

Table 2-4 Menu keys, page 2 Menu Key @MRK$ @SWAP! @GOTO@ \SETUP %ADD$ Description Toggles Mark mode on and off, setting a mark at the current tracer position, or erasing the mark. Switches the tracing cursor and the mark on the current, selected stream. Permits you to jump to a specific time along the current stream. Sets the destination columns for data when %ADD$ is pressed. Adds the current data-tuple to the default columns in the Statistics Aplet. Returns to the previous page of menu keys. Low battery symbol The low battery symbol (¤) on the screen indicates that probes requiring higher power may not work. If the battery symbol appears in the upper left corner of the screen, as shown in Figure 2-10, and your experiment requires the use of higher power probes, be sure the StreamSmart has a fresh battery. For instructions on changing the battery, see the section titled, Replacing the battery in Chapter 5. Streaming Experiments Figure 2-10 The low battery symbol Select a set of data Once you have stopped streaming data, you will want to examine the data to find just the data set you wish to analyze. The !EXPRT menu key opens the Export menu. Here you will find all the tools you'll need to identify and select your final data set. Note that Zoom, Pan, and Trace are still available. In addition, you can use %${nn%$ and $%nn{%$ to crop data off the left and right sides of the data set, as shown in Figure 2-11. You can also thin the data by subtracting points; if you change your mind, you can add them back. 17