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Summarizing Data
The amount of data recorded for a process can quickly get out of hand.
However you can easily convert large data files into more manageable form
using the Summary function. Open the Range Selection dialog box by
clicking on Summary in the menu bar. Specify the required range using the
arrow buttons, and then set the data display interval in the edit box to any
integer value. The log charts shown below illustrate the difference between
a chart for raw data and one for summarized data.