Chapter 1 Data Explorer™

Setting traces in 1 Line or Vertical Bar modeSetting graphic compression

Basics

You can change the trace display from Line to Vertical Bars. Each vertical bar represents one data point.

Vertical bar mode is useful when setting peak detection parameters to determine the number of points across a peak.

NOTE: Graphic Compression mode is not saved as part of graphic settings. When you close a data file, it is automatically reset to the default Local Max setting.

By default, all data is compressed when it is displayed on your computer screen. The degree of compression is determined by the number of data points in the data file and the resolution setting of your computer monitor.

For example, assume that a data file contains 10,000 data points and needs compression to 1,000 data points to fit on your computer screen. Every 10 data points will be compressed into a single data point.

To set graphic compression settings:

1.Select Graphic Options from the Display menu.

2.In the Graph Setup tab of the Graph and Plot Options dialog box (see Figure 1-4 on page 1-25),select a Graphic Compression mode:

Local Max (default)— Uses the maximum data point within the range of data points being compressed (range of 10 in the example above).

Average— Uses the average of the data points within the range of data points being compressed (range of 10 in the example above).

Sum (Binning)— Uses the sum of the data points within the range of data points being compressed (range of 10 in the example above).

NOTE: Changing the graphic compression mode may alter the displayed intensities of peaks in a trace.

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