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• Close: This tab acts like a button and closes the control panel. The control panel can be opened again by clicking any of the other four tabs.
• Shift Cores: This tab has controls for depth shifting, which are described in the Depth shift cores section.
• Splice Cores: This tab has controls for splicing, which are described in the Construct the splice section.
• Display Preferences: This tab has general data display controls (Fig. 2.2-2)
• Data Filters: This tab offers data filtering options, including decimate, smooth and cull (Fig. 2.2-3).

Data Filters tab

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Correlator offers three fundamental options to filter the data for the purpose of displaying them (Fig. 2.2-2a). The original data are still kept in memory and can be displayed again by deleting the filters.

To filter the data:

• Select the data type you want to filter (Fig. 2.2-2b).
• To decimate the selected data type, click the Edit button in the Decimate area (Fig. 2.2-2c).
  • Enter a number in the Show every <N> points to limit the display to every Nth data point.
  • Click Apply.
• To smooth the selected data type, click the Edit button in the Gaussian Smoothing area (Fig. 2.2-2d).
  • Select the type of rolling window: Points or Depth (cm)
    • Enter the number of points in 
  • Select the display option: Smoothed only or Original & Smoothed
  • Note: you can change the color of the smoothed trace in the Display Preferences > Set Colors
  • Click Apply.
• To cull the selected data type, click the Edit button in the Cull area (Fig. 2.2-

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• 2e).
  • The first type of cull is to Cull <x> cm from core tops.
    
    • Enter the interval in cm to be culled from each core in the data set.
  • The second type is to 
• Data filters are applied to the data from all cores for a specified data type. For a more specific filtering of known intervals with severe core disturbance, etc., you have the option to apply a file with those intervals specified in the Correlator Downloader application, at the time of data download.
• At this time, data culling can only be specified for top of cores (to remove data from “exotic” material washed down from higher up in the hole). A future version will include culling from core bottoms (“exotic” material “sucked in” when the piston core was removed) and culling from section ends (“edge effect”).
• Some odd behavior has been observed when deleting a cull filter under certain circumstances, and this has not yet been repaired (no user pressure). An easy workaround is to re-load the data.

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Figure 2.2-2. Three data filtering options on the Data Filter tab: Decimate, Gaussian Smoothing, and Cull. Shown is a 9-point Gaussian filter applied to the magnetic susceptibility data whereby both original and smoothed (white trace overlay) are plotted. The filters can be edited or deleted.

Image RemovedaImage Added   bImage AddedcImage Added   dImage Added   eImage Added

Display Preferences tab

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