When the CULL DATA... option is used, the program applies the selected data culling (removal) criteria on the selected data files. Data which are not culled are then passed to the SMOOTH... and DECIMATE... routines, if selected, and then are plotted in the left-hand graphics window.
Those data which do not pass the cull criteria can be saved in and retrieved from a file called a CULL TABLE which lists the culled values and the reason for their removal from the initial dataset (using a hash table format).
A reason for saving a CULL TABLE is that it can be used to identify core voids and other coring problems within another dataset from the same drillsite. For example, one can initially cull all GRAPE density values less than 1.03 to identify and remove data from core void intervals. The resulting CULL TABLE can then be used to identify and remove core voids from other volume-dependent MST measurements such as magnetic susceptibility and gamma ray activity.
CULL TABLE files should be saved using with the *.cull suffix.(e.g. Sitexxxx.cull).
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updated: 30 April 1996
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