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WHead [$]This command only writes the list of PLT commands needed to create the current figure. Since this command will NOT write any data, it will run faster than the WEnviron command. Typically one would first use WEnviron to write both the PLT commands and the data to files. If any changes are made to the appearance of the plot (such as adding labels, etc.) then the WHead command can be used to update the PLT command file without over-writing the QDP file containing the data.
PLT> WHead ! Write commands to the terminal screen PLT> WHead TEST ! Write commands to TEST.PCO PLT> WHead TEST 3 ! Same as previous (the 3 is ignored)
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