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The &LUROWS system variable is provided to let an NCL procedure test the number of screen lines currently available for displaying a full-screen panel.
When in split screen operation, this is the number of lines available within the current screen window. Use &LUROWS for multi-screen output displays to determine the maximum number of lines that can be displayed in the available operational window.
You are responsible for subtracting any fixed overheads associated with displaying the panel, such as heading lines, and so on, and for operating within the available space. You should also allow for small windows, where there might not be sufficient lines to display data.
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