PCA$HELP.HLB  —  FIRST
    Analyzer Command

    Positions the current traverse subtree to display its first leaf.

    Format

      FIRST  [parameter]

1  –  Parameters

 SUBTREE

    Applies FIRST to subtrees instead of to the list within the
    subtree. The FIRST SUBTREE command places the pointer at the
    first leaf within the first subtree.

2  –  Description

    The FIRST command is one of a series of directional commands
    that allows you to traverse a program's structure. The FIRST
    command displays the current traverse subtree and positions
    an arrow to point to the bucket with the most data points. The
    corresponding source lines for that portion of the program are
    displayed alongside the plot. Other traverse commands are NEXT,
    BACK, and CURRENT.
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