Possible Duplicate:
How to draw syntactical trees with parallel leafs for a natural language?
Consider page 4 in following paper: Pantcheva 2007

Which package can be used to draw a similar structure? (As elegant as possible)
Possible Duplicate:
How to draw syntactical trees with parallel leafs for a natural language?
Consider page 4 in following paper: Pantcheva 2007

Which package can be used to draw a similar structure? (As elegant as possible)
There are several packages available: qtree, TikZ has built-in features to build trees, and tikz-qtree which combines features from the first two. Here's a simple example taken from the documenation of the tikz-qtree package:
\documentclass{article}
\usepackage{tikz-qtree}
\begin{document}
\begin{tikzpicture}
\tikzset{edge from parent/.append style={very thick}}
\Tree [.S [.NP [.Det the ] [.N cat ] ]
[.VP [.V sat ]
[.PP [.P on ]
[.NP [.Det the ] [.N mat ] ] ] ] ]
\end{tikzpicture}
\end{document}

Besides tikz you can also use pstricks, more specifically pst-tree. The syntax is \pstree{root}{successors}, where root and successors are one of the available node types, e.g. \TR, or another (nested) \pstree. More details are given in chapter 8 of the package documentation.
pstricks figures can be compiled by using latex=>PS=>PDF or any of the alternatives given on the PSTricks website.
Code for Gonzalo Medina's example:
\documentclass{article}
\usepackage{pst-tree}
\begin{document}
%formatting
\psset{levelsep=1.5cm,nodesepA=6pt,nodesepB=6pt,edge=\ncline}
%main tree with root
\pstree{\TR{S}}{
%left subtree
\pstree{\TR{NP}}{
\pstree{\TR{Det}}{
\TR{the}
}
\pstree{\TR{N}}{
\TR{cat}
}
}
%right subtree
\pstree{\TR{VP}}{
\pstree{\TR{V}}{
\TR{sat}
}
\pstree{\TR{PP}}{
\pstree{\TR{P}}{
\TR{on}
}
\pstree{\TR{NP}}{
\pstree{\TR{Det}}{
\TR{the}
}
\pstree{\TR{N}}{
\TR{mat}
}
}
}
}
}
\end{document}
pstricks solution would be pst-qtree. It's by the same author as tikz-qtree.
– Alan Munn
May 22 '12 at 16:28
qtree syntax obviously is compelling.
– dgs
May 22 '12 at 16:45
\mathitor\mathrm(not sure of common practice, but these are abbreviations, not strings of variables). that being said, i also think this covers the same territory as the question cited by Alan Munn. – barbara beeton May 22 '12 at 14:58$_...$and should be as you suggest (upright would be more appropriate.) – Alan Munn May 22 '12 at 15:09pstricksanswer in the other question, I thought I'd add it here. – dgs May 22 '12 at 16:09