The below code almost works perfectly, however the child of 9, 7, hangs straight down instead of as a left-child. How can I correct this?
\usepackage{tikz}
\usepackage{xytree}
\begin{tikzpicture}[level/.style={sibling distance=60mm/#1}]
\node [circle,draw] {4}
child {
node [circle,draw] {2}
child {node [circle,draw] {1}
}
child {
node [circle,draw]{3}
}
}
child {node [circle,draw] {6}
child {node [circle,draw] {5}
}
child {node [circle,draw] {9}
child {node [circle, draw] {7}}
}
};
\end{tikzpicture}}
Thanks, CB