Graphics, Figures & Tables ⇒ Nodes and edges labes

[vejn]

I need labes of edges in tikz example on page. There is only one edge with label

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$x$
 
 
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. Could some help me to label others. I need this today.
Thanks
http://www.texample.net/tikz/examples/red-black-tree/

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\begin{tikzpicture}[->,>=stealth',level/.style={sibling distance = 5cm/#1,
  level distance = 1.5cm}] 
\node [arn_n] {33}
    child{ node [arn_r] {15} 
            child{ node [arn_n] {10} 
                child{ node [arn_r] {5} edge from parent node[above left]
                         {$x$}} %for a named pointer
                            child{ node [arn_x] {}}
            }
            child{ node [arn_n] {20}
                            child{ node [arn_r] {18}}
                            child{ node [arn_x] {}}
            }                            
    }
    child{ node [arn_r] {47}
            child{ node [arn_n] {38} 
                            child{ node [arn_r] {36}}
                            child{ node [arn_r] {39}}
            }
            child{ node [arn_n] {51}
                            child{ node [arn_r] {49}}
                            child{ node [arn_x] {}}
            }
        }
; 
\end{tikzpicture}
 
 
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Run LaTeX here

[Stefan Kottwitz]

It's already a long time ago, but as I don't like to leave a problem unsolved, here's a way: simply add

edge from parent node[above left] {your label}

directly after a child node, such as

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  ...
  child{ node [arn_r] {49} edge from parent node[above left] {$y$}}
  ...
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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tikz-tree.png (17.71 KiB) Viewed 6466 times

If a minimal working example would have been posted, I'm pretty sure somebody would have tested it to provide a solution. For example, the styles arn_r, arn_n and arn_x are unknown, I had to follow the link to example.net to get the code from there.

Stefan