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Thanks a lot Stephan.
KIndest regards,
Leo

Dear Tex experts,

I am trying to add a caption for a graphic generated using tikZ. I tried to use
\begin{figure}
% HERE the commands to generate my graphic
\caption{My caption}
\end{figure}
...but it is not working. the commands that I tried to use are as comments.
Where is my mistake? (I use ...

Dear Stephan, thanks a lot for the advice.
Regards,
Leo

Hello, I am Leo, a PhD student in social science. I live in Belgium and I usually go abroad very often.

I join this group because I want to use tikZ to draw a tree. Like the code below. However I have some problems:


I would like that the edges are enough long to write some words on them. As it ...