How to make dendrogram with treefigure data input

I already have the treefigure data through another programm. How do i put this in MatLab to make a dendrogram?

10.0000  11.0000  0.798
11.0000  12.0000  0.787
5.0000   6.0000   0.520
2.0000   6.0000   0.507
7.0000   9.0000   0.250
3.0000   7.0000   0.253
1.0000   3.0000   0.247
6.0000   12.0000  0.229
4.0000   7.0000   0.205
8.0000   9.0000   0.130
9.0000   12.0000  0.084

[MisterQuax]

Hello,

you can just use the dendrogram function of matlab. The result for just using the data you provided is quite messy. I suppose this is due to different syntax of your data and the implemented one in Matlab.

What is your data set saying? For example first, you connect point 9 and 12 at a height of 0.084. Later do you connect point 6 with those two points at a height of 0.229? Or do you just want 6 and 12 connected?