GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
1<Verb>DisplayDendrogram(L):: List --> Void</Verb><P/> 2 3<P/> 4 5Displays the dendrogram 6 <B>L:=DendrogramMat(A,t,s)</B>. 7 8 9 10