treeview 1.1.6.4+dfsg1-4 (riscv64 binary) in ubuntu focal

 TreeView creates a matrix-like display of expression data, known as
 Eisen clustering. The original implementation was a Windows program
 named TreeView by Michael Eisen. This TreeView package, sometimes also
 referred to as jTreeView, was rewritten in Java under a free license.
 .
 Java TreeView is an extensible viewer for microarray data in
 PCL or CDT format.