Simple examples using JPlex to compute persistent homology.

To run them you will need Java 1.5+ installed, along with the JPlex library jar. You only need the standalone jar, there is no need to compile the library from source.

To execute JPlex run: java -cp plex.jar JPlex

To open the examples click File > Workspace Editor.

In the editor, choose File > Open and find the example.

To run an example click in Evaluate > Eval in Workspace in the editor window.

All examples plot the barcode graph of the computed persistent homology.

The first example shows points in a line, thus with no 1st order holes.

The second example shows points in a circle, which encompass a 1st order hole.

The third example shows points in a triangle shape and prints the 1 and 2-simplices found.