Quick Start

Principal graphs can be built in this way:

import elpigraph
import numpy as np

#generate data : np.array (n_points x n_dim).
data = np.random.random((1000,10))

#build principal graph with chosen topology
pg_curve = elpigraph.computeElasticPrincipalCurve(data,NumNodes=50)
pg_circle = elpigraph.computeElasticPrincipalCircle(data,NumNodes=50)
pg_tree = elpigraph.computeElasticPrincipalTree(data,NumNodes=50)

#retrieve graph (node positions and edges)
pg_curve[0]['NodePositions'],pg_curve[0]['Edges']