Automatically set lmin, lmax for RingGraph.

pulquero · Jul 11, 2024 · a1f1c61 · a1f1c61
1 parent 72368ad
commit a1f1c61
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Showing 3 changed files with 4 additions and 1 deletion.
diff --git a/setup.py b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
  name="sgw_tools",
- version="2.5.4",
+ version="2.5.5",
  author="Mark Hale",
  license="MIT",
  description="Spectral graph wavelet tools",

diff --git a/sgw_tools/graphs.py b/sgw_tools/graphs.py
@@ -30,6 +30,8 @@ def compute_fourier_basis(self, recompute=False, spectrum_only=False):
  if not N&1: # bipartite
  self._e[-1] = 2
  self._e[0] = 0
+ self._lmin = self._e[1]
+ self._lmax = self._e[-1]
 
  if not spectrum_only:
  # eigenvectors are identical for normalized/adjacency and combinatorial Laplacians

diff --git a/tests/test_biggraph.py b/tests/test_biggraph.py
@@ -456,6 +456,7 @@ def _test_ring(self, n=20, lap_type='combinatorial'):
  expected_evals = scipy.linalg.eigh(graph.L.toarray(), eigvals_only=True)
  expected_evals[0] = 0
  np.testing.assert_allclose(graph.e, expected_evals)
+ self.assertEqual(graph.lmax, np.max(graph.e))
  # check eigenvectors
  L = graph.L
  U = graph.U