fix data dimension evaluation

alex-louvet · Oct 1, 2020 · d357c47 · d357c47
1 parent 767275f
commit d357c47
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Showing 2 changed files with 6 additions and 12 deletions.
diff --git a/generate_data_dimension.py b/generate_data_dimension.py
@@ -373,7 +373,7 @@ def newBettiNumbers(self, *args, **kwargs):
                     ball[e] = True
         betti = [0 for _ in range(self.dimension)]
         for i in range(len(centers)):
-            if ball[i] != 0:
+            if not ball[i]:
                 betti[compDim[i]] += 1
             else:
                 betti[0] += 1

diff --git a/utils.py b/utils.py
@@ -2,17 +2,11 @@
 
 
 def independent(x, S):
-    import sympy as sp
-    mat = []
-    for i in range(len(S[0])):
-        temp = []
-        for j in range(len(S)):
-            temp.append(S[j][i])
-        temp.append(x[i])
-        mat.append(temp)
-    mat = sp.Matrix(mat)
-    res = mat.columnspace()
-    return len(res) == len(S) + 1
+    import numpy as np
+    mat = S.copy()
+    mat.append(x)
+    rank = np.linalg.matrix_rank(mat)
+    return rank == len(mat[0])
 
 
 def findPointStructDimension(pointList):