FIX: Pass list to sparase_hstack, rather than generator

nipreps · Sep 24, 2023 · d17bd89 · d17bd89
1 parent a278c90
commit d17bd89
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/sdcflows/interfaces/bspline.py b/sdcflows/interfaces/bspline.py
@@ -198,7 +198,7 @@ def _run_interface(self, runtime):
 
         # Calculate collocation matrix from (possibly resized) image and knot grids
         colmat = sparse_hstack(
-            grid_bspline_weights(fmapnii, grid) for grid in bs_grids
+            [grid_bspline_weights(fmapnii, grid) for grid in bs_grids]
         ).tocsr()
 
         bs_grids_str = ["x".join(str(s) for s in grid.shape) for grid in bs_grids]
@@ -255,7 +255,7 @@ def _run_interface(self, runtime):
             else:
                 mask = np.ones_like(fmapnii.dataobj, dtype=bool)
             colmat = sparse_hstack(
-                grid_bspline_weights(fmapnii, grid) for grid in bs_grids
+                [grid_bspline_weights(fmapnii, grid) for grid in bs_grids]
             ).tocsr()
 
         regressors = colmat[mask.reshape(-1), :]