raise KeyError("some edges missing nodes, possibly due to input data clipping issue")
// turn the coordinates into a DataFrame indexed by u, v, k
cols = ["u", "v", "k", "u_y", "u_x", "v_y", "v_x"]df = pd.DataFrame(coords, columns=cols).set_index(["u", "v", "k"])
// calculate great circle distances, fill nulls with zeros, then round
dists = distance.great_circle_vec(df["u_y"], df["u_x"], df["v_y"], df["v_x"])
dists = dists.fillna(value=0).round(precision)
nx.set_edge_attributes(G, name="length", values=dists)
After Change
// calculate great circle distances, fill nulls with zeros, then round
dists = great_circle_vec(coords[:, 0], coords[:, 1], coords[:, 2], coords[:, 3])
dists[np.isnan(dists)] = 0
values = zip(uvk, dists.round(precision))
nx.set_edge_attributes(G, values=dict(values), name="length")
