Fix deprecated series index

tardis-sn · Nov 1, 2023 · b98d02b · b98d02b
1 parent 7a73862
commit b98d02b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tardis/plasma/properties/nlte_rate_equation_solver.py b/tardis/plasma/properties/nlte_rate_equation_solver.py
@@ -595,7 +595,7 @@ def prepare_first_guess(
         """
         first_guess = pd.Series(0.0, index=rate_matrix_index)
         for atomic_number in atomic_numbers:
-            first_guess.loc[(atomic_number, 1)][0] = number_density.loc[
+            first_guess.loc[(atomic_number, 1)].iloc[0] = number_density.loc[
                 atomic_number
             ]
         # TODO: After the first iteration, the new guess can be the old solution.