Update optimizer.py

Author: Evolutionary-Intelligence

pypop7/optimizers/core/optimizer.py

@@ -81,7 +81,11 @@ def __init__(self, problem, options):
         self.seed_optimization = options.get('seed_optimization',
                                              self.rng.integers(np.iinfo(np.int64).max))
         self.rng_optimization = np.random.default_rng(self.seed_optimization)
+        
+        # basic options for saving results and printing progress
+        # frequency of saving fitness when outputing results, to save memory space
         self.saving_fitness = options.get('saving_fitness', 0)
+        # only for printing in console
         self.verbose = options.get('verbose', 10)
 
         # auxiliary members