update .gitignore file and change the correlation config

.gitignore

@@ -1,2 +1,3 @@
 __pycache__/
 datasets/
+swap_results.csv

correlation.py

@@ -56,7 +56,7 @@ if __name__ == "__main__":
     results = []
 
     # nasbench_len = 15625
-    nasbench_len = 15
+    nasbench_len = 15625
     
     # for index, i in arch_info.iterrows():
     for i in range(nasbench_len):
@@ -99,7 +99,7 @@ if __name__ == "__main__":
         results.append([np.mean(swap_score), acc, i])
 
     results = pd.DataFrame(results, columns=['swap_score', 'valid_acc', 'index'])
-    results.to_csv('swap_results.csv', float_format='%.4f', index=False)
+    results.to_csv('output/swap_results.csv', float_format='%.4f', index=False)
 
     print()    
     print(f'Spearman\'s Correlation Coefficient: {stats.spearmanr(results.swap_score, results.valid_acc)[0]}')