diff --git a/sdfvae/sdfvae_scripts.txt b/sdfvae/sdfvae_scripts.txt
index f9a831f23346555ce9362d80cce301e6c71d7b2f..792a5f52096b3571722a0aa175ffe532cd51cb72 100644
--- a/sdfvae/sdfvae_scripts.txt
+++ b/sdfvae/sdfvae_scripts.txt
@@ -1,5 +1,7 @@
 # Training, Testing and Evaluation
 
+# Please run data preprocessing code before running the following commands.
+
 # OPTIONS
 # dataset_path: The path of the processed training or testing dataset
 # data_nums: The size of training or testing dataset
@@ -32,4 +34,4 @@ nohup python evaluation.py --llh_path log_tester/machine-1-1 --log_path log_eval
 # Machine-1-5
 python trainer.py --dataset_path ../data_preprocess/data_processed/machine-1-5-train --data_nums  23480 --gpu_id 0 --log_path log_trainer/machine-1-5 --checkpoints_path model/machine-1-5 --n 38  
 nohup python tester.py --dataset_path ../data_preprocess/data_processed/machine-1-5-test --data_nums 23695 --gpu_id 0 --log_path log_tester/machine-1-5 --checkpoints_path model/machine-1-5 --n 38 --start_epoch 30 2>&1 &
-nohup python evaluation.py --llh_path log_tester/machine-1-5 --log_path log_evaluator/machine-1-5 --n 38 --start_epoch 30 2>&1 &
\ No newline at end of file
+nohup python evaluation.py --llh_path log_tester/machine-1-5 --log_path log_evaluator/machine-1-5 --n 38 --start_epoch 30 2>&1 &