diff --git a/docs/examples/emulator/robustgasp/plot_ppgasp.py b/docs/examples/emulator/robustgasp/plot_ppgasp.py
index 517dd880a6e4ef68aa6d92431c35aafe6f16eb04..39a88a6b55aeb207270fc8f8340d44fd68e91beb 100644
--- a/docs/examples/emulator/robustgasp/plot_ppgasp.py
+++ b/docs/examples/emulator/robustgasp/plot_ppgasp.py
@@ -20,8 +20,7 @@ PPGaSP: GP emulation for multi-output functions
 # and :math:`\mathbf{y}=(y_1,\ldots,y_5)^T`.
 #
 # The training and testing data are provided in the folder '.../tests/data/'.
-# We first load the training and testing data. You may need to modify ``dir_data```
-# according to where you save them.
+# We first load the training and testing data. 
 
 import numpy as np
 import os
@@ -38,6 +37,10 @@ humanityXt = np.genfromtxt(os.path.join(dir_data, 'humanityXt.csv'), delimiter='
 humanityYt = np.genfromtxt(os.path.join(dir_data, 'humanityYt.csv'), delimiter=',')
 print(f"Number of testing data points: ", humanityXt.shape[0])
 
+# %% md
+# .. note:: You may need to modify ``dir_data`` according to where you save them
+#    on your local machine.
+
 # %% md
 # ``humanityX`` and ``humanitY`` are the training data, corresponding to ``design``
 # and ``response`` respectively. ``humanityXt`` are testing input data, at which