diff --git a/src/C++/Driver/src/CKobuki.cpp b/src/C++/Driver/src/CKobuki.cpp
index 61eed6e..a667c5b 100755
--- a/src/C++/Driver/src/CKobuki.cpp
+++ b/src/C++/Driver/src/CKobuki.cpp
@@ -410,7 +410,8 @@ long CKobuki::loop(void *user_data, TKobukiData &Kobuki_data)
     //              << std::endl;
 
     static long counter = 0;
-
+    
+    //vector for data plotting
     vectorX.push_back(gx);
     vectorY.push_back(gy);
     vectorGyroTheta.push_back(gyroTheta);