When to set LiDAR_HEIGHT=0

[gitouni]

The default setting of LIDAR_HEIGHT in ScanContext is 2.0, indicating that there is an z-axis offset in recoreded PointClouds. However, most LiDAR datasets like KITTI record LiDAR scans in the robot-transformed-coordinate (as stated in comments). Therefore, should I set it to zero when running on KITTI dataset?

Many thanks for your reply.