- r -
- radius : player_bumper_define
- range : player_blobfinder_blob
- range_res : playerc_laser_t , player_laser_config
- ranges : playerc_laser_t , player_ir_data , player_laser_data , player_sonar_data
- ranges_count : player_ir_data , player_laser_data , player_sonar_data
- rate : player_waveform_data
- red : player_color
- RefCount : Message
- replace : player_add_replace_rule_req
- resolution : player_laser_data , player_laser_config , playerc_map_t
- ret_queue : Driver
- retry_limit : _playerc_client_t
- retry_time : _playerc_client_t
- right : player_audiomixer_cmd , player_blobfinder_blob
- rmax : player_blobfinder_color_config
- rmin : player_blobfinder_color_config
- robot : player_devaddr
- robot_pose : playerc_laser_t
- row : player_map_data