2020-05-03 BBS法、データからR推定 BBS法 参考 https://ipsj.ixsq.nii.ac.jp/ej/%3Faction%3Drepository_action_common_download%26item_id%3D75530%26item_no%3D1%26attribute_id%3D1%26file_no%3D1 https://www.google.com/url?sa=t&source=web&rct=j&url=https://ipsj.ixsq.nii.ac.jp/ej/%3Faction%3Drepository_action_common_download%26item_id%3D75530%26item_no%3D1%26attribute_id%3D1%26file_no%3D1&ved=2ahUKEwisooqzwJfpAhVKG6YKHQmGAOcQFjAAegQIARAB&usg=AOvVaw2t_DGh3D1uYT2WbXLRFmA9