nag_stat_inv_cdf_students_t_vector (g01tbc) Example Program Results tail p df t ivalid ----------------------------------------------------------- Nag_TwoTailSignif 0.010 20.0 2.8453 0 Nag_LowerTail 0.010 7.5 -2.9431 0 Nag_TwoTailConfid 0.990 45.0 2.6896 0