          the chosen example.

  VEC     (output) LOGICAL array, dimension (9)
          Flag vector which displays the availability of the output
          data:
          VEC(j), j=1,2,3, refer to N, M, and P, respectively, and
          are always .TRUE.
          VEC(4) refers to A and is always .TRUE.
          VEC(5) is .TRUE. if BPAR(1) = .FALSE., i.e., the factors B
          and R from (I) are returned.
          VEC(6) is .TRUE. if BPAR(4) = .FALSE., i.e., the factors C
          and W from (II) a