ssn                  package:FLCore                  R Documentation

_M_e_t_h_o_d _s_s_n

_D_e_s_c_r_i_p_t_i_o_n:

     Returns the Spawning Stock Numbers of 'FLBiol-class' objects.

_G_e_n_e_r_i_c _f_u_n_c_t_i_o_n:

     ssn(object)

_M_e_t_h_o_d_s:


      _s_i_g_n_a_t_u_r_e(_o_b_j_e_c_t=_F_L_B_i_o_l) : For a given 'FLBiol' object, the
          spawning stock numbers are calculated  as follows:

                 SSN = sum(n * fec * exp(-spwn * m))

          In Leslie matrix type models it is the spawning stock *
          numbers birthed (realised  fecundity) that is the key
          recruitment driver, not SSB.


_A_u_t_h_o_r(_s):

     The FLR Team

_S_e_e _A_l_s_o:

     FLComp FLStock

_E_x_a_m_p_l_e_s:

     ## Not run: 
      data(ple4.biol)
      ssn(ple4.biol)
     ## End(Not run)

