fertility               package:poplab               R Documentation

_A_g_e-_s_p_e_c_i_f_i_c _f_e_m_a_l_e _f_e_r_t_i_l_i_t_y _r_a_t_e_s

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

     A tab-separated text-file storing age-specific fertility rates for
     a defined calendar period.

_U_s_a_g_e:

     fertility

_F_o_r_m_a_t:

     A matrix.

   (_a) _T_h_e _f_i_r_s_t _r_o_w: file header consisting of the keyword 'age' and
        the years for which fertility rates  are available. 
         For example, it could look like

          'age'  '1955'  '1956'  '1957'  ...  '2002'


   (_b) _T_h_e _f_i_r_s_t _c_o_l_u_m_n: age groups (e.g. from 0 to 100)

   (_c) _T_h_e _r_e_m_a_i_n_i_n_g _c_o_l_u_m_n_s: age-specific fertility rates

_S_o_u_r_c_e:

     Johansson L. and Finnas F. _Fertility of Swedish women born
     1927-1960._ Orebro: Statistics Sweden; 1983

