_a _f_i_r_s_t _f_u_n_c_t_i_o_n _e_x_a_m_p_l_e _X_X_X

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

     This really is just an example, the function prints
     'utils::head()' and 'utils::str()' of the given 'data.frame'.

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

     a_first_function(df)
     
_A_r_g_u_m_e_n_t_s:

      df: Name of a data.frame to ... do whatever needs to be done.

_V_a_l_u_e:

     NULL. This is no good.

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

     Dominik Cullmann <adc-r@arcor.de>

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

     data(iris, package = "datasets")
     a_first_function(iris)
     
