hellung                 package:ISwR                 R Documentation

_G_r_o_w_t_h _o_f _T_e_t_r_a_h_y_m_e_n_a _c_e_l_l_s

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

     The 'hellung' data frame has 51 rows and 3 columns. diameter and
     concentration of _Tetrahymena_ cells, with and without glucose
     added to growth medium.

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

     This data frame contains the following columns:

     _g_l_u_c_o_s_e a numeric vector code 1: yes, 2: no. 

     _c_o_n_c a numeric vector. Cell condentration (counts/ml)

     _d_i_a_m_e_t_e_r a numeric vector. Cell diameter ($mu$m)

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

     D. Kronborg and L.T. Skovgaard (1990), _Regressionsanalyse_,
     Table~1.1, FADLs Forlag (in Danish).

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

     data(hellung)
     plot(diameter~conc,pch=glucose,log="xy",data=hellung)

