Penicillin              package:mratios              R Documentation

_C_o_m_p_a_r_i_n_g _6 _s_t_r_a_i_n_s _w_i_t_h _r_e_s_p_e_c_t _t_o _p_r_o_d_u_c_t_i_o_n _o_f _a_n_t_i_b_i_o_t_i_c_s

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

     The production of antibiotics of 6 strains (mutants of the same
     micro organism) was compared. MO were put to holes in agar
     infected with Bacteria. The diameter of Baceria-free areas around
     the colonies of the MO was recorded. Each strain was repeated 8
     times.

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

     data(Penicillin)

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

     A data frame with 48 observations on the following 2 variables.

     _s_t_r_a_i_n a numeric veactor, the number identifying the strains

     _d_i_a_m_e_t_e_r a numeric vector, size of the diameter of Bacteria-free
          area around each colony

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

     _ Horn, M, Vollandt, R (1995)._ Multiple Tests und
     Auswahlverfahren in Biomtrie _(Lorenz, RJ, Vollmar, J, eds)._
     Gustav Fischerverlag, Stuttgart Jena New York.

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

     library(mratios)

     data(Penicillin)

     str(Penicillin)

     boxplot(diameter ~ strain, data=Penicillin)

