

OrchardSprays {base}                         R Documentation

_P_o_t_e_n_c_y _o_f _O_r_c_h_a_r_d _S_p_r_a_y_s

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

     An experiment was conducted to assess the potency of
     various constituents of orchard sprays in repelling
     honeybees, using a Latin square design.

_U_s_a_g_e_:

     data(OrchardSprays)

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

     A data frame with 64 observations on 4 variables.

      [,1]      rowpos        numeric     Row of the design
      [,2]      colpos        numeric     Column of the design
      [,3]      treatment     factor      Treatment level
      [,4]      decrease      numeric     Response

_D_e_t_a_i_l_s_:

     Individual cells of dry comb were filled with measured
     amounts of lime sulphur emulsion in sucrose solution.
     Seven different concentrations of lime sulphur ranging
     from a concentration of 1/100 to 1/1,562,500 in succes-
     sive factors of 1/5 were used as well as a solution
     containing no lime sulphur.

     The responses for the different solutions were obtained
     by releasing 100 bees into the chamber for two hours,
     and then measuring the decrease in volume of the solu-
     tions in the various cells.

     An 8 x 8 Latin square design was used and the treat-
     ments were coded as follows:

      A     highest level of lime sulphur
      B     next highest level of lime sulphur
      .
      .
      .
      G     lowest level of lime sulphur
      H     no lime sulphur

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

     Finney, D. J. (1947).  Probit Analysis.  Cambridge.

_R_e_f_e_r_e_n_c_e_s_:

     McNeil, D. R. (1977).  Interactive Data Analysis.
     Wiley.

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

     data(OrchardSprays)
     pairs(OrchardSprays, main = "OrchardSprays data")

