cakes                  package:alr3                  R Documentation

_C_a_k_e_s _d_a_t_a

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

     Oehlert (2000, Example 19.3) provides data from a small experiment
     on baking packaged cake mixes.

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

     data(cakes)

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

     A data frame with 14 observations on the following 4 variables.

     _b_l_o_c_k a numeric vector

     _X_1 Baking time, minutes

     _X_2 Baking temperature, degrees F

     _Y Palatability score

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

     Oehlert, G. W. (2000).  _A First Course in Design and Analysis of
     Experiments_. New York:  Freeman.

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

     Weisberg, S. (2005). _Applied Linear Regression_, 3rd edition. New
     York: Wiley, Section 6.1.1.

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

     data(cakes)
     lm(Y~X1+X2+I(X1^2)+I(X2^2)+X1:X2, data=cakes)

