

faithful {base}                              R Documentation

_O_l_d _F_a_i_t_h_f_u_l _G_e_y_s_e_r _D_a_t_a

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

     The `faithful' data frame has 272 rows and 2 columns;
     the waiting time between  eruptions  and the  duration
     of the eruption for the Old Faithful geyser in Yellow-
     stone National Park, Wyoming, USA.

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

     data(faithful)

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

     A data frame with 272 observations on 2 variables.

      [,1]      eruptions      numeric      Eruption time in mins
      [,2]      waiting        numeric      Waiting time to next eruption

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

     W. Hardle.

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

     Hardle, W. (1991).  Smoothing Techniques with Implemen-
     tation in S.  New York: Springer

     Azzalini, A. and Bowman, A.W. (1990) A look at some
     data on the Old Faithful geyser.  Applied Statistics
     39, 357-365.

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

     data(faithful)
     plot(faithful, main = "faithful data: Eruptions of Old Faithful",
          xlab = "Eruption time (min)",
          ylab = "Waiting time to next eruption (min)")
     lines(lowess(faithful$eruptions, faithful$waiting, f = 2/3, iter = 3),
           col = "red")

