Acidity                package:mixAK                R Documentation

_A_c_i_d_i_t_y _i_n_d_e_x _o_f _l_a_k_e_s _i_n _N_o_r_t_h-_C_e_n_t_r_a_l _W_i_s_c_o_n_s_i_n

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

     Acidity index measured in a sample of 155 lakes in North-Central
     Wisconsin.

     Crawford et al. (1992) and Crawford (1994) analyzed these data as
     a mixture of normal distributions on the log-scale. Richardson and
     Green (1997) used a normal mixture estimated using reversible jump
     MCMC.

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

     data(Acidity)

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

     A numeric vector with observed values.

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

     <URL: http://www.stats.bris.ac.uk/~peter/mixdata>

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

     Crawford, S. L. (1994). An application of the Laplace method to
     finite mixture distribution. _Journal of the American Statistical
     Association_, *89*, 259-267.

     Crawford, S. L., DeGroot, M. H., Kadane, J. B., and Small, M. J.
     (1994). Modeling lake chemistry distributions: Approximate
     Bayesian methods for estimating a finite mixture model.
     _Technometrics_, *34*, 441-453.

     Richardson, S. and Green, P. J. (1997). On Bayesian analysis of
     mixtures with unknown number of components (with Discussion).
     _Journal of the Royal Statistical Society, Series B_, *59*,
     731-792.

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

     data(Acidity)
     summary(Acidity)

