prussian                package:pscl                R Documentation

_P_r_u_s_s_i_a_n _A_r_m_y _H_o_r_s_e _K_i_c_k _D_a_t_a

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

     Deaths by year, by corp, from horse kicks.

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

     data(prussian)

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

     A data frame with 280 observations on the following 3 variables.

     '_y' a numeric vector, count of deaths

     '_y_e_a_r' a numeric vector, 18XX, year of observation

     '_c_o_r_p' a factor, corp of Prussian Army generating observation

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

     von Bortkiewicz, L. 1898. _Das Gesetz der Kleinen Zahlen._
     Leipzig: Teubner.

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

     data(prussian)
     corpP <- glm(y ~ corp, family=poisson,data=prussian)
     summary(corpP)

