state package:datasets R Documentation _U_S _S_t_a_t_e _F_a_c_t_s _a_n_d _F_i_g_u_r_e_s _D_e_s_c_r_i_p_t_i_o_n: Data sets related to the 50 states of the United States of America. _U_s_a_g_e: state.abb state.area state.center state.division state.name state.region state.x77 _D_e_t_a_i_l_s: R currently contains the following "state" data sets. Note that all data are arranged according to alphabetical order of the state names. '_s_t_a_t_e._a_b_b': character vector of 2-letter abbreviations for the state names. '_s_t_a_t_e._a_r_e_a': numeric vector of state areas (in square miles). '_s_t_a_t_e._c_e_n_t_e_r': list with components named 'x' and 'y' giving the approximate geographic center of each state in negative longitude and latitude. Alaska and Hawaii are placed just off the West Coast. '_s_t_a_t_e._d_i_v_i_s_i_o_n': factor giving state divisions (New England, Middle Atlantic, South Atlantic, East South Central, West South Central, East North Central, West North Central, Mountain, and Pacific). '_s_t_a_t_e._n_a_m_e': character vector giving the full state names. '_s_t_a_t_e._r_e_g_i_o_n': factor giving the region (Northeast, South, North Central, West) that each state belongs to. '_s_t_a_t_e._x_7_7': matrix with 50 rows and 8 columns giving the following statistics in the respective columns. '_P_o_p_u_l_a_t_i_o_n': population estimate as of July 1, 1975 '_I_n_c_o_m_e': per capita income (1974) '_I_l_l_i_t_e_r_a_c_y': illiteracy (1970, percent of population) '_L_i_f_e _E_x_p': life expectancy in years (1969-71) '_M_u_r_d_e_r': murder and non-negligent manslaughter rate per 100,000 population (1976) '_H_S _G_r_a_d': percent high-school graduates (1970) '_F_r_o_s_t': mean number of days with minimum temperature below freezing (1931-1960) in capital or large city '_A_r_e_a': land area in square miles _S_o_u_r_c_e: U.S. Department of Commerce, Bureau of the Census (1977) _Statistical Abstract of the United States_. U.S. Department of Commerce, Bureau of the Census (1977) _County and City Data Book_. _R_e_f_e_r_e_n_c_e_s: Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) _The New S Language_. Wadsworth & Brooks/Cole.