uspop package:datasets R Documentation _P_o_p_u_l_a_t_i_o_n_s _R_e_c_o_r_d_e_d _b_y _t_h_e _U_S _C_e_n_s_u_s _D_e_s_c_r_i_p_t_i_o_n: This data set gives the population of the United States (in millions) as recorded by the decennial census for the period 1790-1970. _U_s_a_g_e: uspop _F_o_r_m_a_t: A time series of 19 values. _S_o_u_r_c_e: McNeil, D. R. (1977) _Interactive Data Analysis_. New York: Wiley. _E_x_a_m_p_l_e_s: require(graphics) plot(uspop, log = "y", main = "uspop data", xlab = "Year", ylab = "U.S. Population (millions)")