

sd {base}                                    R Documentation

_S_t_a_n_d_a_r_d _D_e_v_i_a_t_i_o_n

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

     This function computes the standard deviation of the
     values in `x'.  If `na.rm' is `TRUE' then missing val-
     ues are removed before computation proceeds.

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

     sd(x, na.rm = FALSE)

_S_e_e _A_l_s_o_:

     `var' for its square, and `mad', the most robust alter-
     native.

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

     sd(1:2) ^ 2

