

plotbyfactor(locfit)                         R Documentation

_x_-_y _s_c_a_t_t_e_r_p_l_o_t_, _c_o_l_o_r_e_d _b_y _l_e_v_e_l_s _o_f _a _f_a_c_t_o_r_.

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

     plotbyfactor(x, y, f, data, col, pch, add, lg, ...)

_A_r_g_u_m_e_n_t_s_:

       x: Variable for x axis.

       x: Variable for y axis.

       f: Factor (or variable for which as.factor() works).

    data: data frame for variables x, y, f. Default:
          sys.parent().

     col: Color numbers to use in plot. Will be replicated
          if shorter than the number of levels of the factor
          f. Default: 1:10.

     pch: Vector of plot characters. Replicated if neces-
          sary.  Default: "O".

     add: If TRUE, add to existing plot. Otherwise, create
          new plot.  Default: FALSE.

      lg: Coordinates to place a legend. Default: Missing
          (no legend).

     ...: Other graphical parameters, labels, titles e.t.c.

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

     data(iris)
     plotbyfactor(petal.wid,petal.len,species,data=iris)

