

dotplot {base}                               R Documentation

_C_l_e_v_e_l_a_n_d _D_o_t _P_l_o_t_s

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

     dotplot(x, labels = NULL, groups = NULL, gdata = NULL, cex = par("cex"),
             pch = 21, gpch = 21, bg = par("bg"), color = par("fg"),
             gcolor = par("fg"), lcolor = "gray", ...)

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

       x: either a vector or matrix of numeric values (`NA's
          are allowed).  If `x' is a matrix the overall plot
          consists of juxtaposed dotplots for each row.

  labels: a vector of labels for each point.  For vectors
          the default is to use `names(x)' and for matrices
          the row labels `dimnames(x)[[1]]'.

  groups: an optional factor indicating how the elements of
          `x' are grouped.  If `x' is a matrix, `groups'
          will default to the columns of `x'.

   gdata: data values for the groups.  This is typically a
          summary such as the median or mean of each group.

     cex: the character size to be used.  Setting `cex' to a
          value smaller than one can be a useful way of
          avoiding label overlap.

     pch: the plotting character or symbol to be used.

    gpch: the plotting character or symbol to be usea for
          group values.

      bg: the background color to be used.

   color: the color to be used for points an labels.

  gcolor: the color to be used for group labels and values.

  lcolor: the color to be used for the horizontal lines.

     ...: graphical parameters can also be specified as
          arguments.

_V_a_l_u_e_:

     This function is invoked for its side effect, which is
     to produce two variants of dotplots as described in
     Cleveland's graphics book.

     Dot plots are a reasonable substitute for bar plots.

_R_e_f_e_r_e_n_c_e_s_:

     Cleveland, W. S. (1985).  The Elements of Graphing
     Data, Monterey, CA: Wadsworth.

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

     data(VADeaths)
     dotplot(VADeaths, main = "Death Rates in Virginia - 1940")
     dotplot(t(VADeaths), main = "Death Rates in Virginia - 1940")

