| add.boxplot.box | R Documentation | 
Add a box to a boxplot that was initialized by plot.boxplot.
add.boxplot.box(
  x,
  y,
  side = 1,
  col = "#33333330",
  border.col = "black",
  line.col = "black",
  point.col = "black",
  width = 0.7,
  lty = 1,
  lwd = 1,
  xlwd = NULL,
  outliers = T,
  pch = 1,
  cex = 1
)
| x | The x locations for the boxs | 
| y | The y values that will be plotted. | 
Thomas Bryce Kelly
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