fcgo_volcano_plot: Make A Volcano Plot
In kmorrisongr/fcan: Fc Array Analysis and Manipulation

Plots p-values versus fold change values. Points are colored by detection reagant and shaped by antigen being detected.

fcgo_volcano_plot(
  foch,
  p_vals,
  line_method,
  main,
  xlab,
  ylab,
  gopts,
  pt_colors,
  pt_shapes
)

`foch`	A vector of fold change values.
`p_vals`	A vector of p-values.
`line_method`	A string indicating the method you want to use to draw the arbitrary cutoff line. "bonferroni" (for p < 0.05), "fdr" (for q < 0.2), and "raw" (just -log10(0.05)) are supported.
`main`	The title of the plot.
`xlab`	The label for the x-axis.
`ylab`	The label for the y-axis.
`gopts`	A list of graphical options. Must have specified the subparameters: gopts$volc_xlim The x-limits for the volcano plot. gopts$volc_ylim The y-limits for the volcano plot. gopts$reag_legend_inset The inset for the legend relative to the plot. Reasonable place to start is c(-0.18, 0). gopts$reag_cats The categories for your detection reagants. gopts$reag_cols The colors for the detection reagant categories. gopts$ant_shapes The shapes for the antigens being detected.
`pt_colors`	Colors for each point in p_vals. These should be generated from gopts$reag_cols. See ?fcgo_get_prop for an example of how to generate this.
`pt_shapes`	Shapes for each point in p_vals. These should be generated from gopts$ant_shapes. See ?fcgo_get_prop for an example of how to generate this.