volcanoPlot: Generate a volcano plot using statistical testing output
In kordastilab/ImmunoCluster: Fast and accesible Immune profiling CyTOF data

Generate a volcano plot using statistical testing output

1	volcanoPlot(pval_df, p_val = "padj", threshold = 0.1)

`pval_df`	a dataframe that contains a column name "logfc" and a statistical testing output p values.
`p_val`	a string identifying the column name from pval_df to plot as p values
`threshold`	a numeric representing the p_value threshold on which to colour points on the volcano plot