Function for generating volcano plot with log fold change as x-axis and -log10(p-value) as y-axis. Volcano plots are typically used for evaluation of differential expression statuses in a data set.

fig.volcano(DEA.res, Pval = 0.01, title)

Arguments

DEA.res

Results of a differential expression analysis using the included methods DE.voom or DE.edgeR. Must be a list including

p.val

p-values for differential expression

log2.FC

Fold change on a log2 scale

Pval

optional p-value cutoff for differential expression

title

optional Figure title

Value

volcano plot (ggplot2 object)

Examples

voom.benchmark <- DE.voom(data.benchmark, data.group)
fig.volcano(voom.benchmark, title = "Benchmark data (differential expression)")