Visualise the p-values of expression and methylation for genes.

Function plot_volcano draws a plot with p-values and fold logarithm from methylation or expression when we use the t-test.

plot_volcano(data, line = NA, names = NA, ylog = TRUE, ngen = NA,
  title = NA, fold_line = NA, values = FALSE)

Arguments

data	Data frame containing result of chosen test from calculate_test function.
line	P-value on which we draw a horizontal line.
names	P-value below which we want to draw genes names.
ylog	Logical. If TRUE values on y-axis will be logarithmized.
ngen	Character symbol or vector of gene names to be labeled.
title	Character containing title for plot.
fold_line	Value on which we want to draw a vertical line on both sides of zero.
values	Logical. If TRUE p-values and log fold for chosen gene will be add to a plot. By default we use FALSE.

Value

An object of class ggplot containing volcano plot of p-values versus log2.fold for each gene.

See also

plot_volcanoes

Examples

# NOT RUN {
library(MLExpRessoData)
plot_volcano(BRCA_met, values=TRUE)
# }