volcano_plot: Function to draw a Volcano Plot

In MultiDataSet: Implementation of MultiDataSet and ResultSet

Description

Function that takes two numeric vectors (P-Value and fold change) and draws a volcano plot using ggplot2

Usage

volcano_plot(
  pval,
  fc,
  names,
  size = 2,
  tFC = 2,
  tPV = -log10(0.001),
  show.labels = TRUE,
  show.effect = FALSE
)

Arguments

pval	numeric vector of P.Values
fc	numeric vector of fold change
names	character vector with the feature's names.
size	(default 2) Sice of the labels in case they are placed.
tFC	(default 2) fold change threshold. It can be set to NULL to not filter.
tPV	(default -log10(0.001)) P-Value threshold. It can be set to NULL to not filter.
show.labels	(default TRUE) If set to TRUE, features are labelled.
show.effect	(default FALSE) If set to TRUE, the X-axis will should 2^logFC instead to the default logFC.

Value

A ggplot object

Examples

data(rset)
w1 <- getAssociation(rset, rid = 1, fNames = NULL)
volcano_plot(w1$P.Value, w1$logFC, rownames(w1))

MultiDataSet documentation built on Jan. 31, 2021, 2:01 a.m.