plot_diagnositics: Diagnostic plots for a DESeq differential expression analysis

Description Usage Arguments

View source: R/rnaseq_helpers.R

Description

Given a valid DESeq results object this function will make a p-value histogram and a volcano plot. The p-value histogram is constructed with the p-values prior to multiple-testing correction and is used to diagnose if something went wrong with your testing procedure. See http://varianceexplained.org/statistics/interpreting-pvalue-histogram/ for more details on interpreting the p-value histogram. The volcano plot gives you an idea of how many genes are differentially expressed in both directions compared to their expression levels.

Usage

1
plot_diagnositics(res, cutoff = 0.05, show_title = TRUE)

Arguments

res

A DESeq results object

cutoff

The p value to use as a cutoff for significantly differentially expressed genes. Defaults to 0.05

show_title

If specified the description of the results object will be printed as the plot's title


mworkentine/mattsUtils documentation built on May 23, 2019, 11:58 a.m.