Volcano plot
Volcano plots visualize the relationship between the difference between groups (expressed as log fold change) and the p-values of the test comparing the peak intensities. This provides a visual overview of statistically significant results and their effect sizes. DiffBind provides the function dba.plotVolcano()
to create these plots.
The ar_diff
object contains the results of the differential binding analysis.
Cet exercice fait partie du cours
ChIP-seq with Bioconductor in R
Instructions
- Create a volcano plot.
- Examine the plot. Where are the significant results located?
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Create a volcano plot
___(ar_diff)