Easy, optimized, and accurate alternative splicing analysis in R
Reads and fragments aligned to splice junctions can be used to quantify alternative splicing events (ASE). However, overlapping ASEs can confound their quantification. SpliceWiz quantifies ASEs, calculating percent-spliced-in (PSI) using junction reads, and intron retention using IRFinder-based quantitation. Novel filters identify ASEs that are relatively less confounded by overlapping events, whereby PSIs can be calculated with higher confidence. SpliceWiz is ultra-fast, using multi-threaded processing of BAM files. It can be run using a graphical user or command line interfaces. GUI-based interactive visualization of differential ASEs, including novel group-based RNA-seq coverage visualization, simplifies short-read RNA-seq analysis in R.