if (!("DESeq2" %in% installed.packages())) {
# Install this package if it isn't installed yet
BiocManager::install("DESeq2", update = FALSE)
if (!("apeglm" %in% installed.packages())) {
# Install this package if it isn't installed yet
BiocManager::install("apeglm", update = FALSE)
if (!("ashr" %in% installed.packages())) {
# Install this package if it isn't installed yet
BiocManager::install("ashr", update = FALSE)