SECRET, a reference-based approach, leverages the cell type-specific gene expression profiles obtained from single-cell RNA-Seq to effectively estimate cell type proportions in bulk data, particularly in instances where the bulk data contains cell types that are not present in the reference dataset.
# install devtools if necessary
install.packages('devtools')
# install the SECRET package
devtools::install_github('YyLu5/SECRET')
# load
library(SECRET)