Package: dreamlet Type: Package Title: Scalable differential expression analysis of single cell transcriptomics datasets with complex study designs Version: 1.11.0 Date: 2026-04-13 Authors@R: person("Gabriel", "Hoffman", role=c("aut", "cre"), email="gabriel.hoffman@mssm.edu", comment=c(ORCID="0000-0002-0957-0224")) Description: Recent advances in single cell/nucleus transcriptomic technology has enabled collection of cohort-scale datasets to study cell type specific gene expression differences associated disease state, stimulus, and genetic regulation. The scale of these data, complex study designs, and low read count per cell mean that characterizing cell type specific molecular mechanisms requires a user-frieldly, purpose-build analytical framework. We have developed the dreamlet package that applies a pseudobulk approach and fits a regression model for each gene and cell cluster to test differential expression across individuals associated with a trait of interest. Use of precision-weighted linear mixed models enables accounting for repeated measures study designs, high dimensional batch effects, and varying sequencing depth or observed cells per biosample. VignetteBuilder: knitr License: Artistic-2.0 Encoding: UTF-8 URL: https://DiseaseNeurogenomics.github.io/dreamlet BugReports: https://github.com/DiseaseNeurogenomics/dreamlet/issues Suggests: BiocStyle, knitr, pander, rmarkdown, muscat, ExperimentHub, RUnit, muscData, scater, scuttle biocViews: RNASeq, GeneExpression, DifferentialExpression, BatchEffect, QualityControl, Regression, GeneSetEnrichment, GeneRegulation, Epigenetics, FunctionalGenomics, Transcriptomics, Normalization, SingleCell, Preprocessing, Sequencing, ImmunoOncology, Software Depends: R (>= 4.3.0), variancePartition (>= 1.36.1), SingleCellExperiment, ggplot2 Imports: edgeR, SummarizedExperiment, DelayedMatrixStats, sparseMatrixStats, MatrixGenerics, Matrix, methods, purrr, GSEABase, data.table, zenith (>= 1.1.2), mashr (>= 0.2.52), ashr, dplyr, reformulas, BiocParallel, ggbeeswarm, S4Vectors, IRanges, irlba, limma, metafor, remaCor, broom, tidyr, rlang, BiocGenerics, S4Arrays, SparseArray, DelayedArray, gtools, reshape2, ggrepel, scattermore, Rcpp, MASS, Rdpack, utils, stats RoxygenNote: 7.3.3 RdMacros: Rdpack SystemRequirements: C++11 LinkingTo: Rcpp, beachmat Config/pak/sysreqs: cmake make libicu-dev libpng-dev libxml2-dev libssl-dev zlib1g-dev Repository: https://bioc.r-universe.dev Date/Publication: 2026-04-28 13:01:27 UTC RemoteUrl: https://github.com/bioc/dreamlet RemoteRef: HEAD RemoteSha: 31c2809b3ef6deb507ae03a51dc1004292a7f59e NeedsCompilation: yes Packaged: 2026-06-23 20:30:42 UTC; root Author: Gabriel Hoffman [aut, cre] (ORCID: ) Maintainer: Gabriel Hoffman