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NEWS.md

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News

All notable changes to Seurat will be documented in this file. The format is based on Keep a Changelog

[3.1.5] - 2020-04-14

Added

  • New scale parameter in DotPlot
  • New keep.sparse parameter in CreateGeneActivityMatrix` for a more memory efficient option
  • Added ability to store model learned by UMAP and project new data
  • New stip.suffix option in Read10X
  • Added group.by parameter to FeatureScatter

Changes

  • Replace wilcox.test with limma implementation for a faster FindMarkers default method
  • Better point separation for VlnPlots when using the split.by option
  • Efficiency improvements for anchor pairing
  • Deprecate redundant sort.cell parameter in FeaturePlot
  • Fixes to ensure correct class of Matrix passed to c++ functions
  • Fixes for underscores in ident labels for DotPlot
  • Ensure preservation of matrix dimnames in SampleUMI
  • Fix non-standard evaluation problems in subset and WhichCells
  • Default split violin option is now a multi group option
  • Preserve alpha in FeaturePlot when using blend
  • Update assay.used slot for DimReducs when Assay is renamed

[3.1.4] - 2020-02-20

Changes

  • Fixes to DoHeatmap to remain compatible with ggplot2 v3.3
  • Adoption of patchwork framework to replace CombinePlots

[3.1.3] - 2020-02-07

Added

  • New system agnostic Which function to address problems with FItSNE on Windows

Changes

  • Export CellsByIdentities and RowMergeSparseMatrices functions
  • nCount and nFeature metadata variables retained after subset and updated properly with UpdateSeuratObject
  • Fix uwot support for running directly on feature matrices
  • Fixes for keys with underscores
  • Fix issue with leiden option for FindClusters
  • Fix for data transfer when using sctransform
  • SDMTools moved to Suggests as package is orphaned

[3.1.2] - 2019-12-11

Added

  • New silent slot updater
  • New random seed options to RunCCA, RunTSNE, WhichCells, HTODemux, AddModuleScore, VlnPlot, and RidgePlot
  • Enhancements for dealing with Assay-derived objects

Changed

  • Only run CalcN (generates nFeatures and nCounts) when counts changes
  • Fix issue regarding colons in feature names
  • Change object class testing to use inherits or is.* for R 4.0 compatability

[3.1.1] - 2019-09-20

Added

  • New RegroupIdents function to reassign idents based on metadata column majority
  • UpdateSymbolList function to pull new gene names from HGNC
  • Added support for H5AD layers as additional assays in a Seurat object

Changed

  • Fix rownames issue when running UMAP on dist object
  • Add support for new H5AD obsm and varm stucture
  • Fix issue when trying to read non-existent feature-level metadata from an H5AD file
  • Fix in integration workflow when using SCTransform
  • Improved error checking for AddModuleScore
  • cbind fix in reference-based integration (MapQuery)
  • Fix for convenience plots error hanging
  • Ensure Seurat objects aren't stored in the command logs

[3.1.0] - 2019-08-20

Added

  • New PrepSCTIntegration function to facilitate integration after SCTransform
  • Reference-based integration with the reference parameter in FindIntegrationAnchors
  • Reciprocal PCA as a reduction option in FindIntegrationAnchors
  • New CollapseEmbeddingOutliers function
  • Enable FindTransferAnchors after SCTransform
  • Added back ColorDimSplit functionality
  • Include a code of conduct
  • Added uwot support as new default UMAP method
  • Added CheckDots to catch unused parameters and suggest updated names
  • Reductions and Assays assays functions to list stored DimReducs and Assays

Changed

  • Fix regex in LogSeuratCommand
  • Check for NAs in feature names in Read10X
  • Prevent dimnames for counts/data/scale.data matrices from being arrays
  • Updates ReadH5AD to distinguish FVF methods
  • Fixes to UpdateSeuratObject for v2 objects
  • Sink all output from stdout to stderr
  • Fix to scale.data cell ordering after subsetting
  • Enable Assay specification in BuildClusterTree
  • Fix FeaturePlot when using both blend and split.by
  • Fix to WhichCells when passing cells and invert
  • Fix to HoverLocator labels and title
  • Ensure features names don't contain pipes (|)
  • Deprecation of RunLSI and RunALRA
  • Fix legend bug when sorting in ExIPlot

[3.0.2] - 2019-06-07

Added

  • Flag to skip singleton grouping in FindClusters
  • New custom colors for blended FeaturePlots
  • New GetResidual function
  • New Seurat/Monocle converters

Changed

  • Fix issue where certain assays weren't being shown in the Seurat object
  • Fix issue where we weren't updating DimReduc object column names
  • Fix line spacers in DoHeatmap
  • Fix uninformative labels in FeaturePlot
  • Fix unset identities when converting from SCE to Seurat
  • Fix single colors being interpreted as palettes in SingleDimPlot
  • Ensure factor levels are always numerically increasing after FindClusters
  • Better cell highlighting colors for DimPlot
  • Fix to levels<-.Seurat
  • Add ability to use counts/scaled data in BuildClusterTree
  • Minor fix to split ScaleData

[3.0.1] - 2019-05-16

Added

  • Add global option (Seurat.memsafe) to skip gc() calls
  • Restore draw.lines to DoHeatmap, maintain size of color bar with different number of features (#1429)
  • Enable split.by parameter for ScaleData
  • Add slot parameter to FeaturePlot (#1483)
  • Add assay parameter to DotPlot (#1404)

Changed

  • Fix to color options for VlnPlot with split.by option (#1425)
  • Improvements to conversion functions (loom, SCE)
  • Fix for cluster tree reordering (#1434)
  • Fix PercentageFeatureSet for single feature case
  • Fix to fold change calculation and filtering for other slots in FindMarkers (#1454)
  • Keep title vectorized in AugmentPlot (#1515)
  • Export LogSeuratCommand function
  • Fix for FindConservedMarkers when one ident is missing from a group (#1517)

[3.0.0] - 2019-04-16

Added

  • New method for identifying anchors across single-cell datasets
  • Parallelization support via future
  • Additional method for demultiplexing with MULTIseqDemux
  • Support normalization via sctransform
  • New option for clustering with the Leiden algorithm
  • Support for reading 10X v3 files
  • New function to export Seurat objects for the UCSC cell browser
  • Support for data import from Alevin outputs
  • Imputation of dropped out values via ALRA

Changed

  • Significant code restructuring
  • Most occurances of "gene(s)" in function names/arguments renamed to "feature(s)"
  • Changes to the Seurat object class to facilitate multimodal data
  • New BlendPlot implementation

[2.3.4] - 2018-07-13

Added

  • GetIdent function added to pull identity info

Changed

  • DiffusionMap dependency replaced with destiny to avoid archival
  • Java dependency removed and functionality rewritten in Rcpp
  • Speed and efficiency improvements for Rcpp code
  • More robust duplicate handling in CellCycleScoring

[2.3.3] - 2018-07-02

Added

  • New HTOHeatmap function
  • Support for custom PNG arguments for vector-friendly plotting
  • Fix for 'NA'-labeled cells disappearing with custom color scale

Changed

  • Replaced FNN with RANN
  • Removed unused compiler flags
  • Moved several lightly-used packages from 'imports' to 'suggests'

[2.3.2] - 2018-06-11

Added

  • RenameCells added for easy renaming of all cells
  • Read10X_h5 added to read in 10X formatted h5 files
  • SetAssayData ensures cell order is the same between assay objects and the Seurat object
  • Compatability updates for ggplot2 v2.3.0

[2.3.1] - 2018-05-03

Added

  • Support for UMAP dimensional reduction technique
  • New conversion functions for SingleCellExperiment and anndata

Changed

  • FetchData preserves cell order
  • Require Matrix 1.2-14 or higher
  • AddModuleScore no longer densifies sparse-matrices
  • Various visualization fixes and improvements
  • Default value for latent.vars in FindMarkers/FindAllMarkers changed to NULL.

[2.3.0] - 2018-03-22

Added

  • Support for HTO demultiplexing
  • Utility functions: TransferIdent, CombineIdent, SplitObject, vector.friendly
  • C++ implementation for parts of BuildSNN
  • Preliminary parallelization support (regression and JackStraw)
  • Support for FItSNE

Changed

  • MetaDE replaced with metap for combining p-values (MetaDE was removed from CRAN)
  • NMF heatmaps replaced (NMF to be archived by CRAN)

[2.2.1] - 2018-02-14

Changed

  • MetaDE replaced with metap for combining p-values (MetaDE was removed from CRAN)
  • NMF heatmaps replaced (NMF to be archived by CRAN)

[2.2.0] - 2018-01-10

Added

  • Multiple alignment functionality with RunMultiCCA and AlignSubspace extended to multiple datasets
  • CalcAlignmentScore added to evaluate alignment quality
  • MetageneBicorPlot added to guide CC selection
  • Change cluster order in DoHeatmap with group.order parameter
  • Ability to change plotting order and add a title to DimPlot
  • do.clean and subset.raw options for SubsetData

Changed

  • JoyPlot has been replaced with RidgePlot
  • FindClusters is now more robust in making temp files
  • MetaDE support for combining p-values in DE testing

[2.1.0] - 2017-10-12

Added

  • Support for using MAST and DESeq2 packages for differential expression testing in FindMarkers
  • Support for multi-modal single-cell data via @assay slot

Changed

  • Default DE test changed to Wilcoxon rank sum test

[2.0.1] - 2017-08-18

Added

  • Now available on CRAN
  • Updated documentation complete with examples
  • Example datasets: pbmc_small and cc.genes
  • C++ implementation for parts of FindVariableGenes
  • Minor bug fixes

[2.0.0] - 2017-07-26

Added

  • New method for aligning scRNA-seq datasets
  • Significant code restructuring
  • New methods for scoring gene expression and cell-cycle phases
  • New visualization features (do.hover, do.identify)