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NEWS.md

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News

All notable changes will be documented in this file.

[0.4.1] - 2023-10-18

Fixed

  • Fixed column name setting in fit_nb_offset

Changed

  • Verbose messages when invoking v2: messages are only invoked if verbosity > 1.

[0.4.0] - 2023-09-18

Added

  • Add fit_nb_offset to support vst.flavor='v2' by default

Fixed

  • Updated cpp utilities to adhere to C++17 standards (std::random_shuffle -> std::shuffle)
  • Handling of extra variables in latent_var when vst.flavor="v2"

Changed

  • Changed get_nz_median2 to support genes argument; thanks @boomanaiden154 and @ScreachingFire. #155
  • Replaced get_nz_median with faster alternative get_nz_median2 across all calls
  • Removed get_nz_median
  • Updated make_cell_attr to be flexible for named vectors; thanks @moi-taga #171

[0.3.5] - 2022-09-21

Fixed

  • Specify required Matrix version to >= 1.5.0

[0.3.4] - 2022-08-19

Added

  • Add make.sparse to handle dgCMatrix coercsions

Fixed

  • Convert bitwise operators to boolean operators in utils.cpp

[0.3.3] - 2022-01-13

Added

  • vst.flavor argument to vst() to allow for invoking running updated regularization (sctransform v2, proposed in Satija and Choudhary, 2021. See paper for details.
  • scale_factor to correct() to allow for a custom library size when correcting counts

[0.3.2] - 2021-07-28

Added

  • Add future.seed = TRUE to all future_lapply() calls

Changed

  • Wrap MASS::theta.ml() in suppressWarnings()

Fixed

  • Fix logical comparison of vectors of length one in diff_mean_test()

[0.3.2] - 2020-02-11

Added

  • compare argument to the nonparametric differential expression test diff_mean_test() to allow for multiple comparisons and various ways to specify which groups to compare
  • Input checking at various places in vst() and diff_mean_test()

Changed

  • Major speed improvements for diff_mean_test()
  • Changed the labels argument to group_labels in diff_mean_test()

Fixed

  • Fix bug where factors in cell attributes gave error when checking for NA, NaN, inf

[0.3.2] - 2020-12-16

Added

  • Ability to control the values of latent variables when calculating corrected counts
  • Offset model as method, including the ability to use a single estimated theta for all genes
  • Nonparametric differential expression test for sparse non-negative data

Changed

  • Improve poor coefficient initialization in quasi poisson regression
  • When plotting model, do not show density by default; change bandwidth to bw.nrd0
  • Updates to C++ code to use sparse matrices as S4 objects
  • Add check for NA, NaN, Inf values in cell attributes

Fixed

  • Remove biocViews from DESCRIPTION - not needed and was causing problems with deploying shiny apps
  • Fix bug where a coefficient was given the wrong name when using glmGamPoi (only affected runs with a batch variable set)

[0.3.1] - 2020-10-08

Added

  • Add a qpoisson method for parameter estimation that uses fast Rcpp quasi poisson regression where possible (based on Rfast package); this adds RcppArmadillo dependency

Changed

  • Remove poisson_fast method (replaced by qpoisson)
  • Use matrixStats package and remove RcppEigen dependency
  • Use quasi poisson regression where possible
  • Define cell detection event as counts >= 0.01 (instead of > 0) - this only matters to people playing around with fractional counts (see issue #65)
  • Internal code restructuring and improvements

Fixed

  • Fix inefficiency of using match.call() in vst() when called via do.call

[0.3] - 2020-09-19

Added

  • Add support for glmGamPoi as method to estimate the model parameters; thanks @yuhanH for his pull request
  • Add option to use theta.mm ortheta.ml to estimate theta when method = 'poisson' or method = 'nb_fast'
  • Add a poisson_fast method for parameter estimation that uses the speedglm package and theta.mm by default
  • Add ability to plot overdispersion factor in plot_model_pars
  • Add and return time stamps at various steps in the vst function
  • Add functions to calculate grouped arithmetic and geometric mean per row for sparse matrices (dgCMatrix) - might come in handy some time

Changed

  • Default theta regularization is now based on overdispersion factor (1 + m / theta where m is the geometric mean of the observed counts) not log10(theta); old behavior available via theta_regularization parameter
  • Refactored model fitting code - is now more efficient when using parallel processing
  • Changed how message and progress bar output is controlled; integer verbosity parameter controls all output: 0 for no output, 1 for only messages, 2 for messages and progress bars
  • Increased default bin size (genes being processed simultaneously) from 256 to 500
  • Better input checking for cell attributes; more efficient calculation of missing ones

Fixed

  • Some non-regularized model parameters were not plotted

[0.2.1] - 2019-12-17

Added

  • Add function to generate data given the output of a vst run
  • Add cpp support for dense integer matrices
  • Minimum variance parameter added to vst function

[0.2.0] - 2019-04-12

Added

  • Rcpp versions of utility functions
  • Helper functions to get corrected UMI and variance of pearson residuals for large UMI matrices

Changed

  • lots of things