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Release Notes

Dynamo Ver 1.4.1

DEBUG

  • Debug and refactor scPotential (PR 624).
  • Replace deprecated np.asscalar() with np.ndarray.item() (PR 643).
  • Create chunk option for normalization and gene selection (PR 598).
  • Debug pd.state_graph() (PR 630).
  • Debug pl.jacobian_heatmap() (PR 653).
  • Debug pl.nneighbors() (PR 644).
  • Retry codecov upload (PR 656).
  • Debug vectorfield given layer input (PR 619).
  • Debug simulation module (PR 658).
  • Extra filter after pearson residuals normalization (PR 665).
  • Add missing return value to deprecated functions (PR 663).
  • Debug networks plot (PR 657).
  • Implement pl.plot_connectivity() (PR 652).
  • Debug the preprocessing of integer matrix input (PR 664).
  • Missing return value in pl.lap_min_time() (PR 668).
  • Update matplotlib Colorbar.draw_all() to Colorbar._draw_all() (PR 669).
  • Optimize code coverage tests (PR 605).
  • Debug test_gradop() by (PR 677).
  • Constraint on matplotlib version by (PR 679).
  • Upgrade code coverage to v4 (PR 684).
  • Init a branch for updating dependency (PR 690).
  • Replace louvain with leiden (PR 692).
  • Debug pl.highest_frac_genes() (PR 681).
  • Deprecate more sparse matrix .A attributes (PR 695).
  • Fix matplotlib version issues and a circular import issue (PR 686).
  • Debug set_figure_params() (PR 698).
  • Debug: shape and name mismatch in cell-wise alpha saving (PR 697).
  • Debug: The sizes of the scatter plots are not set correctly (PR 696).

Others

  • Refactor pd.fate() with Trajectory class (PR 645).
  • Reorganize estimation module (PR 662).
  • Refactor pl.scatters() and pl.scatters_interactive() (PR 654).
  • Refactor vf.VectorField() function (PR 620).
  • Docstring and type hints for the prediction module (PR 666).
  • Update docstr and type hints for External module (PR 661).
  • Add doctring and type hints for simulation module (PR 660).
  • Docstring and type hints for root folder python files (PR 667).

Dynamo Ver 1.4.0

Feature Changes

  • Shiny web application for in silico perturbation and least square action path analyses (PR 582).

  • More 3D plots (PR 597):

    • 3D scatters with Plotly and Pyvista dyn.pl.scatters_interactive().
    • 3D vectors with Plotly and Pyvista dyn.pl.cell_wise_vectors_3d().
    • 3D topography with Plotly and Pyvista dyn.pl.topography_3d().
    • 3D animation with Pyvista dyn.mv.PyvistaAnim().

  • Saved the velocity parameters in adata.varm instead of adata.var (PR 579).

  • DDRtree based pseudotime and graph learning (PR 564): dyn.tl.order_cells(), dyn.tl.construct_velocity_tree().

  • Integrated hnswlib fast nearest neighbors method (PR 552).

  • A helper functon to convert the AnnData object from Dynamo to Scvelo, or vice versa (PR 551).

  • The tools module has been reorganized (PR 625):

    • Deprecate files dynamo_fitting.py, dynamo_bk.py, dynamics_deprecated.py, utils_moments_deprecated.py.
    • Deprecate legacy functions in construct_velocity_tree.py,pseudotime.py, moments.py, clustering.py.
    • Merge utils_markers.py and markers.py.
    • Merge time_series.py (learns a direct principal graph by integrating the transition matrix between and DDRTree) and construct_velocity_tree.py(Integrate pseudotime ordering with velocity to automatically assign the direction of the learned trajectory.) to DDRTree_graph.py.
    • Reorganize some functions to utils in the following file: time_series.py, multiomics.py.
    • Rename: DDRTree_py.py to DDRTree.py, psl_py.py to psl.py.

  • Deprecate infomap clustering (PR 555).

DEBUG

  • Fixed the bug that the dyn.pl.kinetic_heatmap() couldn't be transposed caused by wrong initialization (PR 558) (PR 636).
  • Fixed the bug that dyn.pl.cell_wise_vectors() only output one color (PR 559).
  • Debugged the sampling method in tools modules (PR 565).
  • Fixed the panda error in dyn.tl.gene_wise_confidence() (PR 567).
  • Fixed the bug that pysal submodules were not imported explicitly (PR 568).
  • Debugged dyn.tl.score_cells() (PR 569).
  • Debugged the ambiguous if statement in dyn.tl.psl() (PR 573).
  • Updated all the expired links of sample dataset (PR 577).
  • Fixed the bug that processed AnnData object couldn't be saved under some cases (PR 580).
  • Debugged pp/transform.py (PR 581).
  • Debugged dyn.tl.cell_velocities() (PR 585).
  • Debugged dyn.pl.kinetic_curves() (PR 587).
  • Fixed the error caused by wrong type hints in dyn.tl.BaseVectorField.find_fixed_points() (PR 597).
  • Fixed the error caused by excessive memory usage in tests (PR 602).
  • Fixed the KeyError in dyn.pp.convert2symbol() when all genes are found (PR 603).
  • Fixed the issue that dyn.pp.highest_frac_genes() didn't support sparse input (PR 604).
  • Debugged dyn.tl.cell_growth_rate() (PR 606).
  • Debugged the arclength sampling method in dyn.pd.fate() (PR 592) (PR 610).
  • Removed unnecessary import of pandas (PR 614).
  • Debugged the dyn.pl.topography() when the color is not provided (PR 617).
  • Fixed the error that list object doesn't have to_list() method in dyn.vf.hessian() (PR 623).
  • Fixed the ambiguous if statement in the dyn.tl.MarkovChain.is_normalized() (PR 626).
  • Debugged the dyn.pd.classify_clone_cell_type() (PR 627).
  • Fixed the input of minimize() in dyn.pd.lap_T() (PR 628).
  • Fixed the bug that average parameter didn't work in dyn.pd.fate() (PR 629).
  • Debugged the dyn.pl.line_integral_conv() (PR 639).

Others

  • Now available on conda forge.
  • Removed cdlib dependency (PR 532).
  • Removed KDEpy dependency (PR 533).
  • Added code coverage report (PR 555).
  • Optimized the structure of the umap dimension reduction (PR 556).
  • Optimized the structure and supported sparse input in tools/graph_calculus.py (PR 557).
  • Updated networkx API (PR 560).
  • Replaced python-igraph dependency with igraph (PR 563).
  • Added docstrings for tools module (PR 570).
  • Removed duplicate size factor calculation (PR 596).
  • Implemented a helper function for saving the plots (PR 609) (PR 635).
  • Added docstrings for estimation module (PR 611).
  • Merged dyn.pd.rank_cells() and dyn.pd.rank_cell_groups() (PR 613).
  • Added the conda badge (PR 618).
  • Handled the duplicate files when downloading sample data (PR 621).
  • Debugged the ROC curve in Shiny app (PR 637).

Dynamo Ver 1.3.0

Feature Changes

  • The preprocessing module has been refactored:

    • Class Preprocessor is recommended for most preprocessing methods and recipes. pp.recipe_monocle, pp.recipe_velocyto has been deprecated (PR 497) (PR 500). Check the tutorials here for more instructions.

    • Normalization has been refactored (PR 474) (PR 475): pp.normalize_cell_expr_by_size_factors has been deprecated, and new APIs are:

      • pp.normalize_cell_expr_by_size_factors -> pp.calc_sz_factor, pp.normalize.

    • Gene selection has been refactored (PR 474). Now support genes selected by fano factors. APIs are pp.select_genes_monocle and pp.select_genes_by_seurat_recipe.

    • PCA has been refactored (PR 469). dyn.pp.pca_monocle has been deprecated. The new API is:

      • pp.pca_monocle -> pp.pca.

    • sctransform and pearson residuals recipe has been refactored (PR 510) (PR 512). Now those advanced methods will only be performed on X layer. Other layers will get normalized by size factors.

    • Calculation of ntr rate and pp.cell_cycle_scores has been added to the Preprocessor (PR 513). To enable cell cycle scores, set parameter cell_cycle_score_enable to True when initializing the pp.Preprocessor.

    • Now the size factors normalization will normalize all layers with its own size factors by default (PR 521). To normalize the labeled data with total size factors, we need to set the total_szfactor to total_Size_Factor explicitly.

    • Multiple new features added, includes genes selection by fano factors (PR 474), external data integration methods (PR 473) and pp.regress_out (PR 470) (PR 483) (PR 484).

    • Created more tests for preprocessing module (PR 485).

    • Replaced adata.obsm["X"] with adata.obsm["X_pca"] (PR 514).

    • Removed some console output. They can still be displayed with DEBUG logging mode.

    • Other deprecated APIs include: pp.calc_sz_factor_legacy, pp.filter_cells_legacy, pp.filter_genes_by_outliers_legacy, pp.select_genes_monocle_legacy, pp.select_genes_by_dispersion_general, pp.cook_dist, pp.normalize_cell_expr_by_size_factors. More information can be found on our preprocessing tutorials.

DEBUG

  • Fixed the bug that save_show_or_return flags not working (PR 414).
  • Enabled the leiden algorithm to accept the resolution parameters (PR 441).
  • Fixed the wrong attribute name of anndata object in utils_dimensionReduction.py (PR 458).
  • Fixed the dimensionality issue in moments.py (PR 461).
  • Fixed part of the bug that h5ad file cannot be saved correctly (PR 467).
  • Fixed the bug that pca_mean will be None under some circumstances (PR 482).
  • Removing warning message for nxviz (PR 489).
  • Corrected the norm log-likelihood function (PR 495).
  • Removed deprecated parameters in gseapy functions (PR 496).
  • Fixed the bugs that functions will raise error when no fixed points are found in vector field by sampling (PR 501).
  • Removed unwanted operations in dimension reduction (PR 502).

Tutorial Updates on Readthedocs

  • Documentation, Tutorials, and readthedocs update:

    • Update requirements for readthedocs (PR 466).
    • Update readme (PR 479).
    • Fixed documentation error caused by importing Literal (PR 486).
    • Fixed readthedocs error caused by the new version of urllib3 (PR 488).

Other Changes

  • Docstring and type hints update:

    • Updated docstring and type hints for tools module (PR 419).
    • Updated docstring and type hints for vector field module (PR 434).
    • Updated the docstring and type hints for simulation and predicting module (PR 457).
    • Update the docstring and type hints for hzplot (PR 456).

Dynamo Ver 1.1.0

Feature Changes

  • Following new function are added, exported or documented in API / class page:

    • Preprocessing: pp.convert2symbol, pp.filter_cells, pp.filter_gene, pp.filter_genes_by_pattern, pp.normalize_cells, pp.scale, pp.log1p, pp.pca
    • Kinetic parameters and RNA/protein velocity: tl.recipe_deg_data, tl.recipe_kin_data, tl.recipe_mix_kin_deg_data, tl.recipe_one_shot_data, tl.velocity_N
    • Labeling Velocity recipes: tl.infomap, tl.leiden, tl.louvain, tl.scc
    • Clustering: tl.run_scvelo, tl.run_velocyto, tl.vlm_to_adata
    • Converter and helper: vf.graphize_vecfld, vf.vector_field_function
    • Vector field reconstruction: vf.FixedPoints, vf.VectorField2D, vf.assign_fixedpoints
    • Beyond RNA velocity: vf.jacobian, vf.sensitivity
    • Vector field ranking: vf.rank_cells, vf.rank_genes, vf.rank_expression_genes, vf.rank_jacobian_genes, vf.rank_s_divergence_genes, vf.rank_sensitivity_genes
    • Vector field clustering and graph: vf.cluster_field, vf.streamline_clusters
    • Prediction pd.andecestor, pd.get_init_path, pd.least_action, pd.perturbation, pd.rank_perturbation_cell_clusters, pd.rank_perturbation_cells, pd.rank_perturbation_genes, pd.state_graph, pd.tree_model
    • Preprocessing plot: pl.biplot, pl.loading, pl.highest_frac_genes, pl.bubble
    • Space plot: pl.space
    • Kinetics plot: pl.sensitivity_kinetics
    • Vector field plots: pl.cell_wise_vectors_3d, pl.plot_fixed_points_2d
    • differential geometry plots: pl.acceleration
    • Regulatory network plots pl.arcPlot, pl.circosPlot, pl.circosPlotDeprecated, pl.hivePlot
    • fate plots pl.fate
    • heatmap plots pl.causality, pl.comb_logic, pl.plot_hill_function, pl.response
    • Predictions plots pl.lap_min_time
    • External functionality ext.normalize_layers_pearson_residuals, ext.select_genes_by_pearson_residuals, ext.sctransform

  • More differential geometry analyses

    • include the switch mode in rank_jacobian_genes
    • added calculation of sensitivity matrix and relevant ranking

  • most probable path and in silico perturbation prediction

    • implemented least action path optimization (can be done in high dimensional space) with analytical Jacobian
    • include genetic perturbation prediction by either changing the vector field function or simulate genetic perturbation via analytical Jacobian

  • preprocessor class implementation

    • extensible modular preprocess steps
    • support following recipes: monocle (dynamo), seurat (seurat V3 flavor), sctransform (seurat), pearson residuals and pearson residuals for feature selection, combined with monocle recipe (ensure no negative values)
    • following recipes tested on zebrafish dataset to make implemetation results consistent:
    • monocle, seurat, pearson residuals

  • CDlib integration

    • leiden, louvain, infomap community detection for cell clustering
    • wrappers in dyn.tl.* for computing clusters
    • wrappers in dyn.pl.* for plotting

Tutorial Updates on Readthedocs

  • human HSC hematopoiesis RNA velocity analysis tutorials

  • in silico perturbation and least action path (LAP) predictions tutorials on HSC dataset

  • differential geometry analysis on HSC dataset

    • Molecular mechanism of megakaryocytes
    • Minimal network for basophil lineage commitment
    • Cell-wise analyses: dominant interactions

  • gallery: Pancreatic endocrinogenesis differential geometry

Sample Dataset Updates

CI/CD Updates

  • update dynamo testing and pytest structure
  • test building workflow on 3.7, 3.8, 3.9 (3.6 no longer tested on github building CI)

Performance Improvements

API Changes

  • preprocess

  • pp.pca -> pca.pca_monocle

  • Native implementation of various graphical calculus using Numpy without using igraph.

Other Changes

  • general code refactor and bug fixing
  • pl.scatters refactor