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Change Log

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3.16.0 - 2018-09-14

Enhancements
  • ROC analysis: show thresholds (#3172)
  • Edit Domain: Record transformations (#3231)
  • Data Table: Enable deselection (#3189)
  • Empty helper pane message (#3210)
  • Matplotlib output for Scatter plot (#3134)
  • Scatterplot: indicate overlap of points. (#3177)
  • Selection of format and compression in save data widget (#3147)
  • OWBoxPlot: add option to sort discrete distributions by size (#3156)
  • Table: speed-up computation of basic stats of given columns. (#3166)
  • Canvas: 'Window Groups' continued (#3085)
  • Combo Box Search Filter (#3014)
  • Widget Insertion (#3179)
Bugfixes
  • Documentation fetching with redirects (#3248)
  • DiscreteVariable reconstruction (#3242)
  • io: Handle mismatched number of header/data values (#3237)
  • OWNeuralNetwork model pickling (#3230)
  • Variable: Prevent hashing of Values of DiscreteVariable. (#3217)

3.15.0 - 2018-08-06

Enhancements
  • Silhouette Plot: Add cosine distance (#3176)
  • Add pandas_compat.table_to_frame(tab) (#3180)
  • OWSelectByDataIndex: New widget (move from Prototypes) (#3181)
  • Make filters available in Orange.data namespace. (#3170)
  • Move Louvain clustering from prototypes to core (#3111)
  • OWWidget: Collapse/expand the widget on control area toggle (#3146)
  • Rank: SklScorer should use the faster SklImputer. (#3164)
  • RecentFiles: Check for missing file in workflow dir (#3064)
  • Smart widget suggestions (#3112)
  • Match Keywords in Widget Search (#3117)
  • io: Speedup write_data (#3115)
  • OWEditDomain: Enable reordering of discrete variables (#3119)
Bugfixes
  • oweditdomain: Fix an IndexError when all rows are deselected (#3183)
  • OWFreeViz: fix class density size (#3158)
  • OWBoxPlot: Fix empty continuous contingency check (#3165)
  • OWSql: enforce data download for non PostgreSQL databases (#3178)
  • owlouvainclustering: Make the task completion handler a single slot (#3182)
  • OWReport: disable save and print on empty report (#3175)
  • RemoveConstant: remove constant NaN features. (#3163)
  • utils/concurrent: Switch default thread pool (#3138)
  • OWBoxPlot: Fix quartiles computation (#3159)
  • OWBoxPlot: Plot axis labels and quartiles label layout (#3162)
  • [RFC] OWHeatMap: remove empty clusters from visualization (#3155)
  • report: Fix the number of hidden rows. (#3150)
  • [RFC] KMeans upgrade sparse support (#3140)
  • WebView fixes (#3148)
  • ci/appveyor: Update test dependencies (#3139)
  • Replace use of obsolete QStyle.standardPixmap (#3127)
  • BoxPlot: Hide groups with no instances (#3122)

3.14.0 - 2018-07-04

Enhancements
  • MergeData: add autocommit button (#3091)
  • Canvas: Window Groups (#3066)
  • Save data with compression (#3047)
  • Neural network widget that works in a separate thread (#2958)
  • Display Widgets on Top option (#3038)
  • Implement multi window editing (#2820)
  • Data Info widget displays data attributes (#3022)
  • Icon redesign: k-means, clustering, distances (#3018)
Bugfixes
  • postgres: Fix wrong discrete values (#3109)
  • OWRank: Select Attributes fixes and improvements (#3084)
  • EditDomain: Editing TimeVariable broke formatting (#3101)
  • OWMosaic: Don't offer String meta attributes (#3072)
  • owkmeans: fix initialization choice (#3090)
  • Workaround for segfaults with Nvidia on Linux (#3100)
  • Canvas: Fix 'Widgest on top' (#3068)
  • Re-cythonize with Cython 0.28 for Python 3.7 compatibility (#3067)
  • BSD compatibility patch (#3061)
  • OWScatterOWScatterPlotGraph: Match group colors with marker colors (#3053)
  • listfilter: Fix filter line edit completion (#2896)
  • VizRank: Fix race condition in toggle (#3042)
  • Heat Map: Allow labeling by TimeVariable (#3026)
  • Select Columns: Drag/drop (#3032)
  • gui: Suppress mouse button release on the combo box popup (#3025)
  • tests: Fix time tracking in process_events (#3041)
  • test_owmosaic: Cleanup/join threads on test tear down (#3040)
  • owselectcolumns: Fix performance on filtering with selection (#3030)
  • test: Fix tests for 'Datasets' widget (#3033)
  • Sorting add-ons in the alphabetical order (#3013)
  • owscatterplot: Use correct data for regression line (#3024)
  • Add-ons dialog: Restore state (#3017)
  • Feature constructor does not restore features when loading from saved workflow (#2996)
  • boxplot labels overlap (#3011)
  • owdiscretize: Fix quadratic complexitiy in the n variables (#3016)

3.13.0 - 2018-04-17

Enhancements
  • canvas/add-ons: Add extra packages via a name input dialog (#3006)
  • Variable lists (with QListView) optimizations (#2994)
Bugfixes
  • Add-ons working again (PyPI JSON interface + local official index) (#3005)
  • Fix variable type guessing (#2998)
  • Addon dialog crashes when site-packages directory does not exist (#2988)
  • Fix reading double quoted text fields (#2989)

3.12.0 - 2018-04-06

Enhancements
  • owselectrows: Change defaults for 'Purging' (#2969)
  • statistics: Speed up countnans for sparse matrices (#2965)
Bugfixes
  • Sieve Diagram: Fix spacing of axis labels (#2971)
  • Fix data reading speed (#2923)
  • KMeans clear results on k change, do not recluster (#2915)
  • gui.ControlledList: Take a weakref to listBox (#2962)
  • WidgetManager: Schedule delayed deletion for managed OWWidgets (#2963)
  • domaineditor: Give the VarTableModel a parent (#2961)
  • scatterplot: limit number of points displayed in tooltip (#2980)
  • Speed-up prediction by circumventing Instance-specific prediction. (#2959)
  • Vizrank: Properly shutdown/wait when parent deleted (#2960)
  • Test & Score: Make the scores view table non-editable (#2947)

3.11.0 - 2018-03-07

Enhancements
  • Distances: Optimize PearsonR/SpearmanR (#2852)
  • Data Table: Optimize performance (#2905)
Bugfixes
  • Save Image to SVG fixed on Qt5 (#2930)
  • Test & Score: Resort scores when data changes (#2931)
  • distribution.py: Fix computation on multiclass data (#2903)
  • contingency.pyx: Fix out of bound write (#2924)
  • Test and Score: Fix averaging over classes for binary scores (#2918)
  • sgd: Change deprecated n_iter to max_iter (#2920)
  • heatmap: Do not crash on all zero column (#2916)

3.10.0 - 2018-02-19

Enhancements
  • Select Rows: Add annotated data output (#2908)
  • canvas: Open dropped ows files (#2885)
  • Settings for HTTP and HTTPS proxies in the canvas (#2906)
  • Add-ons: Option to list only trusted add-ons (#2899)
Bugfixes
  • SPG Legend: Fix vertical spacing (#2914)

3.9.1 - 2018-02-02

Enhancements
  • Add parameters and similarity measures to tSNE (#2510)
  • Canvas: Add zoom (#2841)
Bugfixes
  • OWWidget: Store quicktip displayed state in non versioned settings dir (#2875)
  • Impute: Fix state serialization/restore (#2830)
  • Feature Constructor: Make FeatureFunc picklable (#2873)
  • Projection widgets: transform data properly (#2871)

3.9.0 - 2018-01-19

Enhancements
  • Linear Discriminant Analysis: scripting part (#2823)
  • owdistances: Add 'Normalize' check box (#2851)
  • Variable: Simplify the is_{discrete,continuous,...} implementation (#2874)
  • manifold: Use arpack for decomposition in torgerson (#2825)
  • Radviz: new widget (#2480)
  • Canvas: Improve preview rendering (#2784)
  • Linear Projection (LDA, PCA) (#2445)
  • Scatter Plot Graph: max discrete values colors and shape (#2804)
  • Scatter Plot Graph: legend opacity (#2819)
Bugfixes
  • Add labels to combo when data comes from distance matrix (#2866)
  • utils/concurrent: Handle an empty futures list (#2834)
  • OWWidget: Move 'splitter' to private members (#2847)
  • Radviz: enable VizRank numeric color (class) (#2853)
  • Bincount: Fix crash on array with all nans (#2831)
  • mds: Fix incorrect assert (#2844)
  • VizRank (Linear Projection, Radviz): spin disabled/enabled (#2846)
  • Windows installers: Python lookup (#2827)
  • Canvas: Palette propagation (#2760)
  • mssql: Catch errors due to incorrect connection params (#2838)
  • canvas/addons: Fix progress dialog showing up when not necessary (#2833)
  • ContextHandler: Merge local context into globals before serialization (#2837)
  • Hierarchical Clustering: Fix size constraints (#2796)
  • canvas/annotationitem: Use separate item for shadow base (#2821)
  • Scatter Plot Graph: vars instead of indices & remove dead code (#2815)
  • Table: classes (Y) must be float (#2822)

3.8.0 - 2017-12-01

Enhancements
  • New signals: Trees, Forest (#2801)
  • Scatter Plot: Improve tooltips (#2703)
  • Allow custom (generic) names in Transpose Widget (#2737)
  • Scatter Plot VizRank: some fixes and regard to color (#2787)
  • Improved Sparsity Handling (#2341)
  • Error Reporting: send report even when recursion error is raised
  • test_owdatasets: Test files at different (dir tree) depths
  • [FIX] Rank: should not fail on data with no attributes
  • Domain: Add copy method (#2734)
  • Domain Model: order without separators (#2697)
Bugfixes
  • Test & Learn: do not crash on a data with class only nans (#2751)
  • FreeViz: 2 issues when no data (#2780)
  • [ENH] Scatter Plot VizRank: some fixes and regard to color (#2787)
  • Scatter Plot Graph: crash on metas column with all 0 values (#2775)
  • Scatter Plot: subset data (#2773)
  • Scatter Plot: VizRank disabled when no class vars (#2757)
  • Error Reporting: send report even when recursion error is raised
  • Select Rows: None on output when no data (#2726)
  • test_owdatasets: Test files at different (dir tree) depths
  • [FIX] Rank: should not fail on data with no attributes
  • Predictions: space added before bracket in meta name. (#2742)
  • Fix AbstractSortTableModel.mapFromSourceRows for empty list or array (#2730)
  • Correspondence Analysis: do not crash when no categorical (#2723)
  • ScatterPlotGraph: fix zoom CTRL + and CTRL - (#2716)
  • errorreporting: Remove use of pip internal api (#2724)

3.7.1 - 2017-11-17

Enhancements
  • MDS: Support showing textual features as labels (#2699)
Bugfixes
  • canvas/canvasmain: Fix 'Examples' action handling in the welcome dialog (#2779)
  • Nomogram on PyQt4 (#2763)
  • Broken installation of Installation of wheels (#2765)
  • Add-on installation crashes (when conda not in PATH) (#2725)

3.7.0 - 2017-10-27

Enhancements
  • Data Sets: Add filter (#2695)
  • Add-on installation with Conda (#2561)
  • Add Groups column to Selected Data in Scatter plot output (#2678)
  • DomainModel: Don't Show Hidden Variables by Default (#2690)
  • FreeViz: new widget (#2512)
  • FreeViz script (#2563)
  • Boxplot: Allow hiding labels (#2654)
  • owmds: Support selection/output of multiple groups (#2666)
  • Widget status bar buttons (#2514)
  • owfile: allow multiple readers with same extension (#2644)
Bugfixes
  • Tree Viewer: reset view to top left (#2705)
  • ScatterPlot Crashes on Data With Infinity Values (#2709)
  • Scatter Plot: regression line: show r instead of k (#2701)
  • settings: Do not clear schema_only settings on close_context (#2691)
  • Statistics.unique: Fix Sparse Return Order For Negative Numbers (#2572)
  • Statistics.countnans/bincount: Fix NaN Counting, Consider Implicit Zeros (#2698)
  • MDS: No optimization when subset data (#2675)
  • Outliers widget no longer checks classes and doesn't crash on singular covariances matrices (#2677)
  • OWRank: Fix autocommit (#2685)
  • OWScatterPlot: Change output Feature to AttributeList (#2689)
  • OWSql does not save selected table/query (#2659)
  • Scatter Plot: Scatter Plot automatically sends selection (#2649)
  • Silhouette plot rendering (#2656)
  • Variable.make returns proxies (#2667)
  • owhierarchicalclustering: Fix performance on deselection (#2670)
  • Report Table: Make Table Headers Bold (#2668)
  • MDS: primitive metas, init_attr_values (#2661)
  • MDS: Primitive metas (#2648)
  • MDS: similar pairs and combos not cleared (#2643)
  • Scatter Plot: remove dead and commented code, tests (#2627)

3.6.0 - 2017-09-29

Enhancements
  • PythonScript: Multiple inputs (#2506)
  • DomainEditor: Add horizontal header (#2579)
  • Feature Constructor: Support additional functions () (#2611)
  • Miniconda installer: Install conda executable (#2616)
  • Datasets: New widget (#2557)
  • Neural Network widget (#2553)
Bugfixes
  • settings: Store settings version in the serialized defaults (#2631)
  • canvas/stackedwidget: Check if the new geometry is the same as the old (#2636)
  • OWRank: sort NaNs last; fix sort indicator (#2618)
  • Schema-only settings in components (#2613)
  • OWBaseLearner: Save learner name in workflow (#2608)
  • Saving of multiple selections in ScatterPlot (#2598)
  • OWBoxPlot: Faster selection (#2595)
  • preprocess.randomization: Do not use the same seed for X, Y, and meta (#2603)
  • Slow Rank (#2494)
  • setup: Increase required setuptools version (#2602)
  • Disable pyqtgraph's exit cleanup handler (#2597)
  • ScatterPlotGraph: fix labelling when there are missing data (#2590)
  • canvas: Fix link runtime state modeling (#2591)
  • Tree: Reintroduce preprocessors. (#2566)
  • canvas/preview: Fix workflow preview rendering (#2586)
  • Fix saving reports on Python 3.6 (#2584)
  • Fix failing report tests (#2574)
  • widgets/tests: Compatibility with Python 3.5.{0,1} (#2575)

3.5.0 - 2017-09-04

Enhancements
  • Proper calculation of distances (#2454)
  • OWFeatureConstructor: Add new functions from numpy (#2410)
  • Widget status bar (#2464)
  • Impute widget: Parallel execution in the background (#2395)
Bugfixes
  • Mosaic Display: subset data (#2528)
  • MDS: Optimize similar pairs graphics construction (#2536)
  • Error Reporting: read attached schema file as utf8 (#2416)
  • Another color palette when too many colors needed (#2522)
  • Widget: splitter sizes (#2524)
  • Silhouette Plot: another memory error (#2521)
  • Fix asynchronous widget tests (#2520)
  • Mosaic Vizrank: compute_attr_order is called every step (#2484)
  • widgets/model: Restore 'explicit' hint flag for 'Coefficients' output (#2509)

3.4.5 - 2017-07-27

Enhancements
  • OWMDS, OWLinearProjection: Save selection in workflow (#2301)
  • SQL: Save user name and password via credentials manager (#2403)
  • Canvas Annotations: Text markup editing (#2422)
  • New windows installer scripts (#2338)
Bugfixes
  • Tree: Fix min_samples_leaf check (#2507)
  • Tree: Support classification on sparse data (#2430)
  • Trees: Support regression on sparse data (#2497)
  • Trees: Fix predictions on sparse data (#2496)
  • Change Variable Icons: Discrete -> Categorical, Continuous -> Numeric (#2477)
  • Distributions: Show probabilities upon selection (#2428)
  • Manifold Learning: Handling out of memory error (#2441)
  • CN2 Rule Induction: Handling out of memory error (#2397)
  • Hierarchical Clustering: Explicit geometry transform (#2465)
  • Scatter Plot Graph: Legend symbols color (#2487)
  • Table: Fix printing data with sparse Y (#2457)
  • Ensure visible nodes after opening a workflow. (#2490)
  • Select Rows: Removing Unused Values for Discrete Variables in Sparse Data (#2452)
  • simple_tree.c: Fix mingw compiler compatibility (#2479)
  • Add-ons: Fix Installation of Official Add-ons Through Drag & Drop (#2481)
  • Mosaic: Clear when data is disconnected (#2462)
  • Create Class: Class name cannot be empty (#2440)
  • WidgetSignalsMixin: Fix input/output ordering for 'newstyle' signals (#2469)
  • Table: Update ids in Table.__del__ (#2470)
  • Preprocess: Fix RemoveNaNClasses / Use existing HasClass (#2450)
  • SQL: Fixes for Custom SQL option (#2456)
  • OWColor: Fix propagating changes to the output (#2379)
  • Distances: Prevent inf numbers (#2380)
  • Test and Score: Show default columns (#2437)
  • Silhouette Plot: Now setting axis range properly (#2377)
  • Logistic Regression: Impute (#2392)
  • schemeedit: Clear edit focus before removing items (#2427)
  • Disable menu and mouse zoom in all evaluate's plotting widgets. (#2429)
  • canvas: Fix proposed connection scoring for dynamic signals (#2431)
  • ROC Analysis: Color support for more than 9 evaluation learners (#2394)
  • Scatter Plot: Two minor errors (#2381)
  • Feature Constructor: No fail when no values (#2417)

3.4.4 - 2017-06-16

Enhancements
  • SimpleTreeLearner: Release GIL & thread safety (#2398)
  • Improve support for HiDPI displays (#2325)
  • Add a tutorial section on responsive GUI (#2318)
  • Check if updates are available upon startup (#2273)
Bugfixes
  • Vizrank: interact with gui from main thread only (#2389)
  • Some preprocessors couldn not be pickled (#2409)
  • MDS: Support distances without domain information (#2335)
  • Paint Data: Fix crash on empty data (#2399)
  • Distributions: do not crash on empty data (#2383)
  • Update checker: LooseVersion does not handle str parts (#2401)
  • owpreproces: Stable order of continuizers (#2400)
  • owmanifoldlearning: Remove n_jobs=-2 parameter (#2371)
  • Scatter Plot: features and no data (#2384)
  • tests: Fix test errors when running with numpy 1.13.0 (#2396)
  • OWColor: Use DiscreteVariable values for matching contexts (#2376)
  • Outliers: handling memory error (#2374)
  • score.FCBF: do not segfault on continuous variables w/ <0 values (#2355)
  • Rank widget supports Scorer inputs (#2350)
  • Silhouette Plot: handling memory error (#2336)
  • Distances: handling errors due to too large arrays (#2315)
  • Confusion Matrix: do not append extra column if empty (#2386)

3.4.3 - 2017-06-03

Enhancements
  • Venn diagram: Support sparse data (#2334)
  • PCA: Support sparse data (#2313)
  • Impute: Support sparse data (#2357)
  • Merge: Support sparse data (#2305)
  • Scatter Plot: Support sparse data (#2152)
  • Manifold: Support t-SNE on sparse data (#2281)
  • Mosaic: Selectable color variable (#2133)
  • Test & Score: Allow choosing columns (#2257)
  • Preprocess: Add all available methods to feature selection (#2205)
  • Scatter Plot: Support string metas labels (#2360)
Bugfixes
  • Fix and improve Precision, Recall, F1 (#2369)
  • Paint Data: Stores data in list and not np.array (#2314)
  • Paint Data: Save and load labels (#2259)
  • File: No domain or empty domain -> no data (#2337)
  • File: Support sparse data in Domain Editor (#2245)
  • File: Raise and handle Exc. when file bad pickle (#2232)
  • Test & Score: Fix migration of old settings (#2254)
  • Test & Score: Show correct error (#2263)
  • Test & Score: Instantly recognize new input (#2247)
  • Test & Score: Handling memory errors (#2316)
  • Tree Viewer: Check if there is selected class value (#2224)
  • CredentialManager: Handling password credentials error (#2354)
  • RowInstance: Fix sparse check (#2362)
  • Cross Validation: Cast fold number to string (#2348)
  • Silhouette Plot: Elide hover labels if labels are long (#2278)
  • Select Rows, Table: Filtering string values (#2176)
  • Report: Handle PermissionError when trying to save (#2225)
  • Continuize: Prevent crashing - column with equal and NaN values (#2144)
  • Add-ons: Handling ValueError due to connection problems (#2239)
  • Correspondence: Prevent crashing when cont attr has one value (#2149)
  • WebEngineView: Insert JS if loading already started (#2230)
  • Manifold Learning: handling numpy LinAlgError (#2228)
  • MDS: Fix widget update scheduling (#2211)
  • Settings: Handle permission errors when saving settings (#2147)
  • Map: Minor fixes (#2356)

3.4.2 - 2017-04-19

Enhancements
  • Nomogram: Support for sparse data (#2197)
  • Add PDF format to image exporters (#2210)
  • Reimplement macOS application (.app) build scripts (#2217)
  • Canvas: Use 'windowFilePath' to display display current filename instead of the title (#2206)
  • OWTestLearners: Cross validation by feature (#2145)
  • Pythagorean tree: Make border scale invariant (#2141)
Bugfixes
  • Scatterplot crashes when loaded from old workflow (#2241)
  • Error Report: URL changed (#2220)
  • Scatter Plot: update class density (#2238)
  • KMeans: should not crash when there is less data rows than k (#2172)
  • Edit Domain: Prevent duplicate variable names (#2146)
  • Scatter Plot: left margin (axis y) is now adapting (#2200)
  • Predictions widget: handle similar but different domains (#2129)
  • OWNomogram: Do not paint scene until the widget is not open (#2202)
  • Test & Score: crashing prevented when learner disconnects (#2194)
  • Widget Logistic Regression: can handle unused values (#2116)
  • stats: Open Corpus in OWDataTable after transposing it (#2177)
  • Rank: fixes creating Table with infinite numbers (#2168)
  • Add-ons: Problems with datetime parsing (#2196)
  • OWPredictions: Allow classification when data has no target column (#2183)
  • OWDataSampler: Fix typo boostrap to bootstrap (#2195)
  • All widgets are set to auto* when they are used for the first time (#2136)
  • Preprocess: enums containing function names changed (#2151)
  • Fitter: Fix used_vals and params not being set (#2138)
  • VizRankDialog: Stop computation when parent widget is deleted (#2118)
  • Distributions Report: Visualizations are now fitted (#2130)
  • Fitter: Change params uses default if None (#2127)
  • Fix invalid settings reuse in File widget (#2137)
  • Scatter Plot - Prevent crash due to missing data (#2122)
  • Sieve Diagram: Using datasets with meta data (#2098)

3.4.1 - 2017-03-16

Enhancements
  • Scatterplot: Implement grouping of selections (#2070)
Bugfixes
  • Discover widgets when some dependencies are missing (#2103)
  • Select Rows: "is defined" fails (#2087)
  • report comments and OWFile reporting filename (#1956)
  • owcorrespondence: Handle variables with one value (#2066)
  • OWTreeViewer: Fix trees being displayed differently for same tree object (#2067)
  • Fitter: Properly delegate preprocessors (#2093)

3.4.0 - 2017-03-06

Enhancements
  • OWSGD: Output coefficients (#1981)
  • OWNomogram: Add a new widget (#1936)
  • OWRandomize: Add a new widget (#1863)
  • Map widget (#1735)
  • Table.transpose: Use heuristic to guess data type of attributes of attributes (#1844)
  • Create Class widget (#1766)
Bugfixes
  • Heatmap: Fix crash on data with empty columns (#2057)
  • ScatterPlot: Fix crash when coloring by column of unknowns (#2061)
  • owpreprocess: Handle columns with only NaN values (#2064)
  • File: Disallow changing string columns to datetime (#2050)
  • OWKMeans: Auto-commit fix and silhuette optimization (#2073)
  • OWDistributions: Fix binning of meta attributes (#2068)
  • SelectRows: Fix loading of conditions (#2065)
  • OWRandomize: New icon (#2069)
  • ZeroDivisionError owmosaic.py (#2046)
  • OWMosaic: Fix crash for empty column (#2006)
  • Fitter: Fix infinite recursion in getattr (#1977)
  • OWTreeGraph: Update node text when selecting target class (#2045)
  • Prevent PickleError (owfile.py) (#2039)
  • Fix Chi2 computation for variables with values with no instances (#2031)
  • OWDistanceMatrix: Remove quotes with string labels (#2034)
  • owheatmap: Prevent sliders to set Low >= High (#2025)
  • WebviewWidget: WebEngine Don't Grab Focus on setHtml (#1983)
  • OWFile: Show error msg when file doesn't exists (#2024)
  • Preprocess Widget: Continuize type error (#1978)
  • data/io.py Metadata file not saved anymore when it is empty (#2002)
  • Import from AnyQt instead from PyQt4 (#2004)
  • OWNomogram: Adjust scene rect (#1982)
  • owconcatenate: Fix domain intersection (remove duplicates) (#1967)
  • preprocess: Reset number_of_decimals after scaling (#1914)
  • Treeviewer sklearn tree compatibility (#1870)
  • OWSVR: Update learner when SVR type changes (#1878)
  • Tree widget binarization (#1837)

3.3.12 - 2017-02-14

Bugfixes
  • Highcharts: Fix freezing on Qt5 (#2015)
  • Handle KeyError Mosaic Display (owmosaic.py) (#2014)
  • Loading iris on C locale (#1998)
  • Handle KeyError Sieve Diagram widget (owsieve) when one row (#2007)
  • Test Learners: Fix AUC for selected single target class (#1996)
  • OWDataSampler: Fix 'Fixed proportion of data' option (#1995)

3.3.11 - 2017-02-03

Enhancements
  • Widget testing utilities (#1939)
Bugfixes
  • KMeans: Fix crashes when underlying algorithm fails (#1974)
  • owpaintdata: Adjust color model to input dataset (#1988)
  • scatterplot: Fix density image (#1990)
  • owpaintdata: Fix an error when the input dataset contains NaN (#1972)
  • Table: Ensure correct dtype in _compute_distributions (#1969)
  • Evaluation Results input validation (#1954)
  • owimpute: Fix editing of individual imputers (#1966)
  • gui: Trigger callback in SpinBoxWFocusOut only if value changed (#1979)
  • Python 3.6 compatibility (#1963)
  • File: Fix crash when last_path is None (#1961)
  • Paint Data: in-place output modification (#1959)
  • DataSampler: Fix crash when stratifying unbalanced datasets (#1952)
  • Table.repr: Fix for sparse data with < 5 instances (#1951)
  • Catch errors during learning in learner widgets (#1949)
  • OWMosaic: Fix crash for attribute with no values (#1941)
  • Impute: Fix crash when model-based imputation fails (#1937)
  • OWSieve: Fix crash for attribute with no values (#1934)
  • Tree: Fix crash when two attributes equal number of values (#1928)
  • Store changed variables in File widget (#1805)

3.3.10 - 2017-01-18

Enhancements
  • Input/output signal replacement declarations (#1810)
Bugfixes
  • MDS Widget: Handle NaN values for plot point styling (#1931)
  • OWPCA: Fix crash for dataset with no rows or no attributes (#1915)
  • OWMosaic: Discretize metas as well (#1912)
  • owfeaturecontructor: Fix an IndexError accessing exception's args (#1905)
  • owrank: Remove super() call from migrate_settings (#1902)
  • OWBoxPlot: Fix ordering of boxes (#1900)
  • canvas/readwrite: Fix byte literal serialization (#1898)
  • owpca: Handle the case of 0 total variance in the PCA solution (#1897)
  • Copy data attributes for annotated data set (#1895)
  • colorpalette: Fix AttributeError (#1889)
  • OWDistributions: Reset combos when data is removed (#1887)
  • Concatenate bugfix (#1886)
  • OWPredictions: Fix crash when opening report (#1884)
  • owsilhouetteplot: Fix TypeError when cluster column is an object array (#1876)
  • OWSave: Safer Check if Writer Support Sparse (#1864)
  • OWImageViewer: Fix selection with missing values (#1861)
  • owselectcolumns: Fix auto commit on any change (#1859)
  • Table.transpose: Keep metas array two dimensional when no attributes in domain (#1855)
  • Select Rows filter enum (#1854)
  • Scatter plot: don't crash on report without data (#1840)
  • Crash on ctrl-c/cmd-c in widgets without graphs (#1827)
  • Fix crash in listview if labels are changed before calling setitem (#1825)
  • Scatterplot: Allow labelling by string attributes (#1812)
  • Fix copy to clipboard in "Data Table" widget (#1808)
  • TreeGraph: Compatibility with old schemas (#1804)

3.3.9 - 2016-12-02

Enhancements
  • OWTranspose: Add a new widget (#1738)
  • Add appveyor configuration (#1693)
  • Vizrank indicators and filters (#1746)
  • OWManifoldLearning: MDS - enable PCA initialization (#1702)
  • Add VizRank to Mosaic (#1699)
  • Setting migration (#1724)
  • widget: Allow subclasses to disable the default message bar widget (#1543)
  • Manifold Learning (#1624)
  • SQL Server support in SQL widget (#1674)
  • Visualize widgets: Output Annotated data and Fixups (#1677)
  • Add support for PyQt5 (#1171)
  • Simple benchmarking suite. (#1510)
  • Canvas: Always show the link dialog if the user holds Shift (#1673)
  • Scatterplot, HeatMap, TreeGraph, ConfusionMatrix and Unsupervised widgets: Output Flagged Data (#1655)
  • CN2RuleViewer: Output sample of training data in absence of separate data (#1667)
  • Metadata for data files (#1603)
Bugfixes
  • owrank: Add migrate_settings (#1797)
  • owconfusionmatix: Add migrate_settings (#1796)
  • Improve ada boost widget (#1787)
  • OWBoxPlot: Fixups (#1783)
  • Filter: Fix FilterContinuous eq operator (#1784)
  • OWDistanceMatrix: attribute in context (#1761)
  • Hierarchical clustering: Make annotation a context setting (#1748)
  • Fix varius deprecation (and other) warnings (#1774)
  • Fix transformation for non primitive variables (#1770)
  • TimeVariable: don't crash Data Table when reloading and Visualize ... (#1760)
  • OWDistances: Mahalanobis wrong dimensions notification. (#1762)
  • Switch Sieve to DomainModel, which also fixes VizRank crash on meta attributes (#1642)
  • Confusion matrix: Map annotated data through row_indices, add probabi… (#1720)
  • OWLoadClassifier: Show message on unpickling error (#1752)
  • Silhouette Plot: Fixes (#1747)
  • canvas/toolgrid: Remove (unused) mouse press event tracking (#1740)
  • Box plot: Handle situation when quantiles can't be computed (#1742)
  • owfile: Hide apply button after resetting editor_model (#1711)
  • oweditdomain: Initialize var attribute (#1731)
  • FeatureConstructor: Fix crash when new variable is created without data (#1733)
  • owpythonscript: Fix QFileDialog.get{Save,Open}FileName usage (#1726)
  • DendrogramWidget: Prevent a zero division error (#1725)
  • owfile: Skip add_origin if no filename (#1717)
  • OWFile: Do not load large files automatically (#1703)
  • Do not show messages when data is removed (#1706)
  • Confusion Matrix: Show error on regression results (#1709)
  • Fix tests (#1698)
  • Scatter Plot: Fix a error when restoring from pre DomainModel workflows (#1672)
  • Tree Scorers: Change 'int64_t' to 'intp_t' for platform independence (#1687)
  • OWTable: Sort Continuous metas as floats; not strings (#1678)
  • Error Reporting: Temporary last open/save directory (#1676)
  • TableModel: Don't crash on empty sparse data (#1675)
  • Statistics.util.stats: Fix negative #nans for sparse (#1659)
  • MDS Widget: Fix zero length line, gray square bug (#1670)
  • Fix an error when using latest pyqtgraph develop snapshot (#1662)
  • OWHeatMap: Resend 'Selected Data' when settings change (#1664)
  • Fix pythagoras tree tooltip for regression trees (#1660)
  • OWConfusionMatrix: Output None when no data is selected (#1653)
  • OWBoxPlot: Reset widget's appearance when data is removed (#1654)

3.3.8 - 2016-10-11

Enhancements
  • CredentialManager: Store passwords in System Keyring Services (#1641)
  • Extend widget creation policy (#1611)
  • File widget improvements (#1607)
  • Remote reporting of unexpected errors (#1558)
  • OWRank: Widget improvements (#1560)
  • canvas: Indicate runtime state on links (#1554)
  • Rule induction (CN2) (#1397)
  • Upgrade OWSvm unittests (#1499)
  • Enable Ward clustering in Hierarchical clustering widget (#1515)
  • PCA transformation speedup (#1539)
Bugfixes
  • owsql: Fix bug when using connection before established (#1638)
  • Scatterplot: Reintroduce sliders for size and opacity (#1622)
  • Reporting tabular in Data Table and Rank widgets (#1573)
  • BoxPlot crashes on variables with no known values (Fixes #1568) (#1647)
  • Canvas: Replace illegal file-name characters with _ when saving workf… (#1644)
  • OWScatterPlot: Fix progress bar percentages running over 100% (#1645)
  • OWFile: Report errors for incorrect file formats instead of crashing (#1635)
  • OWFeatureConstructor: Fix domain check for only meta data sets (#1632)
  • gui.lineEdit: Restore changed state tracking (#1630)
  • errorreporting: Fix an KeyError for a missing 'Widget Module' entry (#1625)
  • win-installer: Build scikit-learn in windows installer build script (#1623)
  • owlearnerwidget: Fix output initialization (#1562)
  • gui: Add a push button class adapted for variable width text (#1614)
  • : Add Explicit flag to supplementary Table learner output (#1617)
  • Silhouette: Auto-commit on changing checkbox state (#1606)
  • Linear regression: Fix Elastic net; Fix Auto-apply buttons (#1601)
  • ROC Analysis - Fix roc averaging (#1595)
  • OWBaseLearner: Do not re-fit if name has changed (#1580)
  • Context attributes with metas in Sieve and Mosaic (#1545)
  • Variable: Fix Variable.copy for StringVariable and TimeVariable (#1589)
  • Stats: Fix counting of missing values for non-numeric data (#1585)
  • Load Classifier widget sends classifier on init (#1584)
  • Context settings (#1577)
  • Fixed svg function to return svg chart together with container div for highcharts (#1541)
  • Fix compatibility with Color widget (#1552)
  • Gini impurity: formula and docstring fixed. (#1495)
  • owimageviewer: Open local images directly (#1550)
  • Fix loading of datasets with paths in variable attributes (#1549)
  • Confusion matrix: fix selected_learner setting (#1523)
  • canvas/addons: Remove wrong/unnecessary proxy mapping (#1533)
  • Scatterplot: Score Plots crash if multiple attributes have the same score (#1535)
  • ScatterPlot: Score Plots window title changed to title case (#1525)
  • Predictions: column size hint (#1514)

3.3.7 - 2016-08-05

Enhancements
  • ImageViewer: Add a 'Preview' like window (#1402)
  • Pythagorean tree and Pythagorean forest widgets (#1441)
  • New workflow examples for the Welcome screen (#1438)
  • Test widgets on travis (#1417)
  • Save painted data to schema (#1452)
  • Welcome screen: New icons for welcome screen (#1436)
  • SqlTable: Automatically recognize date/time fields (#1424)
  • Proxy support for add-on installation (#1379)
  • Automatically create required SQL extensions (#1395)
  • Ranking for Sieve, refactoring of Sieve, Mosaic and VizRank (#1382)
  • Rank adopted for sparse data (#1399)
  • PCA: Add lines and labels showing the explained variance (#1383)
  • Implement copying graph to clipboard using Ctrl-C (Cmd-C) (#1386)
  • Parallelized cross validation & other evaluation methods (#1004)
  • Image viewer thumbnail size (#1381)
Bugfixes
  • Table names set by readers (#1481)
  • OWRandomForest: Fix, refactor and widget tests (#1477)
  • KNN: Fix crash when Mahanalobis metric is used (#1475)
  • Fix AdaBoost widgets and add some tests (#1474)
  • Table: Fix ensure_copy for sparse matrices (#1456)
  • statistics.utils: Fix stats for sparse when last column missing (#1432)
  • MDS and Distances widges fix (#1435)
  • OWBaseLearner: Learner name is changed on output when user changes it and auto apply selected (#1453)
  • Stop advertising support for weights in LogisticRegression. (#1448)
  • OWScatterPlot: Fix information message reference (#1440)
  • Fix Tree preprocessor order. (#1447)
  • SqlTable: Cast to text for unknown and string types (#1430)
  • NaiveBayes: Handle degenerate cases (#1442)
  • OWBoxPlot: Show corresponding label when ploting discrete variable (#1400)
  • Lin and Log Regression: Prevent double commit (#1401)
  • KMeans: Silhouette score format precision fixed to integer (#1434)
  • Select Rows: skip undefined TimeVariable filters (#1429)
  • OWTestLearners: Fix reporting results table (#1421)
  • Scatterplot: Sends none in no instance selected (#1428)
  • PCA: Fix the variance spin. (#1396)
  • overlay: Auto disconnect when the overlay widget is deleted (#1412)
  • PaintData: Send None instead of empty table when the plot is empty (#1425)
  • Rand Forest Class: Min sample replaces max leaf nodes (#1403)
  • SelectRows: Index attrs only by visible in set_data (#1398)
  • File: Stores filenames to image attributes (#1393)
  • Fix a logging error on windows (#1390)
  • OWLearnerWidget: Don't crash when training data contains no features (#1389)
  • TimeVariable: fix repr rounding and repr for nan (#1387)

3.3.6 - 2016-06-24

Enhancements
  • Automatically discretize continuous variables in Sieve (#1372)
  • Nicer reporting of tabular data (e.g. Confusion Matrix) (#1309)
  • Match only at the beginning of word in quickMenu search (#1363)
  • Univar regression coefficients (#1186)
  • Add Mahalanobis distance (#1355)
  • Move Data Table higher in the 'suggested widgets' list (#1346)
  • Support Distances on Sparse Data (#1345)
  • Add auto apply to Test & Score (#1344)
  • Support unix timestamps in TimeVariable (#1335)
  • Skip Hidden Attributes in SelectRows (#1324)
  • Preprocessor widget: add random feature selection (#1112)
  • Sort list of available add-ons (#1305)
Bugfixes
  • Fix and improve handling of input data in PaintData (#1342)
  • Mosaic: Output original data, not discretized (#1371)
  • Fix report for OWLinearProjection (#1360, #1361)
  • Fix auto-apply in SelectColumns (#1353)
  • Fix a RuntimeError in ImageViewer when clearing the scene (#1357)
  • Use https to query pypi API (#1343)
  • OWBaseLearner: Add name attribute to learner (#1340)
  • Pass data attributes after preprocess. (#1333)
  • Better support for sparse data (#1306)
  • gui.auto_commit: Fix crash when caller gives argument (#1325)
  • Fix image viewer runtime error (#1322)
  • Better selection indicators in canvas (#1308)
  • Open correct help file for add-on widgets (#1307)

3.3.5 - 2016-06-01

Bugfixes
  • Revert hack that caused missing icons in osx build
  • Fix installation in environments without numpy installed (#1291)
  • Allow running of library test when PyQt is not available (#1289)

3.3.4 - 2016-05-27

Enhancements
  • Install add-on by dragging zip/tgz/wheel onto the addons dialog (#1269)
  • Added missing reports (#1270, #1271, #1272, #1273, #1279)
  • Add auto-apply checkboxes to learner dialogs (#1263)
  • Sort numeric values as numbers in Table (#1255)
  • Open dragged files in OWFile (#1176)
  • Support context cloning in FeatureConstructor and SelectRows (#1196)
Bugfixes
  • Depend on scikit-learn>=0.17 (#1277)
  • Fix installation problem on windows (#1278)
  • Fix crash in K-means when silhouette cannot be computed (#1247)
  • Fix crash in Distributions on empty data (#1246)
  • Reset outputs in MergeData (#1240)
  • Compute distances between constructed Instances (#1242)
  • Fix links in Changelog (#1244)

3.3.3 - 2016-05-03

Bugfixes
  • Revert installation of desktop launcher on Linux (#1218)
  • Fix a crash when learner is connected to file (#1220)

3.3.2 - 2016-04-22

Enhancements
  • New preprocessors ReliefF and FCBF (#1133)
  • New feature scorers ANOVA, Chi2 and Univariate Linear Regression (#1125)
  • Mosaic plot can display numeric attributes (#1165)
  • Sheet selection for excel files in File widget (#1164)
  • Check code quality with pylint on Travis (#1121)
  • Improve PyQt5 forward compatibility (#1029)
  • Include default datasets in File widget (#1174)
  • Install desktop launcher on linux (#1205)
Bugfixes
  • Fix a bug in nested transformation of instance (#1192)
  • Fix vizrank's crash when pair had no valid data (#1189)
  • Save Graph doesn't save axes (#1134)
  • Open included tutorials with correct dataset (#1169)
  • Disable bsp index on the main canvas scene (#1168, #1173)
  • Fix FeatureConstructor crash with Python 3.5 (#1157)
  • Include feature names in Rank Widget report (#1022)
  • Decrease memory consumption in PCA (#1150)
  • Fix dragging of treshold in PCA widget (#1051)
  • Save TimeVariable in ISO 8601 format (#1145)
  • Allow use of feature metadata in MDS (#1130)
  • OWSelectColumns: fix drag and drop for features with Unicode names (#1144)
  • Warn when setting values are not present on instance (#1139)
  • Fix printing of Table with a TimeVariable (#1141)
  • Fix Test & Score widget report (#1138)

3.3.1 - 2016-03-24

Enhancements
  • Rank widget outputs scores
  • SGD Regression widget: Fixed layout and added reporting
Bugfixes
  • Windows installer: update pip on target system if required

3.3 - 2016-03-18

Enhancements
  • Changed layout of File widget
  • Distance matrix widget
  • Meta attributes in Sieve and Mosaic
  • New type of variable: Time variable
  • Report for Distance Transformation widget
  • Report for Linear Regression widget
  • Report for Univariate Regression (fixes #1080)
  • score.FCBF: a Fast Correlation-Based Filter for feature selection
  • Sieve enhancements
  • Silhouette Plot widget
  • Venn Diagram: Add option to output unique/all instances.
  • Widgets for saving and loading distances
Bugfixes
  • breast-cancer.tab: change type of tumor-size column (fixes #1065)
  • Color: Do not resize columns in continuous table to contents (fixes #1055)
  • Exporting graphs to dot format
  • OWDistributions: Do not remove constant attribute and do not draw if there is no data
  • OWRank: Give name to Scores output table
  • OWRank no longer crashes when additional learners are available
  • ReliefF: Support for missing target values
  • Report: Fix crash on reporting tables
  • RF without pruning by default
Documentation
  • Update build/install/contributing READMEs
  • Update documentation in widget.rst

3.2 - 2016-02-12

  • Finalized Orange 3.2, switched to stable(r) release cycles

0.1 - 1996-10-10

  • Initial version based on Python 1.5.2 and Qt 2.3