Changelog

v1.4.3

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Switching to core-js 3. Thanks to @kbrown and @Wildhammer. That was a nightmare.

v1.4.2

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Fix core-js version in order to avoid errors related to core-js 3 npm support. Thank you to @kbrown and @Wildhammer.

v1.4.1

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Fix errors on IE11 thanks to mbkupfer !!
  • It's not necessary to update the version if you use it in nodejs.

v1.4.0

Author: Guillaume Mousnier

Type: Feature

Changes:

  • Replacing tape by ava for unit testing.
  • Change docker-compose to use node LTS (10).
  • Drop useless babel dependencies.
  • Replace webpack by rollup (easier to configure).
  • Drop webpack completely
  • Drop support for es3. You can add it by following the guide.
  • Correct a warning about fs module for front-end builds.
  • Remove a circle dependency (dataframe.js -> groupedDataframe.js -> dataframe.js)
  • Add .tail, .head, .slice, .getRow, .setRow methods.
  • A filtered DataFrame with empty rows will now returns its columns.
  • Add .fillMissingValues, dropMissingValues
  • Add a new parameter to sortBy in order to place missing values.
  • Drop rawgit url to a github pages url.

v1.3.2

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Correction of bugs related to .reduce on empty or one length array.

v1.3.1

Author: @rjrivero

Type: Hotfix

Changes:

  • Correction of a performance regression on groupBy (get in 1.3.0). Thanks to @rjrivero.

v1.3.0

Author: Guillaume Mousnier, @rjrivero, @martinv13, @Jefftopia

Type: Feature

Changes:

  • dataframe-js can now be used in TypeScript (typing is automatically generated, but it works). Thanks to @willkara.
  • A new options parameter is available as DataFrame constructor third parameter.
  • You can add new modules to your DataFrame via the DataFrame constructor by using the options `new DataFrame(yourData, yourColumns, {modules: [YourModule]}).
  • Pass Modules directly in DataFrame constructor is no more possible
  • Row index is now available in DataFrame .map, .filter, .chain thanks to @martinv13.
  • DataFrame.dropDuplicates now works on a subset of columns (new parameter), thanks to @martinv13.
  • DataFrame.sortBy can now sort rows by multiple columns thanks to @Jefftopia.
  • DataFrame.groupBy is now faster thanks to @rjrivero.
  • DataFrame can now be created from empty Array without throwing an error.
  • DataFrame column inference during creation is faster.
  • Other minor optimizations.
  • Updating dev dependencies.
  • Adding prettier in dev.

v1.2.8

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Resolve stat.max issue with negative values. See . Closes #46

v1.2.7

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Row.set and Row.delete now changes DataFrame schema. See
  • Fixing d3-requests to avoid build error. See

v1.2.6

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Removing the file /lib/modules/sql.js (present due to a bug of npm run build).
  • The code doesn't need es7-checktypes anymore.

v1.2.5

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

v1.2.4

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Debugging SQL module in order to handle correctly IN operator.
  • Adding validation on SQL module table names. Spaces, tabs, ... are not valid anymore.
  • Debugging SQL module in order to work properly with column names having spaces...
  • Adding tests on SQL module.
  • Debugging file import (JSON, CSVs) unit tests (promises were bugged in the test).
  • Adding a FileNotFoundError.
  • Wrong file paths or relative paths are now correctly catched and throw an FileNotFoundError.
  • Refactoring file imports.
  • Adding yarn documentation in the README.
  • Adding DataFrame.fromDSV (alias of fromText, to be more precise).
  • Adding DataFrame.fromPSV.
  • Adding DataFrame.fromTSV.
  • Now using d3.format to handle DataFrame.toDSV, DataFrame.toText, DataFrame.toCSV...
  • Adding DataFrame.toDSV (alias of toText, to be more precise).
  • Adding DataFrame.toPSV.
  • Adding DataFrame.toTSV.
  • Adding tests on different file formats.
  • Catching strange behaviour of csv loading in nodejs 0.10.0 and 0.12.0.

v1.2.3

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • A critical performance issue related to GroupedDataFrame is now resolved. Related to #21. GroupedDataFrame, DataFrame.groupBy, DataFrame.join(s), DataFrame.diff, DataFrame.dropDuplicates are now 10000 x faster than previously. See below for the detail:
    • Removing shitty combine function which was the cause of the performance issue.
    • Adding a Row.hash generating the hash id for a row.
    • Modifying GroupedDataFrame._groupBy to resolve the performance issue.
  • Error messages are now displayed correctly.
  • NoSuchColumnError is now correctly typed (not TypeError) but simply an Error.
  • DataFrame Errors are now exported in the Errors module.
  • Updating es7-checktypes-decorator to 0.2.1 for the same purpose.
  • Better Error handling on missing or wrong parameters.
  • Using custom webpack.optimize.UglifyJsPlugin in webpack.config.js instead of webpack -p.
  • Adding option keep_fnames on uglify (see above) to repair checktypes decorator after minification. Related to #21 and #23.
  • Adding check-node-version --node '>= 4' before npm run lint to avoid CI fails on old node versions. Indeed, eslint doesn't support node < 4 anymore.
  • Refactor on npm scripts.

v1.2.2

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Bugfix on join methods. They have now a correct behaviour. Thanks to @PaulMest
  • .outerJoin had a wrong behaviour. It would show the difference between dataframes. .outerJoin is now an alias for .fullJoin. The old behaviour can now be found in .diff.
  • Tests on join methods are now splitted into a single file dataframe_join-test.js. In the future, each test will be splitted by category of functions.

v1.2.1

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Modify gitbook and link in npm.

v1.2.0

Author: Guillaume Mousnier.

Type: Feature

Changes:

  • Adding .pivot().
  • Adding .melt().
  • Better umd code compression.
  • Cleaning the repo.
  • The documentation is now under gitbook.

v1.1.5

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Replacing fs writeFile by writeFileSync.

v1.1.4

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Contributing.

v1.1.3

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Adding code coverage.

v1.1.2

Author: Guillaume Mousnier. Thanks to @lmeyerov

Type: Hotfix

Changes:

  • Deleting withespaces removal in DataFrame. #14.
  • Fixing withespaces bugs in SQL. #14.
  • Fixing DataFrame.union() bug when columns aren't in the same order. #15.

v1.1.1

Author: Guillaume Mousnier.

Type: Feature

Changes:

  • Fixing a doc issue related to #13.

v1.1.0

Author: Guillaume Mousnier.

Type: Feature

Changes:

  • (Optional) Adding a support for .fromCSV, .fromText, .fromJSON to use browser File object.

v1.0.2

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Try catching the fs module for browsers.

v1.0.0

Author: Guillaume Mousnier

Type: Major Release

Changes:

  • Adding the sql module. Related to the issue #5.
  • Adding a GroupedDataFrame object (obtained when group by) with aggregates. Related to the issue #8.
  • DataFrame.groupBy aggregates now returns a DataFrame with an aggregation column. Related to the issue #8. /!\ Incompatible with older versions.
  • DataFrame.groupBy can be used on multiple columns. ex: df.groupBy('col1', 'col2'). Related to the issues #4 and #8.
  • Adding DataFrame.renameAll() to rename each columns of the DataFrame (current .rename()). Related to issue #12.
  • Changing DataFrame.rename() which now renames only one column (see .renameAll()). Related to issue #12. /!\ Incompatible with older versions.
  • Changing DataFrame.matrix.isCommutative() which now receives DataFrame as parameter and not an Array, in order to be more consistant with all the API. /!\ Incompatible with older versions.
  • Adding an optional parameter for DataFrame.toArray(), columnName, allowing to return only one column as Array. Related to issue #11.
  • Adding DataFrame.toCollection(), to return the DataFrame as a collection of dictionnaries (object). Related to issue #9.
  • Adding an optional parameter to DataFrame.toJSON(asCollection) to build a JSON object containing a collection of Object.
  • Adding DataFrame.stat.sum() in the stat module. Related to issue #10.
  • Adding static DataFrame.fromCSV(), .fromText() and .fromJSON() method, allowing to create a DataFrame (via a Promise) from files (path or url).
  • Adding DataFrame.dropDuplicates() which removes duplicated rows.
  • DataFrame.randomSplit() is renamed in DataFrame.bisect(). /!\ Incompatible with older versions.
  • Debbugging DataFrame.show(). Related to the issue #7.
  • Debbugging DataFrame.sortBy(). Now, it returns an error when applied on a mixed type column. Related to the issues #3 and #6.
  • Debbugging DataFrame.sortBy() when used with string.
  • DataFrame.distinct() now throw correctly NoSuchColumnError when passing an incorrect columnName.
  • Adding Error messages on Row, DataFrame, GroupedDataFrame and modules...
  • join methods are completely revisited, providing a result near from sql. Moreover you can join on multiple columns.
  • DataFrame.replace() columnNames arguments are now passed as String (for a single column) or in Array (for multiple ones).
  • DataFrame.transpose() has now an optional argument, transposeColumnNames which place columnNames as rowNames.
  • Adding unit tests to cover more cases.
  • Unit tests are now realized on es5 compiled version.
  • Clarifying error messages.
  • Adding @checktypes (see es7-checktypes-decorator) to handle wrong arguments types.
  • Removing InputTypeError, now replaced by @checktypes. /!\ Incompatible with older versions.

v0.2.9

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Fixing issue #2.
  • Defined as first real stable version.

v0.2.7

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Updating keywords and presentation.

v0.2.6

Author: Guillaume Mousnier.

Type: Hotfix

Changes:

  • Just some docs.

v0.2.5

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Correcting commonjs lib.

v0.2.4

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Correcting (maybe more an alternative) for babel related static method error.
  • Adding webpack to compile browser version.

v0.2.3

Author: Guillaume Mousnier

Type: Hotfix

Changes:

v0.2.2

Author: Guillaume Mousnier

Type: Hotfix

Changes:

  • Removing jquery in dependencies.

v0.2.1

Author: Guillaume Mousnier

Type: Feature

Changes:

  • First functional version.

v0.1.0

Author: Guillaume Mousnier

Type: Feature

Changes:

  • Init the repo.

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