All Versions
14
Latest Version
Avg Release Cycle
159 days
Latest Release
1151 days ago

Changelog History
Page 1

  • v0.12.0 Changes

    October 10, 2021

    ➕ Added in 0.12.0

    • ➕ Add dataframe.GetGroups (@arjunmahishi)
    • ➕ Add Series.Slice (@jfussion)
    • ➕ Add csv lazy quote (@fredericlemoine)

    🔄 Changed in 0.12.0

    • 🗄 series.Err is deprecated; use Error() instead
    • 🗄 dataframe.Err is deprecated; use Error() instead

    🛠 Fixed in 0.12.0

    • 🛠 Fix dataframe.GroupBy issue (@prliu)
    • making series Order stable (@mcolosimo-p4)

  • v0.11.0 Changes

    June 27, 2021

    ➕ Added in 0.11.0

    • Rolling window Mean and StdDev
    • GroupBy and Aggregate
    • Numeric column index
    • Read HTML tables
    • extra checks for TravisCI
    • Combining filters with AND
    • 👉 User-defined filters
    • Concatination of Dataframes

    🔄 Changed in 0.11.0

    • 👉 Make fixColnames faster
    • 👉 Use Go 1.16
    • ⚡️ Update dependencies

    🛠 Fixed in 0.11.0

    • 👕 Linter issues
    • ✅ Failing tests

  • v0.10.1 Changes

    November 08, 2019

    🛠 Fixed in 0.10.1

    • 🖨 LoadRecords printing type debug information
    • Missing closing brackets in series.go
    • 🛠 Fix gonum import path in dataframe_test

  • v0.10.0 Changes

    November 08, 2019

    🔄 Changed in 0.10.0

    • 🔀 Merged dev branch changes from multiple collaborators (Sam Zaydel, Kyle Ellrott, Daniela Petruzalek, Christoph Laaber).

  • v0.9.0 Changes

    October 03, 2017

    ➕ Added in 0.9.0

    • ➕ Additional method to load arbitrary struct slices to DataFrames (Juan Álvarez)
    • 🆕 New LoadOption Names to set initial column names (Sander van Harmelen).
    • 📜 Parser option for csv delimiter (Kyle Ellrott)
    • 🆕 New Describe method for reporting summary statistics (Daniela Petruzalek)

    🔄 Changed in 0.9.0

    • 👌 Improve the performance of multiple operations.
    • 👍 Code cleanup for better consistency (Sander van Harmelen)
    • 📇 Renamed 'Deselect' function to 'Drop' (Ben Marshall)

  • v0.8.0 Changes

    December 12, 2016

    ➕ Added in 0.8.0

    • ✅ Series.Order method and tests.
    • ✅ Series.IsNaN method and tests.
    • ✅ DataFrame.Arrange method and tests.
    • ✅ DataFrame.Capply method and tests.
    • ✅ DataFrame.Rapply method and tests.
    • Benchmarks for several operations on both the series and dataframe packages.
    • 🐎 Many optimizations that increase the performance dramatically.
    • 🆕 New LoadOption where the elements to be parsed as NaN from string can be selected.
    • Gota can now return an implementation of gonum/mat64.Matrix interface via DataFrame.Matrix() and load a mat64.Matrix via dataframe.LoadMatrix().

    🔄 Changed in 0.8.0

    • elementInterface is now exported as Element.
    • Split element.go into separate files for the implementations of the Element interface.
    • 📚 LoadOptions API has been renamed for better documentation via godoc.
    • Series.Set and DataFrame.Set now modify the structure in place for performance considerations. If one wants to use the old behaviour, it is suggested to use DataFrame.Copy().Set(...) instead of DataFrame.Set(...).
    • DataFrame.Dim has been changed to DataFrame.Dims for consistency with the mat64.Matrix interface.
    • 🖨 When printing a large DataFrame now the behaviour of the stringer interface is much nicer, showing only the first 10 rows and limiting the number of characters that can be shown by line

    ✂ Removed in 0.8.0

    • Some unused functions from the helpers.go file.

    🛠 Fix in 0.8.0

    • 👕 Linter errors.
    • stringElement.Float now returns NaN instead of 0 when applicable.
    • Autorenaming column names when hasHeaders == false now is consistent with the autorename used with dataframe.New
    • 🐛 Bug where duplicated column names were not been assigned consecutive suffix numbers if the number of duplicates was greater than two.

  • v0.7.0 Changes

    November 27, 2016

    ➕ Added in 0.7.0

    • ✅ Many more table tests for both series and dataframe
    • Set method for Series and DataFrame
    • When loading data from CSV, JSON, or Records, different LoadOptions can now be configured. This includes assigning a default type, manually specifying the column types and others.
    • 📚 More documentation for previously undocumented functions.

    🔄 Changed in 0.7.0

    • The project has been restructured on separated dataframe and series packages.
    • 💅 Reviewed entire Series codebase for better style and maintainability.
    • DataFrame.Select now accepts several types of indexes
    • Error messages are now more consistent.
    • The standard way of checking for errors on both series and dataframe is to check the Err field on each structure.
    • ReadCSV/ReadJSON and WriteCSV/WriteJSON now accept io.Reader and io.Writer respectively.
    • ⚡️ Updated README with the new changes.

    ✂ Removed in 0.7.0

    • ✂ Removed unnecessary abstraction layer on Series.elements

  • v0.6.0 Changes

    October 29, 2016

    ➕ Added in 0.6.0

    • InnerJoin, CrossJoin, RightJoin, LeftJoin, OuterJoin functions

    🔄 Changed in 0.6.0

    • 🔨 More code refactoring for easier maintenance and management
    • ➕ Add more documentation to the exported functions
    • ✂ Remove unnecessary methods and structures from the exported API

    ✂ Removed in 0.6.0

    • colnames and coltypes from the DataFrame structure

  • v0.5.0 Changes

    August 09, 2016

    ➕ Added in 0.5.0

    • Read and write DataFrames from CSV, JSON, []map[string]interface{}, [][]string.
    • 🆕 New constructor for DataFrame accept Series and NamedSeries as arguments.
    • Subset, Select, Rename, Mutate, Filter, RBind and CBind methods
    • 👍 Much Better error handling

    🔄 Changed in 0.5.0

    • Almost complete rewrite of DataFrame code.
    • 🏗 Now using Series as first class citizens and building blocks for DataFrames.

    ✂ Removed in 0.5.0

    • 🔀 Merge/Join functions have been temporarily removed to be adapted to the new architecture.
    • Cell interface for allowing custom types into the system.

  • v0.4.0 Changes

    February 26, 2016

    ➕ Added in 0.4.0

    • Getter methods for nrows and ncols.
    • 🔀 An InnerJoin function that performs an Inner Merge/Join of two DataFrames by the given keys.
    • An RightJoin and LeftJoin functions that performs outer right/outer left joins of two DataFrames by the given keys.
    • 🔀 A CrossJoin function that performs an Cross Merge/Join of two DataFrames.
    • Cell interface now have to implement the NA() method that will return a empty cell for the given type.
    • Cell interface now have to implement a Copy method.

    🔄 Changed in 0.4.0

    • The cell interface is now exported: Cell.
    • Cell method NA() is now IsNA().
    • 📜 The function parseColumn is now a method.
    • A number of fields and methods are now expoted.

    🛠 Fixed in 0.4.0

    • Now ensuring that generated subsets are in fact new copies entirely, not copying pointers to the same memory address.