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Bug fixes, enhancements and some API changes.
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@v0dro v0dro released this 31 Jan 12:24
· 150 commits to master since this release
v0.1.5
486bdee

This release introduces the following changes:

  • Major Enhancements
    • Add Daru::Vector#group_by (@lokeshh).
    • Add rspec-guard to run tests automatically (@lokeshh).
    • Remove Daru::DataFrame implicit Hash method since Dataframes are not implicit hashes and having an implicit converter can introduce unwanted side effects. (@gnilrets)
    • Add Daru::DataFrame#union. (Tim)
  • Minor Enhancements
    • Added a join indicator. (@gnilrets)
    • Support an enumerable value as an index of a vector. (Yuichiro Kaneko)
    • Add test case for NegativeDateOffset. (Yuichiro Kaneko)
    • Add test case for #on_offset?. (Yuichiro Kaneko)
    • NegativeDateOffset#- returns DateOffset. (Yuichiro Kaneko)
    • Make Vector#resort_index private because its only use was for internal usage in Vector#sort. (Yuichiro Kaneko)
    • Add DataFrame#order= method to reorder vectors in a dataframe. (@lokeshh)
    • Use Integer instead of Fixnum throughout the gem. (Yuichiro Kaneko)
    • Improve error message of Daru::Vector#index=. (@lokeshh)
    • Deprecate freqs and make frequencies return a Daru::Vector. (@lokeshh)
    • DataFrame#access_row with integer index. (Yusuke Sangenya)
    • Add method alias for comparison operator. (Yusuke Sangenya)
    • Update Nokogiri version. (Yusuke Sangenya)
    • Return Daru::Vector for multiple modal values for Daru::Vector#mode. (baarkerlounger)
  • Fixes
    • Fix many to one joins. The prior version was shifting values in the left dataframe before checking whether values in the right dataframe should be shifted. They both need to be checked at the same time before shifting either. (@gnilrets)
    • Support formatting empty dataframes. They were returning an error before. (@gnilrets)
    • method_missing in Daru::DataFrame would not detect the correct vector if it was a String. Fixed that. (@lokeshh)
    • Fix docs of contrast_code to specify that the default value is false. (@v0dro)
    • Fix occurence of SystemStackError due to faulty arguement passing to Array#values_at. (@v0dro)
    • Fix DataFrame#pivot_table regression that raised an ArgumentError if the :index option was not specified. (@zverok)
    • Fix DateFrame.rows to accept empty argument. (@zverok)
    • Fix bug with false values on dataframe create. DataFrame from an Array of hashes wasn't being created properly when some of the values were false. (@gnilrets)
    • Fix Vector#reorder! method. (Yusuke Sangenya)
    • Fix DataFrame#group_by for numeric indexes. (@zverok)
    • Make DataFrame#index= accept only Daru::Index. (Yusuke Sangenya)
    • DataFrame#vectors= now changes the name of vectors contained in the internal @data variable. (Yusuke Sangenya)
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