dartframe 0.5.1

DartFrame is a Dart library inspired by Geo-(Pandas), simplifying structured data handling (tables, CSVs, JSON) with function tools for filtering, transforming, and analysis.

0.5.1

• [IMPROVEMENT] Cleaned code
• [IMPROVEMENT] Added documentation strings to functions and classes
• [FIX] Moved all experiments to new branch
• [IMPROVEMENT] Updated README and improved documentation
• [FEATURE] Add quantile calculation with tests for edge cases

0.5.0

• [IMPROVEMENT] Reorganize codebase into discrete libraries and update dependencies
• [IMPROVEMENT] Restructure into separate library with parts
• [IMPROVEMENT] Cleaned code base
• [IMPROVEMENT] Refactor(utils): make functions public and remove main test
• [IMPROVEMENT] Chore(dependencies): update intl and geoxml versions

0.4.5

• [Fix] fix formatting and indentation in multiple files

0.4.4

• [Fix] Refactor(geo_series): rename snake_case methods to camelCase for consistency

0.4.3

• [Fix] Formatted files.
• [IMPROVEMENT] Reorganize test files into dataframe_series directory
• [IMPROVEMENT] Rename geoJSONToGEOS to GeoJSONToGEOS for consistency fix(geo_series)
• [IMPROVEMENT] Specify Series return type for isEmpty getter chore(dartframe)
• [IMPROVEMENT] Add dart:ffi import and include src/utils/lists.dart fix(series)
• [IMPROVEMENT] Change default errors parameter to 'ignore' in toNumeric refactor(string_accessor)
• [IMPROVEMENT] Improve split pattern handling with n parameter

0.4.2

• [Fix] Formatted files.

0.4.1

• [Fix] Fixed readme.

0.4.0

• [FEATURE] Added main library file lib/dartframe.dart exporting library parts and initializing fileIO.
• [FEATURE] Implemented DataFrameILocAccessor and DataFrameLocAccessor in lib/src/dart_frame/accessors.dart for integer and label-based data selection in DataFrames.
• [FEATURE] Implemented core DataFrame class in lib/src/dart_frame/dart_frame.dart with constructors, data cleaning, accessors, and string representation.
• [FEATURE] Added extensive DataFrame manipulation functions in lib/src/dart_frame/functions.dart (selection, filtering, sorting, stats, transformations, I/O, grouping).
• [FEATURE] Implemented DataFrame operator overloads ([], []=) in lib/src/dart_frame/operations.dart.
• [FEATURE] Added file I/O abstraction (FileIOBase) with platform-specific implementations in lib/src/file_helper/.
• [FEATURE] Implemented core Series class in lib/src/series/ for 1D arrays, with constructors, operators, statistical functions, string accessor, and date/time conversions.
• [DOCS] Added markdown documentation for DataFrame, GeoDataFrame, GeoSeries, and Series classes in docs/.
• [DOCS] Added example/example.dart demonstrating DataFrame and Series usage.
• [DOCS] Added example/geodataframe_example.dart demonstrating GeoDataFrame usage.
• [DOCS] Added example/geoseries.dart demonstrating GeoSeries usage.
• [MISC] Added output.geojson example output file.
• [TEST] Added a suite of unit tests in test/ covering DataFrame and Series functionalities.
• [DOCS] Added bin/dartframe.dart as a simple executable example.

0.3.4

• [Fixed] Doc Strings.
• [IMPROVEMENT] Improved dart format.

0.3.3

• [Fixed] Doc Strings.

0.3.2

• [IMPROVEMENT] Migrated to WASM.

0.3.1

• [Fix] Fixed readme.

0.3.0

• [Fix] Fixed readme.
• [FEATURE] Added more properties
• [FIX] Fixed DataFrame constructor to create modifiable column lists, allowing column addition after initialization
• [FIX] Updated Series toString() method to properly display custom indices
• [FEATURE] Added GeoSeries class for spatial data analysis
• [FEATURE] Added GeoSeries.fromXY() factory constructor to create point geometries from x, y coordinates
• [FEATURE] Added GeoSeries.fromWKT() factory constructor to create geometries from WKT strings
• [FEATURE] Added GeoSeries.fromFeatureCollection() factory constructor to create geometries from GeoJSON
• [FEATURE] Added spatial analysis methods to GeoSeries:
  • getCoordinates() - extracts coordinates as a DataFrame
  • countCoordinates - counts coordinate pairs in each geometry
  • countGeometries - counts geometries in multi-part geometries
  • countInteriorRings - counts interior rings in polygonal geometries
  • isClosed - checks if LineStrings are closed
  • isEmpty - checks if geometries are empty
  • isRing - checks if features are rings
  • isValid - validates geometry structures
  • hasZ - checks for 3D coordinates
  • bounds - gets bounding boxes for geometries
  • totalBounds - gets overall bounds of all geometries
  • centroid - calculates centroids of geometries
  • type - gets geometry types
  • area - calculates areas of polygonal geometries
  • lengths - calculates lengths of linear geometries
  • isCCW - checks if rings are counterclockwise
  • contains - checks spatial containment relationships
• [IMPROVEMENT] Enhanced Series class to support custom indices similar to DataFrame
• [IMPROVEMENT] Renamed DataFrame's rowHeader to index for consistency with pandas API
• [IMPROVEMENT] Updated DataFrame constructor to accept index parameter

0.2.2

• [Fix] Fixed readme.
• [FEATURE] Added topics to the package/library

0.2.1

• [Fix] Fixed readme.

0.2.0

• [FEATURE] Added isEmpty and isNotEmpty properties to check if DataFrame has rows
• [FEATURE] Added copy() method to create deep copies of DataFrames
• [FEATURE] Added dimension properties: rowCount, columnCount, and shape
• [FEATURE] Added dtypes property to get column data types
• [FEATURE] Added hasColumn() method to check for column existence
• [FEATURE] Added unique() method to get DataFrame with only unique rows
• [FEATURE] Added unique() method to Series to get unique values
• [FEATURE] Added resetIndex() method for reindexing after filtering
• [FEATURE] Added conversion methods: toListOfMaps() and toMap()
• [FEATURE] Added sample() method for randomly sampling rows
• [FEATURE] Added applyToColumn() method for applying functions to column elements
• [FEATURE] Added applyToRows() method for applying functions to each row
• [FEATURE] Added corr() method for computing correlation coefficients
• [FEATURE] Added bin() method for creating bins from continuous data
• [FEATURE] Added toCsv() method for converting DataFrame to CSV string
• [FEATURE] Added pivot() method for creating pivot tables
• [FEATURE] Added melt() method for reshaping data from wide to long format
• [FEATURE] Added join() method for combining DataFrames
• [IMPROVEMENT] Enhanced fillna() method with strategies (mean, median, mode, forward, backward)
• [FEATURE] Added dropna() method to remove rows or columns with missing values
• [IMPROVEMENT] Improved replace() method with regex support and column targeting
• [FEATURE] Added replaceInPlace() method for in-place value replacement
• [FEATURE] Added astype() method to convert column data types
• [FEATURE] Added round() method to round numeric values to specified precision
• [FEATURE] Added rolling() method for computing rolling window calculations
• [FEATURE] Added cumulative() method for cumulative calculations (sum, product, min, max)
• [FEATURE] Added quantile() method to compute quantiles over a column
• [FEATURE] Added rank() method to compute numerical rank along a column
• [FEATURE] Added abs() method to Series for calculating absolute values
• [FEATURE] Added copy() method to Series for creating copies
• [FEATURE] Added cummax() method to Series for cumulative maximum calculations
• [FEATURE] Added cummin() method to Series for cumulative minimum calculations
• [FEATURE] Added cumprod() method to Series for cumulative product calculations
• [IMPROVEMENT] Enhanced cumsum() method in Series with skipna parameter
• [FEATURE] Added GeoDataFrame class for handling geospatial data
• [Fix] Fixed the ability to modify individual elements in DataFrame using df['column'][index] = value syntax
• [FIX] Improved row header display in toString() method to properly handle headers of varying lengths

0.1.3

• [IMPROVEMENT] Fixed Readme not showing the right status
• [FEATURE] Added unit tests
• [FEATURE] Added row header names/index

0.1.2

• Fixed description to match dart packaging

0.1.1

• Fixed description.

0.1.0

• Initial version.