grizzly_series 0.0.23-dev

  • README.md
  • CHANGELOG.md
  • Installing
  • Versions
  • 46

Grizzly Series

Pandas-like Series and DataFrames for Dart

Usage

A simple usage example:

main() {
  final ages =
      new IntSeries<String>([20, 22, 35], indices: ['Jon', 'Dany', 'Tyrion']);
  final house = new StringSeries<String>(['Stark', 'Targaryan', 'Lannister'],
      indices: ['Jon', 'Dany', 'Tyrion']);

  final df = new DataFrame<String, String>(
      {'age': ages.data, 'house': house.data},
      indices: ages.indices);

  print(df['age']);
  print(df.index['Jon']);
  print(df.pos[2]);
}

TODO

[ ] Series [ ] DataFrame [ ] Plotting [ ] Loading data [ ] Numpy functionality [ ] Interactive web interface [ ] Statistical functions

Changelog

0.0.23

  • Stripped Pair, IntPair, Extent, Index, Index1D, Index2D into its own package grizzly_primitives

0.0.22

  • Bug fix: aRow constructor for 2D arrays
  • Renamed genColumns, aColumn and buildColumns to be concise

0.0.21

  • double2D to create 2D double arrays
  • Flexible int2D and array2D

0.0.20

  • Bug fixes for dot method on Array2D

0.0.19

  • Unary minus operator for arrays

0.0.18

  • exp for arrays

0.0.17

  • log, log10, logN for arrays

0.0.16

  • Fixed dot for Array2D

0.0.15

  • assign method on arrays

0.0.14

  • Convenient constructors on arrays

0.0.13

  • String 1d and 2d arrays

0.0.12

  • allTrue, allFalse, anyTrue, anyFalse methods on bool arrays

0.0.11

  • bool 1d and 2d arrays
  • isAllClose for double 1d and 2D arrays

0.0.10

  • view and fixed bug fixes
  • Flexible array creator convenient methods

0.0.9

  • Correlation and covariance methods on arrays
  • Generation based constructor for Array1D
  • Convenient methods for creation of Arrays

0.0.8

  • valueCounts for Array and Array2D

0.0.7

  • Introduced row and col accessors in Array2D
  • Row and column based numerical methods
  • Added cool constructors and static constructor methods to Int2D and Double2D
  • Implemented class hierarchy for Array2DView -> Array2DFix -> Array2D

0.0.6

Breaking

  • Made Array2D row major

0.0.5

  • Slicing of Array, Array2D

0.0.4

  • Read-only views and fixed size for Array

0.0.3

  • Mathematical operations for NumericSeries

0.0.2

  • Array, IntArray, DoubleArray
  • Extent, Pair, IntPair
  • pairByLabel, pairByPos, enumerate and enumerateSliced methods for Series

0.0.1

  • Half functional DataFrame, Series, Array

1. Depend on it

Add this to your package's pubspec.yaml file:


dependencies:
  grizzly_series: "^0.0.23-dev"

2. Install it

You can install packages from the command line:

with pub:


$ pub get

Alternatively, your editor might support pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:


import 'package:grizzly_series/grizzly_series.dart';
        
Version Uploaded Documentation Archive
0.0.23-dev Oct 29, 2017 Go to the documentation of grizzly_series 0.0.23-dev Download grizzly_series 0.0.23-dev archive
0.0.22-dev Oct 28, 2017 Go to the documentation of grizzly_series 0.0.22-dev Download grizzly_series 0.0.22-dev archive
0.0.21-dev Oct 28, 2017 Go to the documentation of grizzly_series 0.0.21-dev Download grizzly_series 0.0.21-dev archive
0.0.20-dev Oct 27, 2017 Go to the documentation of grizzly_series 0.0.20-dev Download grizzly_series 0.0.20-dev archive
0.0.19-dev Oct 27, 2017 Go to the documentation of grizzly_series 0.0.19-dev Download grizzly_series 0.0.19-dev archive
0.0.18-dev Oct 27, 2017 Go to the documentation of grizzly_series 0.0.18-dev Download grizzly_series 0.0.18-dev archive
0.0.17-dev Oct 27, 2017 Go to the documentation of grizzly_series 0.0.17-dev Download grizzly_series 0.0.17-dev archive
0.0.16-dev Oct 24, 2017 Go to the documentation of grizzly_series 0.0.16-dev Download grizzly_series 0.0.16-dev archive
0.0.15-dev Oct 24, 2017 Go to the documentation of grizzly_series 0.0.15-dev Download grizzly_series 0.0.15-dev archive
0.0.14-dev Oct 23, 2017 Go to the documentation of grizzly_series 0.0.14-dev Download grizzly_series 0.0.14-dev archive

All 21 versions...

Analysis

This feature is new.
We welcome feedback.
More details: scoring.

We analyzed this package, and provided a score, details, and suggestions below.

  • tool failures on Feb 16, 2018
  • Dart: 2.0.0-dev.20.0
  • pana: 0.10.1

Scores

Popularity:
Describes how popular the package is relative to other packages. [more]
27 / 100
Health:
Code health derived from static analysis. [more]
63 / 100
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
67 / 100
Overall score:
Weighted score of the above. [more]
46

Platforms

Detected platforms: unsure

Error(s) prevent platform classification.

Suggestions

  • Fix lib/src/array2d/string/string_array2d.dart.

    Strong-mode analysis of lib/src/array2d/string/string_array2d.dart failed with the following error:

    line: 4 col: 24
    The name 'Array' isn't a type so it can't be used as a type argument.

  • Fix lib/src/array2d/string/string_view_array2d.dart.

    Strong-mode analysis of lib/src/array2d/string/string_view_array2d.dart failed with the following error:

    line: 4 col: 24
    The name 'ArrayView' isn't a type so it can't be used as a type argument.

  • Fix further 18 Dart files.

    Similar analysis of the following files failed:

    • lib/src/array2d/string/string_fix_array2d.dart
    • lib/src/array2d/numeric.dart
    • lib/src/array2d/bool/bool_array2d.dart
    • lib/src/array2d/bool/bool_view_array2d.dart
    • lib/src/array2d/bool/bool_fix_array2d.dart
    • lib/src/array2d/array2d.dart
    • lib/src/array2d/int/int_view_array2d.dart
    • lib/src/array2d/int/int_array2d.dart
    • lib/src/array2d/int/int_fix_array2d.dart
    • lib/src/array2d/double/double_fix_array2d.dart
    • lib/src/array2d/double/double_array2d.dart
    • lib/src/array2d/double/double_view_array2d.dart
    • lib/src/data_frame/data_frame.dart
    • lib/src/array/numeric.dart
    • lib/src/array/array.dart
    • lib/src/array/int/int_view_array.dart
    • lib/src/array/double/double_view_array.dart
    • lib/grizzly_series.dart
  • Fix platform conflicts.

    Make sure none of the libraries use mutually exclusive dependendencies.

  • Fix issues reported by dartanalyzer.

    dartanalyzer reported 3 error(s) and 0 warning(s).

  • Package is pre-release.

    Pre-release versions should be used with caution, their API may change in breaking ways.

  • Package is pre-v1 release.

    While there is nothing inherently wrong with versions of 0.*.*, it usually means that the author is still experimenting with the general direction API.

  • Maintain an example.

    None of the files in your example/ directory matches a known example patterns. Common file name patterns include: main.dart, example.dart or you could also use grizzly_series.dart.

Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=1.20.1 <2.0.0
grizzly_primitives ^0.0.1 0.0.9 0.1.0
grizzly_scales ^0.0.3-dev 0.0.3-dev
Transitive dependencies
meta 1.1.2
Dev dependencies
test ^0.12.0