matrix_utils 0.0.1

matrix_utils: ^0.0.1 copied to clipboard

example/example.dart

import 'package:matrix_utils/matrix_utils.dart';

void main() {
  Matrix m = Matrix([
    [1, 2],
    [1, 2]
  ]);

  // Shape
  print(m.shape);

  // flatten
  print(m.flatten());

  // transpose
  print(m.transpose());

  // addition
  var add = Matrix([
        [1, 1],
        [1, 1]
      ]) +
      Matrix([
        [2, 2],
        [2, 2]
      ]);
  print(add);

  // subtration
  var sub = [
        [1, 1],
        [1, 1]
      ].toMatrix() -
      [
        [2, 2],
        [2, 2]
      ].toMatrix();
  print(sub);

  // division

  var div = Matrix([
    [1, 1],
    [1, 1]
  ]).elementDivide(Matrix([
    [2, 0],
    [2, 2]
  ]));
  print(div);

  // dot operation

  var dot = [
    [1, 2],
    [3, 4]
  ].toMatrix().dot([
        [11, 12],
        [13, 14]
      ].toMatrix());
  print(dot);

  // arange

  var arange = Matrix.range(10);
  print(arange);

  // zeros

  var zeros = Matrix.zeros(2, 2);
  print(zeros);

  //ones

  var ones = Matrix.ones(3, 3);
  print(ones);

  //sum

  var sum = [
    [2, 2],
    [2, 2]
  ];
  print(sum.sum);

  // reshape
  var array = [
    [0, 1, 2, 3, 4, 5, 6, 7]
  ];
  print(array.reshape(4, 2));

  // linspace
  var linspace = Matrix.linspace(2, 3, 5);
  print(linspace);

  // diagonal
  var arr = [
    [1, 1, 1],
    [2, 2, 2],
    [3, 3, 3]
  ];
  print(arr.diagonal);

  //fill
  var fill = Matrix.fill(3, 3, 'matrix');
  print(fill);

  // compare object
  var compare = Matrix.compare(m, '>=', 2);
  print(compare);

  // concatenate

  // axis 0
  var l1 = Matrix([
    [1, 1, 1],
    [1, 1, 1],
    [1, 1, 1]
  ]);
  var l2 = Matrix([
    [0, 0, 0],
    [0, 0, 0],
    [0, 0, 0],
    [0, 0, 0],
  ]);
  var l3 = Matrix().concatenate([l1, l2]);
  print(l3);

  // axis 1
  var a1 = Matrix([
    [1, 1, 1, 1],
    [1, 1, 1, 1],
    [1, 1, 1, 1]
  ]);
  var a2 = Matrix([
    [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
  ]);

  var a3 = Matrix().concatenate([a2, a1], axis: 1);
  print(a3);
  a3 = a2.concatenate([a1], axis: 1);
  print(a3);

  // slice
  var sliceArray = Matrix([
    [1, 2, 3, 4, 5],
    [6, 7, 8, 9, 10],
    [6, 7, 8, 9, 10]
  ]);

  var newArray = sliceArray.slice(0, 2, 1, 4);
  print(" sliced array: ${newArray}");

  // min max
  var numbers = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
  ];
  print(numbers.min());
  print(numbers.min(axis: 1));
  print(numbers.min(axis: 0));
  print(numbers.max());
  print(numbers.max(axis: 1));
  print(numbers.max(axis: 0));
}