ml-matrix/src/views/rowSelection.js

Matrix manipulation and computation library

import { checkRowIndices } from '../util';

import BaseView from './base';

export default class MatrixRowSelectionView extends BaseView {
  constructor(matrix, rowIndices) {
    checkRowIndices(matrix, rowIndices);
    super(matrix, rowIndices.length, matrix.columns);
    this.rowIndices = rowIndices;
  }

  set(rowIndex, columnIndex, value) {
    this.matrix.set(this.rowIndices[rowIndex], columnIndex, value);
    return this;
  }

  get(rowIndex, columnIndex) {
    return this.matrix.get(this.rowIndices[rowIndex], columnIndex);
  }
}