mat.maxElementInEachColumn()
⬆️ 需要: mat.transpose()
// ⬆️ 需要: matrix.transpose()
import matrix_transpose from '../mixin/matrix_transpose.mjs';
Object.assign(Array.prototype, matrix_transpose);
/**
* find max element in each column
* @example
* import matrix_maxElementInEachColumn from './matrix_maxElementInEachColumn.mjs';
* Object.assign(Array.prototype, matrix_maxElementInEachColumn);
*/
const matrix_maxElementInEachColumn = {
/**
* find max element in each column
* @example
* let m = [[1, 5, 2],[2, 6],[3, 4, 5]]
* m.maxElementInEachColumn() // [ 3, 6, 5 ]
* @return {[number]}
*/
maxElementInEachColumn() {
return this
.transpose() // see matrix in cols
.map(col => Math.max(...col.removeUndefined())) // max element in each col
},
};
export default matrix_maxElementInEachColumn;
import matrix_maxElementInEachColumn from '../objects/mixin/matrix_maxElementInEachColumn.mjs';
Object.assign(Array.prototype, matrix_maxElementInEachColumn);
let m = [[1, 5, 2], [2, 6], [3, 4, 5]];
m.maxElementInEachColumn(), // [ 3, 6, 5 ]
JSDoc ⟩ @requires
Last updated