nstatistics/stats/media.js

Solve equations using numerical methods, linear álgebra and solver of linear equation system

const { matrix } = require('lalgebra');

function media() {
    const unitData = matrix.create(this.ndata, 1, () => 1);
    const data = this.dataMatrix();
    return unitData.trans().x(data).x(1 / this.ndata).trans();
}
module.exports = function(cb) {
    const self = this;
    if (typeof cb !== 'function') return media.call(self);
    return new Promise((full, rej) => {
        try {
            full(cb.call(self, null, media.call(self)));
        } catch (e) {
            rej(cb.call(self, e, null));
        }
    });
};