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How to use the ml-matrix.Matrix.diag function in ml-matrix

To help you get started, we’ve selected a few ml-matrix examples, based on popular ways it is used in public projects.

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mljs / pca / src / __tests__ / iris.js View on Github

it('X may be recomputed', function () {
    let U = pca.predict(iris);
    let V = pca.getLoadings();
    let S = pca.getEigenvalues();

    // we scale the scores
    let SU = U.divRowVector(S);
    // we recompute X
    let RX = SU.mmul(Matrix.diag(S)).mmul(V);
    expect(RX.get(0, 0)).toBeCloseTo(-0.89767388, 6);
  });