public static List<Double> getLinearRegression(List<Double> list) { List<Double> regression; PolynomialApproximator approximator = new PolynomialApproximator(); regression = approximator.getApproxSignal(list, 1); list.forEach(e -> System.out.printf("%.1f", e)); regression.forEach(e -> System.out.printf("%.1f", e)); if (viewGraph) { viewGraph(list, regression); } return regression; }