Example usage for org.apache.commons.math.analysis.interpolation LoessInterpolator smooth

Introduction

In this page you can find the example usage for org.apache.commons.math.analysis.interpolation LoessInterpolator smooth.

Prototype

public final double[] smooth(final double[] xval, final double[] yval) throws MathException 

Source Link

Document

Compute a loess fit on the data at the original abscissae.

Usage

From source file:guineu.modules.filter.Alignment.SerumHuNormalization.SerumHuNormalizationTask.java

private PolynomialSplineFunction createCurve() {
    try {/*  w w w .j av a2 s  . co m*/
        // if there are more than 2 points in the model
        LoessInterpolator loess = null;
        if (this.loessBandwidth == 0 && this.iterations == 0) {
            loess = new LoessInterpolator();
        } else {
            loess = new LoessInterpolator(this.loessBandwidth, this.iterations);
        }
        double[] newy = loess.smooth(xval, yval);
        PolynomialSplineFunction function = loess.interpolate(xval, newy);
        return function;

    } catch (MathException ex) {
        Logger.getLogger(SerumHuNormalizationTask.class.getName()).log(Level.SEVERE, null, ex);

        SplineInterpolator loess = new SplineInterpolator();
        PolynomialSplineFunction function = loess.interpolate(xval, yval);
        return function;

    }
}

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