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Provide tool to go from 1D to 2D array format #11

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lessthanoptimal opened this issue Feb 10, 2016 · 1 comment

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lessthanoptimal commented Feb 10, 2016

Provide tool to go from 1D to 2D array format

mroodschild commented Jun 3, 2017 •

edited

Hello!
mayby this can help

public double[][] toArray(SimpleMatrix matrix) {
        double array[][] = new double[matrix.numRows()][matrix.numCols()];
        for (int r = 0; r < matrix.numRows(); r++) {
            array[r] = matrix.extractVector(true, r).getMatrix().getData();
        }
        return array;
}

or at DenseMatrix64F

    public double[][] getData() {
        int count = 0;
        double[][] array = new double[this.numRows][this.numCols];
        for (int i = 0; i < this.numRows; i++) {
            for (int j = 0; j < this.numCols; j++) {
                array[i][j] = this.data[count++];
            }
        }
        return array;
    }

Regards

lessthanoptimal added the enhancement label

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