/// <summary>
/// 提取观测量的权逆阵。是否只提取对角阵？？
/// </summary>
/// <param name="fileA"></param>
/// <param name="fileB"></param>
/// <returns></returns>
public static double[][] GetCovaMatrixOfObs(SinexFile fileA, SinexFile fileB)
{
int paramCountA = fileA.EstimateParamCount;
int row = paramCountA + fileB.EstimateParamCount;
double[][] array = MatrixUtil.Create(row);
//fileA直接设置。
//这里应该定权！
SinexStatistic statisticA = fileA.GetStatistic();
SinexStatistic statisticB = fileB.GetStatistic();
SinexStatistic statisticNew = SinexStatistic.Merge(statisticA, statisticB);
double varFactorA = statisticNew.VarianceOfUnitWeight / statisticA.VarianceOfUnitWeight;
double varFactorB = statisticNew.VarianceOfUnitWeight / statisticB.VarianceOfUnitWeight;
double[][] matrixA = fileA.GetEstimateCovaMatrix();
double[][] matrixB = fileB.GetEstimateCovaMatrix();
MatrixUtil.Multiply(matrixA, varFactorA);
MatrixUtil.Multiply(matrixB, varFactorB);
MatrixUtil.SetSubMatrix(array, matrixA);
MatrixUtil.SetSubMatrix(array, matrixB, paramCountA, paramCountA);
return(array);
}
private void button_exportEstimateLCova_Click(object sender, EventArgs e)
{
if (!file.HasEstimateCovaMatrix)
{
MessageBox.Show("估值协方差为空！"); return;
}
SaveFileDialog saveFileDialog1 = new SaveFileDialog();
saveFileDialog1.FileName = "EstimateCova.txt";
saveFileDialog1.Filter = "文本文档(*.txt)|*.txt";
if (saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
MatrixUtil.Print(new FileStream(saveFileDialog1.FileName, FileMode.Create),
file.GetEstimateCovaMatrix());
FormUtil.ShowIfOpenDirMessageBox(saveFileDialog1.FileName);
}
}