Analysis.PLS.MainForm.btnCompute_Click C# (CSharp) Method

        private void btnCompute_Click(object sender, EventArgs e)
        {
            if (dgvAnalysisSource.DataSource == null)
            {
                MessageBox.Show("Please load some data first.");
                return;
            }

            // Finishes and save any pending changes to the given data
            dgvAnalysisSource.EndEdit();
            DataTable table = dgvAnalysisSource.DataSource as DataTable;

            // Creates a matrix from the source data table
            double[][] sourceMatrix = table.ToArray(out inputColumnNames);

            // Creates the Simple Descriptive Analysis of the given source
            sda = new DescriptiveAnalysis(inputColumnNames).Learn(sourceMatrix);

            // Populates statistics overview tab with analysis data
            dgvDistributionMeasures.DataSource = sda.Measures;


            // Extract variables
            List<string> inputNames = new List<string>();
            foreach (string name in clbInput.CheckedItems)
                inputNames.Add(name);
            this.inputColumnNames = inputNames.ToArray();

            List<string> outputNames = new List<string>();
            foreach (string name in clbOutput.CheckedItems)
                outputNames.Add(name);
            this.outputColumnNames = outputNames.ToArray();

            DataTable inputTable = table.DefaultView.ToTable(false, inputColumnNames);
            DataTable outputTable = table.DefaultView.ToTable(false, outputColumnNames);

            double[][] inputs = inputTable.ToArray();
            double[][] outputs = outputTable.ToArray();



            // Creates the Partial Least Squares of the given source
            pls = new PartialLeastSquaresAnalysis()
            {
                Method = (AnalysisMethod)cbMethod.SelectedValue,
                Algorithm = (PartialLeastSquaresAlgorithm)cbAlgorithm.SelectedValue
            };


            // Computes the Partial Least Squares
            pls.Learn(inputs, outputs);


            // Populates components overview with analysis data
            dgvWeightMatrix.DataSource = new ArrayDataView(pls.Weights);
            dgvFactors.DataSource = pls.Factors;

            dgvAnalysisLoadingsInput.DataSource = new ArrayDataView(pls.Predictors.FactorMatrix);
            dgvAnalysisLoadingsOutput.DataSource = new ArrayDataView(pls.Dependents.FactorMatrix);

            this.regression = pls.CreateRegression();
            dgvRegressionCoefficients.DataSource = new ArrayDataView(regression.Coefficients, outputColumnNames);
            dgvRegressionIntercept.DataSource = new ArrayDataView(regression.Intercepts, outputColumnNames);

            dgvProjectionComponents.DataSource = pls.Factors;
            numComponents.Maximum = pls.Factors.Count;
            numComponents.Value = 1;

            dgvRegressionComponents.DataSource = pls.Factors;
            numComponentsRegression.Maximum = pls.Factors.Count;
            numComponentsRegression.Value = 1;

            distributionView.DataSource = pls.Factors;
            cumulativeView.DataSource = pls.Factors;
            dgvProjectionSourceX.DataSource = inputTable;
            dgvProjectionSourceY.DataSource = outputTable;

            dgvRegressionInput.DataSource = table.DefaultView.ToTable(false, 
                inputColumnNames.Concatenate(outputColumnNames));
        }