Examples with DataProvider org.knime.base.node.viz.plotter.DataProvider used on opensource projects

Example 6 with DataProvider

use of org.knime.base.node.viz.plotter.DataProvider in project knime-core by knime.

the class LinReg2LinePlotter method updateSize.

/**
 * First calls super then adapts the regression line.
 */
@Override
public void updateSize() {
    if (getXAxis() == null || getXAxis().getCoordinate() == null || getYAxis() == null || getYAxis().getCoordinate() == null) {
        return;
    }
    super.updateSize();
    DataProvider dataProvider = getDataProvider();
    if (dataProvider == null) {
        return;
    }
    RegressionContent content = ((LinReg2DataProvider) dataProvider).getLinRegContent();
    if (content == null) {
        return;
    }
    double xMin = ((NumericCoordinate) getXAxis().getCoordinate()).getMinDomainValue();
    double xMax = ((NumericCoordinate) getXAxis().getCoordinate()).getMaxDomainValue();
    String xName = getSelectedXColumn().getName();
    List<String> includedList = content.getCovariates();
    String target = content.getSpec().getTargetCols().get(0).getName();
    if (!xName.equals(target) && includedList.contains(xName)) {
        double yMin = getApproximationFor(xName, xMin, content);
        double yMax = getApproximationFor(xName, xMax, content);
        ((LinReg2LineDrawingPane) getDrawingPane()).setLineFirstPoint(getMappedXValue(new DoubleCell(xMin)), getMappedYValue(new DoubleCell(yMin)));
        ((LinReg2LineDrawingPane) getDrawingPane()).setLineLastPoint(getMappedXValue(new DoubleCell(xMax)), getMappedYValue(new DoubleCell(yMax)));
    }
}

Example 7 with DataProvider

use of org.knime.base.node.viz.plotter.DataProvider in project knime-core by knime.

the class LinRegLinePlotter method updateSize.

/**
 * First calls super then adapts the regression line.
 */
@Override
public void updateSize() {
    if (getXAxis() == null || getXAxis().getCoordinate() == null || getYAxis() == null || getYAxis().getCoordinate() == null) {
        return;
    }
    super.updateSize();
    DataProvider dataProvider = getDataProvider();
    if (dataProvider == null) {
        return;
    }
    DataArray data = dataProvider.getDataArray(0);
    if (data == null) {
        return;
    }
    LinearRegressionContent params = ((LinRegDataProvider) dataProvider).getParams();
    if (params == null) {
        return;
    }
    double xMin = ((NumericCoordinate) getXAxis().getCoordinate()).getMinDomainValue();
    double xMax = ((NumericCoordinate) getXAxis().getCoordinate()).getMaxDomainValue();
    String xName = getSelectedXColumn().getName();
    String[] temp = ((LinRegDataProvider) dataProvider).getLearningColumns();
    if (temp == null) {
        return;
    }
    List<String> includedCols = Arrays.asList(temp);
    if (!xName.equals(params.getTargetColumnName()) && includedCols.contains(xName)) {
        double yMin = params.getApproximationFor(xName, xMin);
        double yMax = params.getApproximationFor(xName, xMax);
        ((LinRegLineDrawingPane) getDrawingPane()).setLineFirstPoint(getMappedXValue(new DoubleCell(xMin)), getMappedYValue(new DoubleCell(yMin)));
        ((LinRegLineDrawingPane) getDrawingPane()).setLineLastPoint(getMappedXValue(new DoubleCell(xMax)), getMappedYValue(new DoubleCell(yMax)));
    }
}

Example 8 with DataProvider

use of org.knime.base.node.viz.plotter.DataProvider in project knime-core by knime.

the class LinRegLinePlotter method updatePaintModel.

/**
 * Retrieves the linear regression params, updates the column selection
 * boxes appropriately and adds the regression line to the scatterplot.
 */
@Override
public void updatePaintModel() {
    DataProvider dataProvider = getDataProvider();
    if (dataProvider == null) {
        return;
    }
    DataArray data = dataProvider.getDataArray(0);
    if (data == null) {
        return;
    }
    LinearRegressionContent params = ((LinRegDataProvider) dataProvider).getParams();
    if (params == null) {
        return;
    }
    // set the target column to fix
    ((LinRegLinePlotterProperties) getProperties()).setTargetColumn(params.getTargetColumnName());
    // get the included columns
    String[] includedCols = ((LinRegDataProvider) dataProvider).getLearningColumns();
    if (includedCols == null) {
        return;
    }
    ((LinRegLinePlotterProperties) getProperties()).setIncludedColumns(includedCols);
    // update the combo boxes
    DataTableSpec spec = data.getDataTableSpec();
    ((LinRegLinePlotterProperties) getProperties()).update(spec);
    super.updatePaintModel();
    double xMin = ((NumericCoordinate) getXAxis().getCoordinate()).getMinDomainValue();
    double xMax = ((NumericCoordinate) getXAxis().getCoordinate()).getMaxDomainValue();
    String xName = getSelectedXColumn().getName();
    List<String> includedList = Arrays.asList(includedCols);
    if (!xName.equals(params.getTargetColumnName()) && includedList.contains(xName)) {
        double yMin = params.getApproximationFor(xName, xMin);
        double yMax = params.getApproximationFor(xName, xMax);
        ((LinRegLineDrawingPane) getDrawingPane()).setLineFirstPoint(getMappedXValue(new DoubleCell(xMin)), getMappedYValue(new DoubleCell(yMin)));
        ((LinRegLineDrawingPane) getDrawingPane()).setLineLastPoint(getMappedXValue(new DoubleCell(xMax)), getMappedYValue(new DoubleCell(yMax)));
        getDrawingPane().repaint();
    }
}