Examples with Apply org.dmg.pmml.Apply used on opensource projects

Example 1 with Apply

use of org.dmg.pmml.Apply in project jpmml-r by jpmml.

the class MVRConverter method encodeSchema.

@Override
public void encodeSchema(RExpEncoder encoder) {
    RGenericVector mvr = getObject();
    RDoubleVector coefficients = (RDoubleVector) mvr.getValue("coefficients");
    RDoubleVector scale = (RDoubleVector) mvr.getValue("scale", true);
    RExp terms = mvr.getValue("terms");
    final RGenericVector model = (RGenericVector) mvr.getValue("model");
    RStringVector rowNames = coefficients.dimnames(0);
    RStringVector columnNames = coefficients.dimnames(1);
    FormulaContext context = new ModelFrameFormulaContext(model);
    Formula formula = FormulaUtil.createFormula(terms, context, encoder);
    // Dependent variable
    {
        FieldName name = FieldName.create(columnNames.asScalar());
        DataField dataField = (DataField) encoder.getField(name);
        encoder.setLabel(dataField);
    }
    // Independent variables
    for (int i = 0; i < rowNames.size(); i++) {
        String rowName = rowNames.getValue(i);
        Feature feature = formula.resolveFeature(rowName);
        if (scale != null) {
            feature = feature.toContinuousFeature();
            Apply apply = PMMLUtil.createApply("/", feature.ref(), PMMLUtil.createConstant(scale.getValue(i)));
            DerivedField derivedField = encoder.createDerivedField(FeatureUtil.createName("scale", feature), OpType.CONTINUOUS, DataType.DOUBLE, apply);
            feature = new ContinuousFeature(encoder, derivedField);
        }
        encoder.addFeature(feature);
    }
}

Example 2 with Apply

use of org.dmg.pmml.Apply in project jpmml-r by jpmml.

the class SVMConverter method scale.

private List<Feature> scale(List<Feature> features, RExpEncoder encoder) {
    RGenericVector svm = getObject();
    RDoubleVector sv = (RDoubleVector) svm.getValue("SV");
    RBooleanVector scaled = (RBooleanVector) svm.getValue("scaled");
    RGenericVector xScale = (RGenericVector) svm.getValue("x.scale");
    RStringVector rowNames = sv.dimnames(0);
    RStringVector columnNames = sv.dimnames(1);
    if ((scaled.size() != columnNames.size()) || (scaled.size() != features.size())) {
        throw new IllegalArgumentException();
    }
    RDoubleVector xScaledCenter = null;
    RDoubleVector xScaledScale = null;
    if (xScale != null) {
        xScaledCenter = (RDoubleVector) xScale.getValue("scaled:center");
        xScaledScale = (RDoubleVector) xScale.getValue("scaled:scale");
    }
    List<Feature> result = new ArrayList<>();
    for (int i = 0; i < columnNames.size(); i++) {
        String columnName = columnNames.getValue(i);
        Feature feature = features.get(i);
        if (scaled.getValue(i)) {
            feature = feature.toContinuousFeature();
            FieldName name = FeatureUtil.createName("scale", feature);
            DerivedField derivedField = encoder.getDerivedField(name);
            if (derivedField == null) {
                Double center = xScaledCenter.getValue(columnName);
                Double scale = xScaledScale.getValue(columnName);
                Apply apply = PMMLUtil.createApply("/", PMMLUtil.createApply("-", feature.ref(), PMMLUtil.createConstant(center)), PMMLUtil.createConstant(scale));
                derivedField = encoder.createDerivedField(name, OpType.CONTINUOUS, DataType.DOUBLE, apply);
            }
            feature = new ContinuousFeature(encoder, derivedField);
        }
        result.add(feature);
    }
    return result;
}

Example 3 with Apply

use of org.dmg.pmml.Apply in project jpmml-r by jpmml.

the class ExpressionCompactorTest method compactNegationExpression.

@Test
public void compactNegationExpression() {
    FieldRef fieldRef = new FieldRef(FieldName.create("x"));
    Constant constant = createConstant("0");
    Apply apply = compact(createApply("not", createApply("equal", fieldRef, constant)));
    assertEquals("notEqual", apply.getFunction());
    assertEquals(Arrays.asList(fieldRef, constant), apply.getExpressions());
    apply = compact(createApply("not", createApply("isMissing", fieldRef)));
    assertEquals("isNotMissing", apply.getFunction());
    assertEquals(Arrays.asList(fieldRef), apply.getExpressions());
}

Example 4 with Apply

use of org.dmg.pmml.Apply in project jpmml-r by jpmml.

the class ExpressionTranslatorTest method translateParenthesizedExpression.

@Test
public void translateParenthesizedExpression() {
    Apply apply = (Apply) ExpressionTranslator.translateExpression("TRUE | TRUE & FALSE");
    checkApply(apply, "or", Constant.class, Apply.class);
    apply = (Apply) ExpressionTranslator.translateExpression("(TRUE | TRUE) & FALSE");
    checkApply(apply, "and", Apply.class, Constant.class);
}

Example 5 with Apply

use of org.dmg.pmml.Apply in project jpmml-r by jpmml.

the class ExpressionTranslatorTest method translate.

@Test
public void translate() {
    Apply apply = (Apply) ExpressionTranslator.translateExpression("(1.0 + log(A / B)) ^ 2");
    List<Expression> expressions = checkApply(apply, "pow", Apply.class, Constant.class);
    Expression left = expressions.get(0);
    Expression right = expressions.get(1);
    checkConstant((Constant) right, "2", null);
    expressions = checkApply((Apply) left, "+", Constant.class, Apply.class);
    left = expressions.get(0);
    right = expressions.get(1);
    checkConstant((Constant) left, "1.0", DataType.DOUBLE);
    expressions = checkApply((Apply) right, "ln", Apply.class);
    left = expressions.get(0);
    expressions = checkApply((Apply) left, "/", FieldRef.class, FieldRef.class);
    left = expressions.get(0);
    right = expressions.get(1);
    checkFieldRef((FieldRef) left, FieldName.create("A"));
    checkFieldRef((FieldRef) right, FieldName.create("B"));
}