Example usage for weka.filters.unsupervised.attribute Add setAttributeType

Introduction

In this page you can find the example usage for weka.filters.unsupervised.attribute Add setAttributeType.

Prototype

public void setAttributeType(SelectedTag value) 

Source Link

Document

Sets the type of attribute to generate.

Usage

From source file:adams.data.instances.AbstractInstanceGenerator.java

License:Open Source License

/**
 * Adds IDs, notes, additional fields to header.
 *
 * @param data   the input data//  ww w  .ja v  a 2 s .  c o m
 */
protected void postProcessHeader(T data) {
    Add add;

    // add the database ID to the output?
    if (m_AddDatabaseID) {
        try {
            add = new Add();
            add.setAttributeIndex("1");
            add.setAttributeName(ArffUtils.getDBIDName());
            add.setAttributeType(new SelectedTag(Attribute.NUMERIC, Add.TAGS_TYPE));
            add.setInputFormat(m_OutputHeader);
            m_OutputHeader = Filter.useFilter(m_OutputHeader, add);
        } catch (Exception e) {
            getLogger().log(Level.SEVERE, "Error initializing the Add filter for database ID!", e);
        }
    }
}

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From source file:adams.flow.transformer.WekaReorderAttributesToReference.java

License:Open Source License

/**
 * Executes the flow item./* ww  w .  j  a v a  2 s.  c  om*/
 *
 * @return      null if everything is fine, otherwise error message
 */
@Override
protected String doExecute() {
    String result;
    Instances dataOld;
    Instance instOld;
    Instances dataNew;
    Instance instNew;
    Attribute att;
    int i;
    StringBuilder order;
    List<Add> adds;
    Add add;
    int index;
    StringBuilder labels;
    int n;
    List<Filter> filters;
    Reorder reorder;

    result = null;

    if (m_OnTheFly && (m_Reference == null)) {
        result = setUpReference();
        if (result != null)
            return result;
    }

    dataNew = null;
    instNew = null;

    // get input data
    if (m_InputToken.getPayload() instanceof Instance) {
        instOld = (Instance) m_InputToken.getPayload();
        dataOld = instOld.dataset();
    } else {
        instOld = null;
        dataOld = (Instances) m_InputToken.getPayload();
    }

    // do we need to initialize filter?
    if (m_InitializeOnce || (m_Reorder == null)) {
        // check incoming data
        if (!m_Lenient) {
            for (i = 0; i < m_Reference.numAttributes(); i++) {
                att = m_Reference.attribute(i);
                if (dataOld.attribute(att.name()) == null) {
                    if (result == null)
                        result = "Missing attribute(s) in incoming data: " + att.name();
                    else
                        result += ", " + att.name();
                }
            }
            if (result != null)
                getLogger().severe(result);
        }

        if (result == null) {
            try {
                // determine indices
                order = new StringBuilder();
                adds = new ArrayList<Add>();
                for (i = 0; i < m_Reference.numAttributes(); i++) {
                    att = m_Reference.attribute(i);
                    if (dataOld.attribute(att.name()) == null) {
                        index = dataOld.numAttributes() + adds.size();
                        add = new Add();
                        add.setAttributeIndex("last");
                        add.setAttributeName(att.name());
                        add.setAttributeType(new SelectedTag(att.type(), Add.TAGS_TYPE));
                        if (att.isNominal()) {
                            labels = new StringBuilder();
                            for (n = 0; n < att.numValues(); n++) {
                                if (labels.length() > 0)
                                    labels.append(",");
                                labels.append(att.value(n));
                            }
                            add.setNominalLabels(labels.toString());
                        }
                        adds.add(add);
                    } else {
                        index = dataOld.attribute(att.name()).index();
                    }
                    if (order.length() > 0)
                        order.append(",");
                    order.append((index + 1));
                }

                // build reorder filter
                reorder = new Reorder();
                reorder.setAttributeIndices(order.toString());

                // build multifilter
                filters = new ArrayList<Filter>();
                filters.addAll(adds);
                filters.add(reorder);
                m_Reorder = new MultiFilter();
                m_Reorder.setFilters(filters.toArray(new Filter[filters.size()]));

                // initialize filter
                m_Reorder.setInputFormat(dataOld);
            } catch (Exception e) {
                result = handleException("Failed to initialize reorder filter!", e);
            }
        }
    }

    // reorder data
    if (result == null) {
        try {
            if (instOld != null) {
                m_Reorder.input(instOld);
                m_Reorder.batchFinished();
                instNew = m_Reorder.output();
                if (m_KeepRelationName)
                    instNew.dataset().setRelationName(dataOld.relationName());
            } else {
                dataNew = Filter.useFilter(dataOld, m_Reorder);
                if (m_KeepRelationName)
                    dataNew.setRelationName(dataOld.relationName());
            }
        } catch (Exception e) {
            result = handleException("Failed to reorder data!", e);
            instNew = null;
            dataNew = null;
        }
    }

    if (instNew != null)
        m_OutputToken = new Token(instNew);
    else if (dataNew != null)
        m_OutputToken = new Token(dataNew);

    return result;
}

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