Example usage for org.apache.mahout.math VectorWritable write

Introduction

In this page you can find the example usage for org.apache.mahout.math VectorWritable write.

Prototype

@Override
    public void write(DataOutput out) throws IOException 

Source Link

Usage

From source file:Vectors.java

License:Apache License

public static void write(Vector vector, Path path, Configuration conf, boolean laxPrecision)
        throws IOException {
    FileSystem fs = FileSystem.get(path.toUri(), conf);
    FSDataOutputStream out = fs.create(path);
    try {/*from  w w  w .  jav a  2s . c  o  m*/
        VectorWritable vectorWritable = new VectorWritable(vector);
        vectorWritable.setWritesLaxPrecision(laxPrecision);
        vectorWritable.write(out);
    } finally {
        Closeables.closeQuietly(out);
    }
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.PrefAndSimilarityColumnWritable.java

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    out.writeFloat(prefValue);//  w  w  w .  j a  v a  2s . co  m
    VectorWritable vw = new VectorWritable(similarityColumn);
    vw.setWritesLaxPrecision(true);
    vw.write(out);
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.VectorAndPrefsWritable.java

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    VectorWritable vw = new VectorWritable(vector);
    vw.setWritesLaxPrecision(true);//  w w  w  .  ja  v  a2  s . c  o  m
    vw.write(out);
    Varint.writeUnsignedVarInt(userIDs.size(), out);
    for (int i = 0; i < userIDs.size(); i++) {
        Varint.writeSignedVarLong(userIDs.get(i), out);
        out.writeFloat(values.get(i));
    }
}

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From source file:org.gpfvic.mahout.cf.taste.hadoop.item.VectorOrPrefWritable.java

License:Apache License

@Override
public void write(DataOutput out) throws IOException {
    if (vector == null) {
        out.writeBoolean(false);//w  ww. j av  a  2  s. co m
        Varint.writeSignedVarLong(userID, out);
        out.writeFloat(value);
    } else {
        out.writeBoolean(true);
        VectorWritable vw = new VectorWritable(vector);
        vw.setWritesLaxPrecision(true);
        vw.write(out);
    }
}

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