//deserialize the object public CLabelFeatureData(BinaryReaderEx binReaderEx) : base(binReaderEx) { this.feature = binReaderEx.Read<DataMatrixSerialized<float>>(); }
//deserialize the object public CLabelFeatureDataCoded(BinaryReaderEx binReaderEx) : base(binReaderEx) { this.codeBook = binReaderEx.Read<CodeBook>(); bool featureCodedExist = binReaderEx.ReadBoolean(); if (featureCodedExist) { this.featureCoded = binReaderEx.Read<DataMatrixSerialized<ushort>>(); } }
/// <summary> /// Load LabelFeatureData file - static function for both CLabelFeatureData and CLabelFeatureDataCoded /// load in the file and output a LabelFeatureData object that has the specified Type (type = {LabelFeatureData, LabelFeatureDataCode} /// </summary> /// <param name="inFileName">the name of the file: xxx.tsv == tsv file formation; xxx.bin == binary uncoded data format; xxx.dp == binary coded data format</param> /// <param name="featureParser">parser that understand the feature values</param> /// <param name="labelParser">parser that understand the label values</param> /// <param name="dataGroupBoundary">data group boundaries</param> /// <param name="outDatatype">the output data type LabelFeatureData or LabelFeatureDataCoded</param> /// <param name="activeFeatureNames">only these feature values are loaded</param> /// <param name="cThreads">number of threads used to code the original data</param> /// <returns>the desired LabelFeatureData if no errors in loading; otherwise, null</returns> static public LabelFeatureData Load(string inFileName, IParser<float> featureParser, IParser<float> labelParser, IGroupBoundary dataGroupBoundary, Type outDataType, string[] activeFeatureNames, int cThreads, bool fCacheCodedFeature, bool fSparseCoded) { if (inFileName == null) { return null; } string[] fields = inFileName.Split('.'); if (fields.Length <= 0) { return null; } CLabelFeatureData labelFeatureData = null; string sufix = fields[fields.Length-1]; if (string.Compare(sufix, "bin", true) == 0 || string.Compare(sufix, "dp", true) == 0) { BinaryReaderEx binReaderEx = new BinaryReaderEx(inFileName); Type t = binReaderEx.Read<Type>(); labelFeatureData = (CLabelFeatureData)binReaderEx.Read(t); binReaderEx.Close(); labelFeatureData.SetActiveFeatures(activeFeatureNames); } else // "tsv" or null { TsvFileLoader tsvFileLoader = new TsvFileLoader(inFileName, null, labelParser, featureParser, dataGroupBoundary); labelFeatureData = new CLabelFeatureData(tsvFileLoader.FeatureName, tsvFileLoader.Labels, tsvFileLoader.GroupId, tsvFileLoader.Feature); } if (outDataType.Equals(typeof(CLabelFeatureDataCoded))) { if (labelFeatureData.GetType().Equals(typeof(CLabelFeatureDataCoded))) { if (fCacheCodedFeature) { ((CLabelFeatureDataCoded)labelFeatureData).EncodeFeatureValues(cThreads, fSparseCoded); } } else { //need to upgrade to coded labelFeatureData = new CLabelFeatureDataCoded(labelFeatureData, cThreads, fCacheCodedFeature, fSparseCoded); } } return labelFeatureData; }