Пример #1
0
        public ScanBasedTagSearchEngine(
            LcMsRun run,
            ISequenceTagFinder seqTagFinder,
            LcMsPeakMatrix featureFinder,
            FastaDatabase fastaDb,
            Tolerance tolerance,
            AminoAcidSet aaSet,
            CompositeScorerFactory ms2ScorerFactory = null,
            int minMatchedTagLength = DefaultMinMatchedTagLength,
            double maxSequenceMass = 50000.0,
            int minProductIonCharge = 1,
            int maxProductIonCharge = 20)
        {
            _run = run;
            _featureFinder = featureFinder;
            
            _searchableDb = new SearchableDatabase(fastaDb);

            _tolerance = tolerance;
            _aaSet = aaSet;
            _minMatchedTagLength = minMatchedTagLength;
            _maxSequenceMass = maxSequenceMass;
            _minProductIonCharge = minProductIonCharge;
            _maxProductIonCharge = maxProductIonCharge;
            MinScan = int.MinValue;
            MaxScan = int.MaxValue;
            _ms2ScorerFactory = ms2ScorerFactory;
            _seqTagFinder = seqTagFinder;
        }
Пример #2
0
 public TagMatchFinder(
     ProductSpectrum spec,
     IScorer ms2Scorer,
     LcMsPeakMatrix featureFinder,
     string proteinSequence, 
     Tolerance tolerance, 
     AminoAcidSet aaSet, 
     double maxSequenceMass)
 {
     _spec = spec;
     _ms2Scorer = ms2Scorer;
     _featureFinder = featureFinder;
     _proteinSequence = proteinSequence;
     _tolerance = tolerance;
     _aaSet = aaSet;
     _maxSequenceMass = maxSequenceMass;
 }
Пример #3
0
        /// <summary>
        /// Find features in the data file
        /// </summary>
        /// <param name="rawFile">Data file (either a pbf file or a file type from which a pbf file can be auto-created)</param>
        /// <returns>0 if success; negative number on error</returns>
        private int ProcessFile(string rawFile)
        {
            var outDirectory = GetOutputDirectory(rawFile);
            if (string.IsNullOrEmpty(outDirectory))
                return -1;

            var baseName = Path.GetFileName(MassSpecDataReaderFactory.RemoveExtension(rawFile));
            var ms1FeaturesFilePath = Path.Combine(outDirectory, baseName + "." + FileExtension);
            var outCsvFilePath = Path.Combine(outDirectory, baseName + "_" + FileExtension + ".csv");
            var pngFilePath = Path.Combine(outDirectory, baseName + "_" + FileExtension + ".png");

            if (File.Exists(ms1FeaturesFilePath))
            {
                Console.WriteLine(@"ProMex output already exists: {0}", ms1FeaturesFilePath);
                return -2;
            }

            if (!File.Exists(rawFile))
            {
                ShowErrorMessage(@"Cannot find input file: " + rawFile);
                return -3;
            }

            var stopwatch = Stopwatch.StartNew();
            Console.WriteLine(@"Start loading MS1 data from {0}", rawFile);
            var run = PbfLcMsRun.GetLcMsRun(rawFile);

            var featureFinder = new LcMsPeakMatrix(run, _likelihoodScorer, 1, 60, Parameters.MaxThreads);
            Console.WriteLine(@"Complete loading MS1 data. Elapsed Time = {0:0.000} sec", (stopwatch.ElapsedMilliseconds) / 1000.0d);

            if (run.GetMs1ScanVector().Length == 0)
            {
                ShowErrorMessage(@"Data file has no MS1 spectra: " + Path.GetFileName(rawFile));
                return -4;
            }

            var comparer = featureFinder.Comparer;
            var container = new LcMsFeatureContainer(featureFinder.Ms1Spectra, _likelihoodScorer, new LcMsFeatureMergeComparer(new Tolerance(10)));
            var minSearchMassBin = comparer.GetBinNumber(Parameters.MinSearchMass);
            var maxSearchMassBin = comparer.GetBinNumber(Parameters.MaxSearchMass);
            double totalMassBin = maxSearchMassBin - minSearchMassBin + 1;

            Console.WriteLine(@"Start MS1 feature extraction.");
            stopwatch.Restart();
            for (var binNum = minSearchMassBin; binNum <= maxSearchMassBin; binNum++)
            {
                var clusters = featureFinder.FindFeatures(binNum);
                container.Add(clusters);

                if (binNum > minSearchMassBin && (binNum - minSearchMassBin) % 1000 == 0)
                {
                    var elapsed = (stopwatch.ElapsedMilliseconds) / 1000.0d;
                    var processedBins = binNum - minSearchMassBin;
                    var processedPercentage = ((double)processedBins / totalMassBin) * 100;
                    Console.WriteLine(@"Processing {0:0.0}% of mass bins ({1:0.0} Da); elapsed time = {2:0.000} sec; # of features = {3}",
                        processedPercentage, featureFinder.Comparer.GetMzEnd(binNum), elapsed,
                        container.NumberOfFeatures);
                }
            }

            Console.WriteLine(@"Complete MS1 feature extraction.");
            Console.WriteLine(@" - Elapsed time = {0:0.000} sec", (stopwatch.ElapsedMilliseconds) / 1000.0d);
            Console.WriteLine(@" - Number of extracted features = {0}", container.NumberOfFeatures);
            Console.WriteLine(@"Start selecting mutually independent features from feature network graph");
            stopwatch.Restart();
            

            // write result files
            var tsvWriter = new StreamWriter(ms1FeaturesFilePath);
            tsvWriter.WriteLine(GetHeaderString(Parameters.ScoreReport));

            StreamWriter csvWriter = null;
            if (Parameters.CsvOutput)
            {
                csvWriter = new StreamWriter(outCsvFilePath);
                csvWriter.WriteLine("scan_num,charge,abundance,mz,fit,monoisotopic_mw,FeatureID");
            }
            
            var filteredFeatures = container.GetFilteredFeatures(featureFinder);
            var featureId = 0;
            foreach (var feature in filteredFeatures)
            {
                featureId++;
                tsvWriter.WriteLine("{0}\t{1}", featureId, GetString(feature, Parameters.ScoreReport));

                var mostAbuIdx = feature.TheoreticalEnvelope.IndexOrderByRanking[0];

                if (csvWriter != null)
                {
                    foreach (var envelope in feature.EnumerateEnvelopes())
                    {
                        //var mostAbuIsotopeInternalIndex = cluster.IsotopeList.SortedIndexByIntensity[0];
                        var mostAbuPeak = envelope.Peaks[mostAbuIdx];
                        if (mostAbuPeak == null || !mostAbuPeak.Active) continue;

                        var fitscore = 1.0 - feature.BestCorrelationScore;
                        csvWriter.WriteLine(string.Format("{0},{1},{2},{3},{4},{5},{6}", envelope.ScanNum, envelope.Charge, envelope.Abundance, mostAbuPeak.Mz, fitscore, envelope.MonoMass, featureId));
                    }
                }
            }
            tsvWriter.Close();

            Console.WriteLine(@"Complete feature filtration");
            Console.WriteLine(@" - Elapsed time = {0:0.000} sec", (stopwatch.ElapsedMilliseconds) / 1000.0d);
            Console.WriteLine(@" - Number of filtered features = {0}", featureId);
            Console.WriteLine(@" - ProMex output: {0}", ms1FeaturesFilePath);

            if (csvWriter != null)
            {
                csvWriter.Close();
                Console.WriteLine(@" - ProMex output in ICR2LS format: {0}", outCsvFilePath);
            }

            if (Parameters.FeatureMapImage)
            {
                CreateFeatureMapImage(run, ms1FeaturesFilePath, pngFilePath);
            }

            return 0;
        }
Пример #4
0
        public void TestLcMsFeatureXic()
        {
            var methodName = MethodBase.GetCurrentMethod().Name;
            TestUtils.ShowStarting(methodName);

            const string rawFile = @"\\proto-11\MSXML_Cache\PBF_Gen_1_193\2015_1\CPTAC_Intact_rep2_15Jan15_Bane_C2-14-08-02RZ.pbf";
            //const string rawFile = @"D:\MassSpecFiles\training\raw\QC_Shew_Intact_26Sep14_Bane_C2Column3.pbf";
            
            if (!File.Exists(rawFile))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, rawFile);
            }

            var run = PbfLcMsRun.GetLcMsRun(rawFile);
            var scorer = new LcMsFeatureLikelihood();
            var featureFinder = new LcMsPeakMatrix(run, scorer);
            var feature = featureFinder.GetLcMsPeakCluster(2388.278, 4, 3774, 3907);

            //feature = featureFinder.GetLcMsPeakCluster(8151.3706, 7, 13, 4201, 4266);

            //feature = featureFinder.GetLcMsPeakCluster(8151.41789, 7, 13, 2861, 2941);
            
            var ms1ScanToIndex = run.GetMs1ScanNumToIndex();
            var minCol = ms1ScanToIndex[feature.MinScanNum];
            var maxCol = ms1ScanToIndex[feature.MaxScanNum];
            //var minRow = feature.MinCharge - LcMsPeakMatrix.MinScanCharge;
            //var maxRow = feature.MaxCharge - LcMsPeakMatrix.MinScanCharge;
            
            Console.WriteLine("---------------------------------------------------------------");
            for (var i = 0; i < feature.Envelopes.Length; i++)
            {
                for (var j = 0; j < feature.Envelopes[i].Length; j++)
                {
                    Console.Write(feature.Envelopes[i][j] != null ? feature.Envelopes[i][j].PearsonCorrelation : 0);
                    Console.Write("\t");
                }
                Console.Write("\n");
            }
            Console.WriteLine("---------------------------------------------------------------");
            for (var i = 0; i < feature.Envelopes.Length; i++)
            {
                for (var j = 0; j < feature.Envelopes[i].Length; j++)
                {
                    Console.Write(feature.Envelopes[i][j] != null ? feature.Envelopes[i][j].BhattacharyyaDistance : 0);
                    Console.Write("\t");
                }
                Console.Write("\n");
            }

            Console.WriteLine("---------------------------------------------------------------");
            for (var i = 0; i < feature.Envelopes.Length; i++)
            {
                for (var j = 0; j < feature.Envelopes[i].Length; j++)
                {
                    Console.Write(feature.Envelopes[i][j] != null ? feature.Envelopes[i][j].Abundance : 0);
                    Console.Write("\t");
                }
                Console.Write("\n");
            }
            
            



        }
Пример #5
0
        public void TestLcMsFeatureFinder()
        {
            var methodName = MethodBase.GetCurrentMethod().Name;
            TestUtils.ShowStarting(methodName);

            const string rawFile = @"D:\MassSpecFiles\training\raw\QC_Shew_Intact_26Sep14_Bane_C2Column3.pbf";
            //const string rawFile = @"D:\MassSpecFiles\CompRef\CPTAC_Intact_CR_Pool_2_25Jun15_Bane_15-02-02RZ.pbf";
            //const string rawFile = @"D:\MassSpecFiles\IMER\Dey_IMERblast_01_08May14_Alder_14-01-33.pbf";
            //const string rawFile = @"\\proto-11\MSXML_Cache\PBF_Gen_1_193\2015_3\MZ20150729FG_WT1.pbf";

            if (!File.Exists(rawFile))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, rawFile);
            }

            // var outTsvFilePath = MassSpecDataReaderFactory.ChangeExtension(rawFile, "ms1ft");
            //var scoreDataPath = @"D:\MassSpecFiles\training";
            var scorer = new LcMsFeatureLikelihood();
            var stopwatch = Stopwatch.StartNew();
            Console.WriteLine(@"Start loading MS1 data from {0}", rawFile);
            var run = PbfLcMsRun.GetLcMsRun(rawFile);
            var featureFinder = new LcMsPeakMatrix(run, scorer);
            Console.WriteLine(@"Complete loading MS1 data. Elapsed Time = {0:0.000} sec",
                (stopwatch.ElapsedMilliseconds)/1000.0d);

            var container = new LcMsFeatureContainer(featureFinder.Ms1Spectra, scorer, new LcMsFeatureMergeComparer(new Tolerance(10)));
            var minSearchMassBin = featureFinder.Comparer.GetBinNumber(11180.33677);
            var maxSearchMassBin = featureFinder.Comparer.GetBinNumber(11180.33677);
            double totalMassBin = maxSearchMassBin - minSearchMassBin + 1;

            Console.WriteLine(@"Start MS1 feature extraction.");

            stopwatch.Restart();
            for (var binNum = minSearchMassBin; binNum <= maxSearchMassBin; binNum++)
            {
                var clusters = featureFinder.FindFeatures(binNum);
                container.Add(clusters);

                if (binNum > minSearchMassBin && (binNum - minSearchMassBin)%1000 == 0)
                {
                    var elapsed = (stopwatch.ElapsedMilliseconds)/1000.0d;
                    var processedBins = binNum - minSearchMassBin;
                    var processedPercentage = ((double) processedBins/totalMassBin)*100;
                    Console.WriteLine(
                        @"Processing {0:0.0}% of mass bins ({1:0.0} Da); elapsed time = {2:0.000} sec; # of features = {3}",
                        processedPercentage, featureFinder.Comparer.GetMzEnd(binNum), elapsed,
                        container.NumberOfFeatures);
                }
            }

            Console.WriteLine(@"Complete MS1 feature extraction.");
            Console.WriteLine(@" - Elapsed time = {0:0.000} sec", (stopwatch.ElapsedMilliseconds)/1000.0d);
            Console.WriteLine(@" - Number of extracted features = {0}", container.NumberOfFeatures);

            // write result files
            Console.WriteLine(@"Start selecting mutually independent features from feature network graph");
            

            stopwatch.Stop();

            // Start to quantify accurate abundance
            stopwatch.Restart();
            //var quantAnalyzer = new TargetMs1FeatureMatrix(run);
            //var oriResult = new List<Ms1FeatureCluster>();
            //var quantResult = new List<Ms1Feature>();

            var featureId = 0;
            var ms1ScanNums = run.GetMs1ScanVector();
            //tsvWriter.WriteLine(GetHeaderString() + "\tQMinScanNum\tQMaxScanNum\tQMinCharge\tQMaxCharge\tQAbundance");
            
            var filteredFeatures = container.GetFilteredFeatures(featureFinder);
            foreach (var feature in filteredFeatures)
            {
                Console.Write(featureId);
                Console.Write("\t");
                Console.Write(feature.Mass);
                Console.Write("\t");
                Console.Write(feature.MinScanNum);
                Console.Write("\t");
                Console.Write(feature.MaxScanNum);
                Console.Write("\t");
                Console.Write(feature.MinCharge);
                Console.Write("\t");
                Console.Write(feature.MaxCharge);
                Console.Write("\t");

                Console.Write(feature.RepresentativeScanNum);
                Console.Write("\t");
                Console.Write(feature.RepresentativeMz);
                Console.Write("\t");
                Console.Write(feature.RepresentativeCharge);
                Console.Write("\t");

                //Console.Write(feature.BestSummedEnvelopeDistance); Console.Write("\t");
                //Console.Write(feature.BestEnvelopeDistance); Console.Write("\t");
                Console.Write(feature.BestDistanceScoreAcrossCharge[0]);
                Console.Write("\t");
                Console.Write(feature.BestDistanceScoreAcrossCharge[1]);
                Console.Write("\t");

                Console.Write(feature.BestCorrelationScoreAcrossCharge[0]);
                Console.Write("\t");
                Console.Write(feature.BestCorrelationScoreAcrossCharge[1]);
                Console.Write("\t");

                Console.Write(feature.BestIntensityScoreAcrossCharge[0]);
                Console.Write("\t");
                Console.Write(feature.BestIntensityScoreAcrossCharge[1]);
                Console.Write("\t");

                Console.Write(feature.AbundanceDistributionAcrossCharge[0]);
                Console.Write("\t");
                Console.Write(feature.AbundanceDistributionAcrossCharge[1]);
                Console.Write("\t");

                Console.Write(feature.XicCorrelationBetweenBestCharges[0]);
                Console.Write("\t");
                Console.Write(feature.XicCorrelationBetweenBestCharges[1]);
                Console.Write("\t");

                Console.Write(feature.Score);
                Console.Write("\n");
                featureId++;

            }
        }
Пример #6
0
        public void FeatureFind(List<ProteinSpectrumMatch> prsms, LcMsRun run, string outTsvFilePath)
        {
            var featureFinder = new LcMsPeakMatrix(run, new LcMsFeatureLikelihood());
            // write result files
            var tsvWriter = new StreamWriter(outTsvFilePath);
            tsvWriter.WriteLine(LcMsFeatureFinderLauncher.GetHeaderString(false));

            var featureId = 1;
            foreach (var match in prsms)
            {
                var minScan = run.GetPrevScanNum(match.ScanNum, 1);
                var maxScan = run.GetNextScanNum(match.ScanNum, 1);
                var feature = featureFinder.GetLcMsPeakCluster(match.Mass, match.Charge, minScan, maxScan);
                
                if (feature == null) continue;
                
                tsvWriter.WriteLine("{0}\t{1}", featureId, LcMsFeatureFinderLauncher.GetString(feature, false));
                featureId++;
            }
            
            tsvWriter.Close();            
        }
Пример #7
0
        public void ExtractLcMsFeaturesForTrainingSet()
        {
            var methodName = MethodBase.GetCurrentMethod().Name;
            TestUtils.ShowStarting(methodName);

            const string idFileFolder = @"D:\MassSpecFiles\training\FilteredIdResult";
            if (!Directory.Exists(idFileFolder))
            {
                Assert.Ignore(@"Skipping test {0} since folder not found: {1}", methodName, idFileFolder);
            }
            
            var tolerance = new Tolerance(10);
            var tolerance2 = new Tolerance(20);
            var id = 1;
            
            
            for(var d = 0; d < TrainSetFileLists.Length; d++)
            {
                var dataset = TrainSetFileLists[d];
                var dataname = Path.GetFileNameWithoutExtension(dataset);
                var filtedIdResultFile = string.Format(@"{0}\{1}.trainset.tsv", idFileFolder, Path.GetFileNameWithoutExtension(dataset));
                var featureResult = string.Format(@"{0}\{1}.ms1ft", idFileFolder, Path.GetFileNameWithoutExtension(dataset));

                if (!File.Exists(dataset))
                {
                    Console.WriteLine(@"Warning: Skipping since file not found: {0}", dataset);
                    continue;
                }
                if (!File.Exists(filtedIdResultFile))
                {
                    Console.WriteLine(@"Warning: Skipping since file not found: {0}", filtedIdResultFile);
                    continue;
                }


                var run = PbfLcMsRun.GetLcMsRun(dataset);
                
                
                var targetStatWriter = new StreamWriter(string.Format(@"D:\MassSpecFiles\training\statistics\{0}.tsv", Path.GetFileNameWithoutExtension(dataset)));
                var decoyStatWriter = new StreamWriter(string.Format(@"D:\MassSpecFiles\training\statistics\{0}_decoy.tsv", Path.GetFileNameWithoutExtension(dataset)));
                var writer = new StreamWriter(featureResult);

                writer.Write("Ms2MinScan\tMs2MaxScan\tMs2MinCharge\tMs2MaxCharge\tMs2Mass\t");
                writer.Write("Mass\tMinScan\tMaxScan\tMinCharge\tMaxCharge\tMinTime\tMaxTime\tElution\tGood\n");
                var tsvParser = new TsvFileParser(filtedIdResultFile);

                var featureFinder = new LcMsPeakMatrix(run);
                
                
                for (var i = 0; i < tsvParser.NumData; i++)
                {
                    var minScan = int.Parse(tsvParser.GetData("MinScan")[i]);
                    var maxScan = int.Parse(tsvParser.GetData("MaxScan")[i]);
                    var minCharge = int.Parse(tsvParser.GetData("MinCharge")[i]);
                    var maxCharge = int.Parse(tsvParser.GetData("MaxCharge")[i]);
                    var mass = double.Parse(tsvParser.GetData("Mass")[i]);

                    writer.Write(minScan);
                    writer.Write("\t");
                    writer.Write(maxScan);
                    writer.Write("\t");
                    writer.Write(minCharge);
                    writer.Write("\t");
                    writer.Write(maxCharge);
                    writer.Write("\t");
                    writer.Write(mass);
                    writer.Write("\t");

                    var binNum = featureFinder.Comparer.GetBinNumber(mass);

                    var binMass = featureFinder.Comparer.GetMzAverage(binNum);

                    var binNumList = (mass < binMass) ? new int[] { binNum, binNum - 1, binNum + 1 } : new int[] { binNum, binNum + 1, binNum - 1 };
                    LcMsPeakCluster refinedFeature = null;

                    foreach (var bi in binNumList)
                    {
                        var tempList = new List<LcMsPeakCluster>();
                        var features = featureFinder.FindFeatures(bi);
                        var massTh = (mass < 2000) ? tolerance2.GetToleranceAsTh(mass) : tolerance.GetToleranceAsTh(mass);
                        foreach (var feature in features)
                        {
                            if (Math.Abs(mass - feature.Mass) < massTh) tempList.Add(feature);
                        }

                        //var nHits = 0;
                        var highestAbu = 0d;
                        //var scans = Enumerable.Range(minScan, maxScan - minScan + 1);
                        foreach (var feature in tempList)
                        {
                            //var scans2 = Enumerable.Range(feature.MinScanNum, feature.MaxScanNum - feature.MinScanNum + 1);
                            //var hitScans = scans.Intersect(scans2).Count();
                            if (feature.MinScanNum < 0.5*(minScan + maxScan) &&
                                0.5*(minScan + maxScan) < feature.MaxScanNum)
                            {
                                if (feature.Abundance > highestAbu)
                                {
                                    refinedFeature = feature;
                                    highestAbu = feature.Abundance;
                                }
                            }
                            /*if (hitScans > 0)
                            {
                                refinedFeature = feature;
                                nHits = hitScans;
                            }*/
                        }

                        if (refinedFeature != null) break;
                    }

                    if (refinedFeature != null)
                    {
                        writer.Write(refinedFeature.Mass);
                        writer.Write("\t");
                        writer.Write(refinedFeature.MinScanNum);
                        writer.Write("\t");
                        writer.Write(refinedFeature.MaxScanNum);
                        writer.Write("\t");
                        writer.Write(refinedFeature.MinCharge);
                        writer.Write("\t");
                        writer.Write(refinedFeature.MaxCharge);
                        writer.Write("\t");
                        writer.Write(refinedFeature.MinElutionTime);
                        writer.Write("\t");
                        writer.Write(refinedFeature.MaxElutionTime);
                        writer.Write("\t");
                        writer.Write(refinedFeature.MaxElutionTime - refinedFeature.MinElutionTime);
                        writer.Write("\t");

                        var good = (refinedFeature.MinScanNum <= minScan && refinedFeature.MaxScanNum >= maxScan);
                        writer.Write(good ? 1 : 0);
                        writer.Write("\n");
                        //writer.Write(0); writer.Write("\t");
                        //writer.Write(0); writer.Write("\n");

                        OutputEnvelopPeakStat(id, refinedFeature, targetStatWriter);

                        var chargeRange = featureFinder.GetDetectableMinMaxCharge(refinedFeature.RepresentativeMass, run.MinMs1Mz, run.MaxMs1Mz);
                        refinedFeature.UpdateWithDecoyScore(featureFinder.Ms1Spectra, chargeRange.Item1, chargeRange.Item2);
                        OutputEnvelopPeakStat(id, refinedFeature, decoyStatWriter);
                        id++;
                    }
                    else
                    {
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\t");
                        writer.Write(0);
                        writer.Write("\n");

                    }
                    //var feature = featureFinder.FindLcMsPeakCluster(mass, (int) scan, (int) charge);
                }
                writer.Close();
                targetStatWriter.Close();
                decoyStatWriter.Close();
                Console.WriteLine(dataname);
            }
        }
Пример #8
0
        public void TestFeatureExampleForFigure()
        {
            var methodName = MethodBase.GetCurrentMethod().Name;
            TestUtils.ShowStarting(methodName);

            const string rawFile = @"\\proto-11\MSXML_Cache\PBF_Gen_1_193\2015_1\CPTAC_Intact_rep6_15Jan15_Bane_C2-14-08-02RZ.pbf";
            //const string rawFile = @"D:\MassSpecFiles\training\raw\QC_Shew_Intact_26Sep14_Bane_C2Column3.pbf";

            if (!File.Exists(rawFile))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, rawFile);
            }

            var run = PbfLcMsRun.GetLcMsRun(rawFile);
            var scorer = new LcMsFeatureLikelihood();
            var featureFinder = new LcMsPeakMatrix(run, scorer);
            var feature = featureFinder.GetLcMsPeakCluster(28061.6177, 20, 34, 7624, 7736);

            var writer = new StreamWriter(@"D:\MassSpecFiles\CPTAC_rep10\example\peaks.txt");

            var envelope = feature.TheoreticalEnvelope;
            foreach (var e in envelope.Isotopes) Console.WriteLine(e.Ratio);

            foreach (var env in feature.EnumerateEnvelopes())
            {
                var corr = env.PearsonCorrelation;
                for(var i = 0; i < envelope.Size; i++)
                {
                    var peak = env.Peaks[i];
                    if (peak == null) continue;
                    writer.Write("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}\n", env.ScanNum, run.GetElutionTime(env.ScanNum), env.Charge, i, peak.Mz, peak.Intensity, corr);
                }
            }
            writer.Close();


        }
Пример #9
0
        public void TestMs1EvidenceScore()
        {
            var methodName = MethodBase.GetCurrentMethod().Name;
            TestUtils.ShowStarting(methodName);

            const string TestRawFile = @"\\protoapps\UserData\Jungkap\Lewy\Lewy_intact_01.pbf";
            if (!File.Exists(TestRawFile))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, TestRawFile);
            }

            const string TestResultFile = @"\\protoapps\UserData\Jungkap\Lewy\Lewy_intact_01_IcTda.tsv";
            if (!File.Exists(TestResultFile))
            {
                Assert.Ignore(@"Skipping test {0} since file not found: {1}", methodName, TestResultFile);
            }

            var run = PbfLcMsRun.GetLcMsRun(TestRawFile);
            var tsvParser = new TsvFileParser(TestResultFile);
            var featureFinder = new LcMsPeakMatrix(run);

            for (var i = 0; i < tsvParser.NumData; i++)
            {
                var scan = int.Parse(tsvParser.GetData("Scan")[i]);
                var charge = int.Parse(tsvParser.GetData("Charge")[i]);
                var mass = double.Parse(tsvParser.GetData("Mass")[i]);
                var qvalue = double.Parse(tsvParser.GetData("QValue")[i]);

                //var targetFeature = new TargetFeature(mass, charge, scan);
                var score = featureFinder.GetMs1EvidenceScore(scan, mass, charge);
                Console.WriteLine("{0}\t{1}\t{2}\t{3}\t{4}", scan, mass, charge, qvalue, score);
            }   
        }