public MSMatch(MSMatch MS)
 {
     Score         = MS.Score;
     MZ            = MS.MZ;
     RT            = MS.RT;
     FirstIsotope  = MS.FirstIsotope;
     SecondIsotope = MS.SecondIsotope;
     TimeCoeff     = MS.TimeCoeff;
     if (LowerCharges != null)
     {
         LowerCharges = new MSMatch(MS.LowerCharges);
     }
     else
     {
         LowerCharges = null;
     }
     if (UpperCharges != null)
     {
         UpperCharges = new MSMatch(MS.UpperCharges);
     }
     else
     {
         UpperCharges = null;
     }
 }
Exemplo n.º 2
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        public MSMatch FindMatchwithCharges(int Scan, double MZ, int Charge, double LowMZ, double HighMZ)
        {
            //double LowMZ =  (MZ * Charge + (float) 1.007277) / (Charge + 1);
            //double HighMZ = (MZ * Charge - 1.007277) / (Charge - 1);

            MSMatch First = FindMatch(Scan, MZ, Charge);

            if (First.Score == 0.0 || First.SecondIsotope == 0.0)
            {
                return(First);
            }

            MSMatch Ret;

            if (Charge > 1)
            {
                Ret = FindMatch(Scan, HighMZ, Charge - 1);
                if (Ret.Score != 0.0 && Ret.SecondIsotope > 0.0)
                {
                    First.LowerCharges = Ret;
                }
            }

            Ret = FindMatch(Scan, LowMZ, Charge + 1);
            if (Ret.Score != 0.0 && Ret.SecondIsotope > 0.0)
            {
                First.UpperCharges = Ret;
            }
            return(First);
        }
Exemplo n.º 3
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 public QMatch(QMatch Match)
 {
     ApexRT       = Match.ApexRT;
     ApexScore    = Match.ApexScore;
     ApexMZ       = Match.ApexMZ;
     ApexIndex    = Match.ApexIndex;
     Score        = Match.Score;
     RTDisp       = Match.RTDisp;
     IsotopeRatio = Match.IsotopeRatio;
     MaxConv      = Match.MaxConv;
     Shift        = Match.Shift;
     LongESICoef  = Match.LongESICoef;
     if (Match.MSMatches != null)
     {
         MSMatches = new List <MSMatch>();
         MSMatch MS;
         for (int i = 0; i < Match.MSMatches.Count; i++)
         {
             MS = new MSMatch(Match.MSMatches[i]);
             MSMatches.Add(MS);
         }
     }
     else
     {
         MSMatches = null;
     }
 }
Exemplo n.º 4
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        public void LoadMSMatches(List <QPeptide> Peptides)
        {
            iLog.Log("Loading Peak Shapes");
            iLog.RepProgress(0);

            for (int f = 0; f < Peptides[0].Matches.GetLength(0); f++)
            {
                int FileNumber = FileNumbers[f];

                SQLiteCommand Select = new SQLiteCommand(
                    "Select FileNumber, MascotScan, Charge, Score, MZ, RT, FirstIsotope, SecondIsotope, TimeCoeff " +
                    String.Format("From MSMatches Where FileNumber = {0} ", FileNumber) +
                    "Order by MascotScan,RT ", con);

                SQLiteDataReader Reader  = Select.ExecuteReader();
                MSMatch[]        Charges = new MSMatch[12];
                bool             flag    = true;

                Reader.Read();
                iLog.RepProgress(f * 100 / Peptides[0].Matches.GetLength(0));

                for (int i = 0; i < Peptides.Count; i++)
                {
                    while (Reader.GetInt32(1) < Peptides[i].MascotScan)
                    {
                        flag = Reader.Read();
                        if (!flag)
                        {
                            break;
                        }
                    }
                    if (!flag)
                    {
                        break;
                    }
                    while (Reader.GetInt32(1) == Peptides[i].MascotScan)
                    {
                        for (int j = 0; j < 12; j++)
                        {
                            Charges[j] = null;
                        }

                        FileNumber = Reader.GetInt32(0);
                        double RT = Reader.GetDouble(5);

                        while (Reader.GetInt32(0) == FileNumber &&
                               Reader.GetInt32(1) == Peptides[i].MascotScan &&
                               RT == Reader.GetDouble(5))
                        {
                            int Charge = Reader.GetInt32(2);
                            Charges[Charge]               = new MSMatch();
                            Charges[Charge].Score         = Reader.GetDouble(3);
                            Charges[Charge].MZ            = Reader.GetDouble(4);
                            Charges[Charge].RT            = Reader.GetDouble(5);
                            Charges[Charge].FirstIsotope  = Reader.GetDouble(6);
                            Charges[Charge].SecondIsotope = Reader.GetDouble(7);
                            Charges[Charge].TimeCoeff     = Reader.GetDouble(8);
                            flag = Reader.Read();
                            if (!flag)
                            {
                                break;
                            }
                        }
                        if (Charges[Peptides[i].Charge - 1] != null)
                        {
                            Charges[Peptides[i].Charge].LowerCharges = Charges[Peptides[i].Charge - 1];
                        }
                        if (Charges[Peptides[i].Charge + 1] != null)
                        {
                            Charges[Peptides[i].Charge].LowerCharges = Charges[Peptides[i].Charge + 1];
                        }
                        Peptides[i].Matches[f].MSMatches.Add(Charges[Peptides[i].Charge]);
                        if (!flag)
                        {
                            break;
                        }
                    }
                    if (!flag)
                    {
                        break;
                    }
                }
            }
        }
Exemplo n.º 5
0
        public void LoadMSMatches(List <QPeptide> Peptides)
        {
            iLog.Log("Loading Peak Shapes");
            iLog.RepProgress(0);
            int FileNumber;
            int BandID   = -1;
            int SampleID = 0;

            if (Bands < 0)
            {
                FileNumber = FileNumbers.Count;
            }
            else
            {
                FileNumber = BandList.GetLength(0) * BandList.GetLength(1);
            }


            for (int f = 0; f < FileNumber; f++)
            {
                int FileID;
                if (Bands < 0)
                {
                    FileID   = FileNumbers[f];
                    SampleID = f;
                }
                else
                {
                    FileID   = f;
                    BandID   = f / SampleNumber;
                    SampleID = f % SampleNumber;
                }

                SQLiteCommand Select = new SQLiteCommand(
                    "Select FileNumber, MascotScan, Charge, Score, MZ, RT, FirstIsotope, SecondIsotope, TimeCoeff " +
                    String.Format("From MSMatches Where FileNumber = {0} ", FileID) +
                    "Order by MascotScan,RT ", con);

                SQLiteDataReader Reader  = Select.ExecuteReader();
                MSMatch[]        Charges = new MSMatch[12];
                bool             flag    = true;

                Reader.Read();
                if (!Reader.HasRows)
                {
                    break;
                }
                iLog.RepProgress(f, FileNumber);


                for (int i = 0; i < Peptides.Count; i++)
                {
                    while (Peptides[i].BandID != BandID)
                    {
                        i++;
                        flag = (i < Peptides.Count);
                        if (!flag)
                        {
                            break;
                        }
                    }
                    if (!flag)
                    {
                        break;
                    }
                    while (Reader.GetInt32(1) < Peptides[i].MascotScan)
                    {
                        flag = Reader.Read();
                        if (!flag)
                        {
                            break;
                        }
                    }
                    if (!flag)
                    {
                        break;
                    }

                    while (Reader.GetInt32(1) == Peptides[i].MascotScan)
                    {
                        for (int j = 0; j < 12; j++)
                        {
                            Charges[j] = null;
                        }

                        //FileNumber = Reader.GetInt32(0);
                        double RT = Reader.GetDouble(5);

                        while (//Reader.GetInt32(0) == FileNumber &&
                            Reader.GetInt32(1) == Peptides[i].MascotScan &&
                            RT == Reader.GetDouble(5))
                        {
                            int Charge = Reader.GetInt32(2);
                            Charges[Charge]               = new MSMatch();
                            Charges[Charge].Score         = Reader.GetDouble(3);
                            Charges[Charge].MZ            = Reader.GetDouble(4);
                            Charges[Charge].RT            = Reader.GetDouble(5);
                            Charges[Charge].FirstIsotope  = Reader.GetDouble(6);
                            Charges[Charge].SecondIsotope = Reader.GetDouble(7);
                            Charges[Charge].TimeCoeff     = Reader.GetDouble(8);
                            flag = Reader.Read();
                            if (!flag)
                            {
                                break;
                            }
                        }
                        if (Charges[Peptides[i].Charge - 1] != null)
                        {
                            Charges[Peptides[i].Charge].LowerCharges = Charges[Peptides[i].Charge - 1];
                        }
                        if (Charges[Peptides[i].Charge + 1] != null)
                        {
                            //порпавить в версии 2.6 - должно быть:
                            Charges[Peptides[i].Charge].UpperCharges = Charges[Peptides[i].Charge + 1];
                        }
                        //Charges[Peptides[i].Charge].LowerCharges = Charges[Peptides[i].Charge+1];
                        Peptides[i].Matches[SampleID].MSMatches.Add(Charges[Peptides[i].Charge]);
                        if (!flag)
                        {
                            break;
                        }
                    }
                    if (!flag)
                    {
                        break;
                    }
                }
            }
        }
Exemplo n.º 6
0
        public QMatch FindBestScore(double MZ, int Charge, double IsoRatio, double MinRT, double MaxRT)
        {
            MSMatch First = null, Best = null;

            QMatch Res = new QMatch();

            Res.Clean();
            Res.MSMatches = new List <MSMatch>();

            double FirstIso = 0.0, SecondIso = 0.0;
            double BestScore = 0.0, fs = 0.0;
            int    BestIndex = 0;

            int    Scan  = 0;
            double AveRT = (MinRT + MaxRT) / 2;

            RawFile.ScanNumFromRT(AveRT, ref Scan);
            Scan = ms2index[Scan];

            //отступаем до минимального времени RT в массиве спектров
            double LowMZ = (MZ * Charge + (float)1.007277) / (Charge + 1);
            double HighMZ;

            if (Charge > 1)
            {
                HighMZ = (MZ * Charge - 1.007277) / (Charge - 1);
            }
            else
            {
                HighMZ = 0.0;
            }

            while (Scan > 0 && RawSpectra[Scan].RT >= MinRT)
            {
                Scan = IndexRev[Scan];
            }

            //цикл поиска лучшего
            while (Scan != -1 && RawSpectra[Scan].RT <= MaxRT)
            {
                if (Settings.Default.Deconvolution) //прихватываем другие зарядовые состояния
                {
                    First = FindMatchwithCharges(Scan, MZ, Charge, LowMZ, HighMZ);
                }
                else
                {
                    First = FindMatch(Scan, MZ, Charge);
                }

                //если не найден сам пик или его первый изотоп - сбрасываем
                if (First.Score == 0.0 || First.SecondIsotope == 0.0)
                {
                    Scan = IndexDir[Scan];
                    continue;
                }

                FirstIso = First.FirstIsotope +
                           (First.UpperCharges == null ? 0 : First.UpperCharges.FirstIsotope) +
                           (First.LowerCharges == null ? 0 : First.LowerCharges.FirstIsotope);
                SecondIso = First.SecondIsotope +
                            (First.UpperCharges == null ? 0 : First.UpperCharges.SecondIsotope) +
                            (First.LowerCharges == null ? 0 : First.LowerCharges.SecondIsotope);

                fs = SecondIso / FirstIso;

                double CurrentScore = First.Score +
                                      (First.UpperCharges == null ? 0 : First.UpperCharges.Score) +
                                      (First.LowerCharges == null ? 0 : First.LowerCharges.Score);

                //пик может распространяться за границы, но апекс должен быть внутри
                if (CurrentScore > BestScore && fs > IsoRatio * 0.5 && fs < IsoRatio * 2)
                {
                    BestScore = CurrentScore;
                    BestIndex = Scan;
                    Best      = First;
                }
                //переходим к следующему full-ms
                Scan = IndexDir[Scan];
            }

            if (BestScore == 0.0)
            {
                return(null);
            }

            //если хоть что-то нашли
            //добавляем наибольшее
            LowMZ = (Best.MZ * Charge + (float)1.007277) / (Charge + 1);
            if (Charge > 1)
            {
                HighMZ = (MZ * Charge - 1.007277) / (Charge - 1);
            }
            else
            {
                HighMZ = 0.0;
            }


            Res.ApexRT = Best.RT;
            Res.MSMatches.Add(Best);

            //берем сплошную область вокруг Best - вперед
            for (Scan = IndexDir[BestIndex]; Scan > 0; Scan = IndexDir[Scan])
            {
                if (Settings.Default.Deconvolution) //прихватываем другие зарядовые состояния
                {
                    First = FindMatchwithCharges(Scan, Best.MZ, Charge, LowMZ, HighMZ);
                }
                else
                {
                    First = FindMatch(Scan, Best.MZ, Charge);
                }

                if (First.Score == 0.0 || First.SecondIsotope == 0.0)
                {
                    Res.MSMatches.Add(First);
                    break;
                }
                fs = First.SecondIsotope / First.FirstIsotope;
                //включаем здесь контроль по соотношению изотопов
                //if (fs < IsoRatio*0.5 || fs > IsoRatio * 2 ){
                //    break;
                //}
                Res.MSMatches.Add(First);
            }

            //берем сплошную область вокруг Best - назад
            for (Scan = IndexRev[BestIndex]; Scan > 0; Scan = IndexRev[Scan])
            {
                if (Settings.Default.Deconvolution) //прихватываем другие зарядовые состояния
                {
                    First = FindMatchwithCharges(Scan, Best.MZ, Charge, LowMZ, HighMZ);
                }
                else
                {
                    First = FindMatch(Scan, Best.MZ, Charge);
                }

                if (First.Score == 0.0 || First.SecondIsotope == 0.0)
                {
                    Res.MSMatches.Add(First);
                    break;
                }
                fs = First.SecondIsotope / First.FirstIsotope;
                //включаем здесь контроль по соотношению изотопов
                //if (fs < IsoRatio*0.5 || fs > IsoRatio * 2 ){
                //    break;
                //}
                Res.MSMatches.Insert(0, First);
            }

            Res.Estimate(IsoRatio);
            Res.CleanUp();

            return(Res);
        }
Exemplo n.º 7
0
        public MSMatch FindMatch(int Scan, double MZ, int Charge)
        {
            MSMatch ret = new MSMatch();

            ret.Score         = 0.0;
            ret.FirstIsotope  = 0.0;
            ret.SecondIsotope = 0.0;
            ret.TimeCoeff     = RTCorrection?TimeCoefs[Scan]:1;

            double maxs = 0.0, curs, bestd, tk10low, tk10high;

            int i, t;

            int cur = ms2index[Scan];


            //ворота по массе
            double mmi = MZ * ((1000000.0 - Convert.ToDouble(Settings.Default.MassError)) / 1000000.0);
            double mma = MZ * ((1000000.0 + Convert.ToDouble(Settings.Default.MassError)) / 1000000.0);

            RawData Peaks = RawSpectra[cur];

            ret.RT = Peaks.RT;

            //Если сразу ясно что мы за пределами поиска

            int LowerIndex = FindMassAbove(Peaks, mmi);
            int UpperIndex = FindMassBelow(Peaks, mma);

            if (UpperIndex == -1 || LowerIndex == -1 || LowerIndex > UpperIndex)
            {
                return(ret);
            }

            while (LowerIndex <= UpperIndex)     //for all masses that match

            {
                if (hasPreviousIsotope(Peaks, LowerIndex, Charge))             //skip this mass if Seq turns out Seq's a part of another peak
                {
                    LowerIndex++;
                    continue;
                }

                curs = Peaks.Data[LowerIndex].Intensity;

                tk10low = 0.0; tk10high = 0.0;


                for (i = 1; i < 3; ++i)
                {
                    double maxs2 = Peaks.Data[LowerIndex].Mass + (1.003 / (double)Charge) * (double)i;

                    double mmi2 = maxs2 * ((1000000.0 - Convert.ToDouble(Settings.Default.MassError)) / 1000000.0);
                    double mma2 = maxs2 * ((1000000.0 + Convert.ToDouble(Settings.Default.MassError)) / 1000000.0);

                    int LowerIndex2 = FindMassAbove(Peaks, mmi2);
                    int UpperIndex2 = FindMassBelow(Peaks, mma2);

                    if (LowerIndex2 > UpperIndex2 || LowerIndex2 == -1)  //ничего не нашли - ничего и не делаем
                    {
                        continue;
                    }

                    bestd = maxs2;
                    while (LowerIndex2 < UpperIndex2)   //если больше одного - ищем самый близкий к целевой массе
                    {
                        if (Math.Abs(maxs2 - Peaks.Data[LowerIndex2].Mass) < bestd)
                        {
                            bestd = Math.Abs(maxs2 - Peaks.Data[LowerIndex2].Mass);
                            t     = LowerIndex2;
                        }
                        LowerIndex2++;
                    }
                    if (i == 1)
                    {
                        tk10low  = curs;
                        tk10high = Peaks.Data[LowerIndex2].Intensity;
                    }
                    curs += Peaks.Data[LowerIndex2].Intensity;
                }

                if (maxs < curs)
                {
                    maxs              = curs;
                    ret.Score         = curs;
                    ret.MZ            = Peaks.Data[LowerIndex].Mass;
                    ret.RT            = Peaks.RT;
                    ret.FirstIsotope  = tk10low;
                    ret.SecondIsotope = tk10high;
                }
                LowerIndex++;
            }

            if (RTCorrection)
            {
                ret.Score *= TimeCoefs[Scan];
            }

            if (ESICorrection)
            {
                ret.Score = ret.Score / ESICurrents[Scan];
            }

            if (ret.SecondIsotope == 0.0)
            {
                ret.Score = 0.0;
            }
            return(ret);
        }