Added support for OneOverK0 column, associated test (#896)

Co-authored-by: Nic Bollis <nbollis@comcast.net>

Author: Alexander-Sol

mzLib/Readers/InternalResults/IndividualResultRecords/SpectrumMatchFromTsv.cs

@@ -58,6 +58,7 @@ public abstract class SpectrumMatchFromTsv : IQuantifiableRecord
         public string NextResidue { get; protected set; }
         public string DecoyContamTarget { get; protected set; }
         public double? QValueNotch { get; protected set; }
+        public double? OneOverK0 { get; protected set; }
 
         public List<MatchedFragmentIon> VariantCrossingIons { get; protected set; }
 
@@ -171,6 +172,7 @@ protected SpectrumMatchFromTsv(string line, char[] split, Dictionary<string, int
             RetentionTime = (parsedHeader[SpectrumMatchFromTsvHeader.Ms2ScanRetentionTime] < 0) ? -1 : double.TryParse(spl[parsedHeader[SpectrumMatchFromTsvHeader.Ms2ScanRetentionTime]].Trim(), CultureInfo.InvariantCulture, out double rt) ? rt : -1;
             PEP = double.Parse(spl[parsedHeader[SpectrumMatchFromTsvHeader.PEP]].Trim(), CultureInfo.InvariantCulture);
             PEP_QValue = double.Parse(spl[parsedHeader[SpectrumMatchFromTsvHeader.PEP_QValue]].Trim(), CultureInfo.InvariantCulture);
+            OneOverK0 = (parsedHeader[SpectrumMatchFromTsvHeader.OneOverK0] < 0) ? null : (double?)double.Parse(spl[parsedHeader[SpectrumMatchFromTsvHeader.OneOverK0]].Trim(), CultureInfo.InvariantCulture);
             VariantCrossingIons = FindVariantCrossingIons();
             SpectralAngle = (parsedHeader[SpectrumMatchFromTsvHeader.SpectralAngle] < 0)
                 ? null
@@ -251,6 +253,7 @@ protected SpectrumMatchFromTsv(SpectrumMatchFromTsv psm, string fullSequence, in
             DecoyContamTarget = psm.DecoyContamTarget;
             QValueNotch = psm.QValueNotch;
             RetentionTime = psm.RetentionTime;
+            OneOverK0 = psm.OneOverK0;
         }
 
         /// <summary>

mzLib/Readers/InternalResults/ResultFiles/SpectrumMatchTsvReader.cs

@@ -140,6 +140,7 @@ public static Dictionary<string, int> ParseHeader(string header)
             parsedHeader.Add(SpectrumMatchFromTsvHeader.PrecursorIntensity, Array.IndexOf(spl, SpectrumMatchFromTsvHeader.PrecursorIntensity));
             parsedHeader.Add(SpectrumMatchFromTsvHeader.PrecursorMz, Array.IndexOf(spl, SpectrumMatchFromTsvHeader.PrecursorMz));
             parsedHeader.Add(SpectrumMatchFromTsvHeader.PrecursorMass, Array.IndexOf(spl, SpectrumMatchFromTsvHeader.PrecursorMass));
+            parsedHeader.Add(SpectrumMatchFromTsvHeader.OneOverK0, Array.IndexOf(spl, SpectrumMatchFromTsvHeader.OneOverK0));
             parsedHeader.Add(SpectrumMatchFromTsvHeader.Score, Array.IndexOf(spl, SpectrumMatchFromTsvHeader.Score));
             parsedHeader.Add(SpectrumMatchFromTsvHeader.DeltaScore, Array.IndexOf(spl, SpectrumMatchFromTsvHeader.DeltaScore));
             parsedHeader.Add(SpectrumMatchFromTsvHeader.Notch, Array.IndexOf(spl, SpectrumMatchFromTsvHeader.Notch));