public static List <XYData> Bin(List <XYData> data, double lowMass, double highMass, double binSize)
{
var newData = new List <XYData>();
var total = Convert.ToInt32((highMass - lowMass) / binSize);
for (var i = 0; i < total; i++)
{
var part = new XYData(lowMass + (Convert.ToDouble(i) * binSize), 0.0);
newData.Add(part);
}
for (var i = 0; i < data.Count; i++)
{
var intensity = data[i].Y;
var bin = Math.Min(total - 1, System.Convert.ToInt32((data[i].X - lowMass) / binSize));
try
{
newData[bin].Y += intensity;
}
catch (Exception ex)
{
throw ex;
}
}
return(newData);
}
/// <summary>
/// Finds the XIC based on the m/z and scan parameters.
/// </summary>
/// <param name="mz"></param>
/// <param name="scan"></param>
/// <returns></returns>
public List<PNNLOmics.Data.XYData> FindXic(double mz, int scan, bool shouldSmooth)
{
LcmsFeatureTarget target = new LcmsFeatureTarget();
target.ID = 0;
target.MZ = mz;
target.ScanLCTarget = scan;
target.ElutionTimeUnit = Globals.ElutionTimeUnit.ScanNum;
m_run.CurrentMassTag = target;
var result = m_run.ResultCollection.GetTargetedResult(m_run.CurrentMassTag);
double chromPeakGeneratorTolInPPM = MzPpmWindow;
Globals.ChromatogramGeneratorMode chromGeneratorMode = Globals.ChromatogramGeneratorMode.MZ_BASED;
var chromGen = new PeakChromatogramGenerator( chromPeakGeneratorTolInPPM,
chromGeneratorMode);
chromGen.NETWindowWidthForNonAlignedData = Convert.ToSingle(NetWindow);
int pointsToSmooth = 5;
var chromSmoother = new SavitzkyGolaySmoother(pointsToSmooth, 2);
double chromPeakDetectorPeakBR = 1;
double chromPeakDetectorSigNoise = 1;
var chromPeakDetector = new ChromPeakDetector( chromPeakDetectorPeakBR,
chromPeakDetectorSigNoise);
ChromPeakSelectorParameters chromPeakSelectorParameters = new ChromPeakSelectorParameters();
var chromPeakSelector = new BasicChromPeakSelector(chromPeakSelectorParameters);
//this generates an extracted ion chromatogram
// Since we are not using the built in generator,
chromGen.Execute(m_run.ResultCollection);
//this smooths the data - very important step!
if (shouldSmooth)
{
chromSmoother.Execute(m_run.ResultCollection);
}
//this detects peaks within an extracted ion chromatogram
chromPeakDetector.Execute(m_run.ResultCollection);
//this selects the peak
chromPeakSelector.Parameters.PeakSelectorMode = Globals.PeakSelectorMode.ClosestToTarget;
chromPeakSelector.Execute(m_run.ResultCollection);
//Here's the chromatogram data...
List<PNNLOmics.Data.XYData> data = new List<PNNLOmics.Data.XYData>();
for (int i = 0; i < m_run.XYData.Xvalues.Length; i++)
{
PNNLOmics.Data.XYData datum = new PNNLOmics.Data.XYData(m_run.XYData.Xvalues[i], m_run.XYData.Yvalues[i]);
data.Add(datum);
}
return data;
}