// create electrode instance for each electrode name in list
public static void CreateElectrodes()
{
foreach (var name in ElectrodeNames)
{
var electrode = new Electrode(name);
Electrodes[name] = electrode;
}
}
public static void BandPeakDetection(ArrayList bandData, string trainingFreq)
{
bandData.RemoveAt(0);
var voteCount = 0;
for (int i = 0; i < FreqBandNames.Count; i++)
{
// band data header is output in the following format: (electrode name)/(band type)
var dataIndex = i;
var nameParts = FreqBandNames[i].Split('/');
var currElectrode = GetElectrodeByName(nameParts[0]);
var bandName = nameParts[1];
var currBand = GetBandByName(bandName, currElectrode);
var dataChunk = bandData[dataIndex].ToString().Trim();
var dataHasPeak = "false";
var stdDev = currBand.MovingStd;
if (Electrode.hasPeak(currBand, Convert.ToDouble(bandData[dataIndex]), isBand: true))
{
dataHasPeak = "true";
voteCount += 1;
// uncoment to indicate which electrode band fired
/* Console.WriteLine(currElectrode.Name);
* Console.WriteLine("!!! BANDDD");*/
}
// add current electrode's moving standard dev. to file output. Mark preload w/ -1.
if (Electrode.IsBandPreload)
{
dataChunk += $"/null/{dataHasPeak}/null/null/null/{trainingFreq}";
bandData[i] = dataChunk;
}
else
{
dataChunk += $"/{stdDev}/{dataHasPeak}/{currBand.MovingAvg}/{currBand.UpperBound}/{currBand.LowerBound}/{trainingFreq}";
bandData[i] = dataChunk;
}
}
if (voteCount >= 35)
{
Console.WriteLine($"Hnadle Blink BAND: {voteCount} Votes");
}
}
// helper function that returns current electrode
public static EEGData GetBandByName(string bandName, Electrode currElectrode)
{
// grab relevant eeg data
switch (bandName.Trim())
{
case "theta":
return(currElectrode.Theta);
case "alpha":
return(currElectrode.Alpha);
case "betaL":
return(currElectrode.BetaL);
case "betaH":
return(currElectrode.BetaH);
case "gamma":
return(currElectrode.Gamma);
}
// if band matches none of the above types
return(null);
}
public static void EEGPeakDetection(ArrayList eegData, string trainingFreq)
{
//copy current data feed so loop isn't messed up when adding calculations to eegData
var loopEEGData = eegData;
//vote count for blink decisions
var voteCount = 0;
for (int i = 0; i < NumberElectrodes; i++)
{
var currElectrode = GetElectrodeByName(ElectrodeNames[i]);
// i+3... because 2 is index where electrode data starts
var dataIndex = i + 3;
var dataChunk = loopEEGData[dataIndex].ToString().Trim();
var dataHasPeak = "false";
var stdDev = currElectrode.EEGRaw.MovingStd;
if (Electrode.hasPeak(currElectrode.EEGRaw, Convert.ToDouble(loopEEGData[dataIndex])))
{
dataHasPeak = "true";
voteCount += 1;
// uncomment to indicate which electrode fired
/* Console.WriteLine(ElectrodeNames[i]);
* Console.WriteLine("!!!");*/
}
// add current electrode's moving standard dev. to file output. Mark preload w/ 0.
if (Electrode.IsEEGPreLoad)
{
dataChunk += $"/null/{dataHasPeak}/null/null/null/{trainingFreq}";
}
else
{
dataChunk += $"/{stdDev}/{dataHasPeak}/{currElectrode.EEGRaw.MovingAvg}/{currElectrode.EEGRaw.UpperBound}/{currElectrode.EEGRaw.LowerBound}/{trainingFreq}";
}
eegData[dataIndex] = dataChunk;
}
var isPeak = voteCount >= ArtifactThresholdEEG;
/* if (isPeak) Console.WriteLine("Blinkkkkkkkkkkkk!");
* // collect votes across electrodes and time
* var isArtifact = ArtifactManager.IsArtifact(CurrPeak: isPeak);
* if (isArtifact)
* {
* Console.WriteLine($"--------- Artifact Detected. Last Votecout: {voteCount} -------------");
* }*/
// extend to multiple blinks
var isCtrlZ = ArtifactManager.IsArtifactCtrlZBinned(isPeak);
if (isCtrlZ)
{
Console.WriteLine("Ctrl-z Initiated.");
}
if (isCtrlZ && Classification.IsTyping)
{
Console.WriteLine("Ctrl-z Initiated.");
}
}