public static void WriteSnippets()
{
// Get directories to read and write from
String[] dirReadWrite = GetReadWriteDirectories();
String dataDir = dirReadWrite[0];
String writeDir = dirReadWrite[1];
// Loading CV file
CVFile cvf = LoadCVFile(dataDir);
// Getting list of CVs (3 CVs probably)
List <CVBasedQuestionList> cvList = cvf.CVBasedQuestionList;
// For each CV
for (int i = 0; i < cvList.Count; i++)
{
List <CVBasedQuestion> snippetList = cvList[i].CVBasedQuestions; // get list of snippets (4)
// For each snippet in CV
for (int j = 0; j < snippetList.Count; j++)
{
// start and end times
long start = snippetList[j].TimeStamp; long end = snippetList[j].CompletedTimeStamp;
EEGDataIO dataIO = new EEGDataIO(dataDir, GetExpStartEnd(dataDir)[0]);
dataIO.LoadData(start, end);
dataIO.WriteToMat(writeDir + "CV_" + (i + 1) + "_snippet_" + (j + 1) + ".mat");
}
}
}
public static void GenerateSnippetEvents(String dataDir, String writeDir)
{
// Generates epoch/event times for CV snippets
// Default length is 1s, overlap 0.5s
// So e.g. for 2s snippet, there will be 3 epochs
// Output is tab-separated .txt file (for import to EEGLAB)
// Loading CV file
CVFile cvf = LoadCVFile(dataDir);
// Getting list of CVs (3 CVs probably)
List <CVBasedQuestionList> cvList = cvf.CVBasedQuestionList;
// File string
String eventString = "latency\ttype\tcv\tsection\tenum";
String[] type = { "start", "during", "during", "during", "during", "during", "during" };
// For each CV
for (int i = 0; i < cvList.Count; i++)
{
List <CVBasedQuestion> snippetList = cvList[i].CVBasedQuestions; // get list of snippets (4)
// For each snippet in CV
for (int j = 0; j < snippetList.Count; j++)
{
// start timestamp, relative to experiment start; in seconds
double start = Convert.ToDouble(snippetList[j].TimeStamp) / 1000;
if (j == 0 || j == 1)
{
// 2 seconds; 3 snippets
for (int k = 0; k < 3; k++)
{
eventString += "\r\n" + (start + k * 0.5) + "\t" + type[k] + "\t" + (i + 1) + "\t" + (j + 1) + "\t" + (k + 1);
}
}
else if (j == 2 || j == 3)
{
// 3 seconds; 5 snippets
for (int k = 0; k < 5; k++)
{
eventString += "\r\n" + (start + k * 0.5) + "\t" + type[k] + "\t" + (i + 1) + "\t" + (j + 1) + "\t" + (k + 1);
}
}
}
}
// Writing to file
System.IO.File.WriteAllText(writeDir + @"eventtable.txt", eventString);
}
