private static void computeLocationClusters()
{
GPSAS_DestinationsFormInstance.SetStatusText("Clustering area");
areaID = 0;
// For each data point in the array of data
for (int i = 0; i < arrData.Length; i++)
{
// Update progress bar
GPSAS_DestinationsFormInstance.UpdateProgressBarParse((int)Math.Round(((Double)i / (Double)arrData.Length) * 100));
// If the data point location has not been processed yet
if (arrData[i].AID == UNMARKED)
{
// Retrieve the indexes of the location based neighbors for this datapoint
List <int> neighborIndexes = retrieveAreaNeighbours(i);
// If the number of neighbors to this data point does not meet the num neighbors requirement, mark as NOISE
if (neighborIndexes.Count < MINPTS)
{
arrData[i].AID = NOISE;
}
else
{
// Increment cluster ID
areaID = areaID + 1;
// Mark each neighbor data point with the coresponding neighbor index
foreach (int index in neighborIndexes)
{
arrData[index].AID = areaID;
}
}
}
}
Logger.Log("There are this many area clusters: " + areaID.ToString());
}
/// <summary>
/// Reads the provided excel file into a data set.
/// </summary>
/// <param name="parentInstance">Instance of parent form</param>
/// <param name="fileName">File name to be parsed.</param>
public static void ReadData(GPSAS_DestinationsForm parentInstance, String fileName)
{
parentInstance.SetStatusText("Reading file");
// Create file stream
FileStream stream = File.Open(fileName, FileMode.Open, FileAccess.Read);
// Create excel reader instance
IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
// Column names ARE in first row, but they are needed to determine column names
excelReader.IsFirstRowAsColumnNames = false;
// Assign data to DataSet
DataSet dataSet = excelReader.AsDataSet();
// Clean up
excelReader.Close();
stream.Close();
// Parse data
parseDataSet(dataSet);
}
