private static double buildHistograms(InputParser inputParser, HistogramComputer histogramComputer,
KnuthPosteriorComputer knuthPosteriorComputer, string filename, int spaceDimension, int pointNO,
double[] minElems, double[] maxElems, int serverNO, int upperBoundOfPostVals,
double[] posteriorValues, double[] centralDiffs, int initialHistRes, List<DataRow> data)
{
double posteriorSum = 0.0;
for (int histogramResolution = initialHistRes; histogramResolution <= upperBoundOfPostVals;
histogramResolution++)
{
int[] binHefts = histogramComputer.buildHistogram(histogramResolution, data, spaceDimension,
minElems, maxElems);
posteriorSum = innerBuildHistograms(inputParser, knuthPosteriorComputer, filename, spaceDimension,
pointNO, serverNO, upperBoundOfPostVals, posteriorValues, centralDiffs, initialHistRes, posteriorSum,
histogramResolution, binHefts);
}
return posteriorSum;
}
private static double buildHistogramsStreamMode(InputParser inputParser, HistogramComputer histogramComputer,
KnuthPosteriorComputer knuthPosteriorComputer, string filename, int spaceDimension, int pointNO,
double[] minElems, double[] maxElems, int serverNO, int upperBoundOfPostVals,
double[] posteriorValues, double[] centralDiffs, int initialHistRes)
{
double posteriorSum = 0.0;
for (int histogramResolution = initialHistRes; histogramResolution <= upperBoundOfPostVals;
histogramResolution++)
{
int[] binHefts = new int[(int)Math.Pow(histogramResolution, spaceDimension)];
var lines = File.ReadLines(filename);
int lineIdx = 0;
foreach (var line in lines)
{
string[] lineParts = line.Split(InputParser.delimiter);
if (lineParts.Length < spaceDimension)
throw new ArgumentException("The line " + lineIdx + " has invalid dimension!");
else if (lineParts.Length > spaceDimension)
{
string[] tempLineParts = new string[spaceDimension];
for (int idx = 0; idx < spaceDimension; idx++)
{
tempLineParts[idx] = lineParts[idx];
}
lineParts = tempLineParts;
}
double[] coords = new double[spaceDimension];
for (int coordIdx = 0; coordIdx < lineParts.Length; coordIdx++)
{
coords[coordIdx] = Double.Parse(lineParts[coordIdx], NumberStyles.Float,
CultureInfo.InvariantCulture);
}
histogramComputer.buildHistogramForDataRowTuple(histogramResolution, spaceDimension, minElems,
maxElems, binHefts, coords);
lineIdx++;
}
posteriorSum = innerBuildHistograms(inputParser, knuthPosteriorComputer, filename, spaceDimension,
pointNO, serverNO, upperBoundOfPostVals, posteriorValues, centralDiffs, initialHistRes, posteriorSum,
histogramResolution, binHefts);
}
return posteriorSum;
}
static void Main(string[] args)
{
InputParser inputParser = new InputParser();
HistogramComputer histogramComputer = new HistogramComputer();
KnuthPosteriorComputer knuthPosteriorComputer = new KnuthPosteriorComputer();
LMethod lMethod = new LMethod();
FurthestPointFromLineMethod furthestPointFromLineMethod = new FurthestPointFromLineMethod();
string filename;
int spaceDimension, pointNO, serverNO, upperBoundOfPostVals, initialHistRes;
double[] minElems, maxElems, posteriorValues, centralDiffs;
double posteriorSum;
Console.WriteLine("How would you like to execute histogram building? " +
"Would you like to apply stream mode?");
Console.WriteLine("(Please choose this mode only if you have prior information about " +
"object number and bounding box)");
bool streamMode = bool.Parse(Console.ReadLine());
if (streamMode)
{
handleStreamMode(inputParser, histogramComputer, knuthPosteriorComputer, out filename, out spaceDimension,
out pointNO, out serverNO, out upperBoundOfPostVals, out initialHistRes, out minElems, out maxElems,
out posteriorValues, out centralDiffs, out posteriorSum);
}
else
{
handleNormalMode(inputParser, histogramComputer, knuthPosteriorComputer, out filename, out spaceDimension,
out pointNO, out serverNO, out upperBoundOfPostVals, out initialHistRes, out minElems, out maxElems,
out posteriorValues, out centralDiffs, out posteriorSum);
}
writeOutStats(lMethod, furthestPointFromLineMethod, upperBoundOfPostVals, initialHistRes,
posteriorValues, centralDiffs, posteriorSum);
Console.WriteLine("Press any key to continue...");
Console.Read();
}
private static void handleStreamMode(InputParser inputParser, HistogramComputer histogramComputer,
KnuthPosteriorComputer knuthPosteriorComputer, out string filename, out int spaceDimension,
out int pointNO, out int serverNO, out int upperBoundOfPostVals, out int initialHistRes,
out double[] minElems, out double[] maxElems, out double[] posteriorValues, out double[] centralDiffs,
out double posteriorSum)
{
inputParser.parseInputFileStreamMode(out filename, out spaceDimension, out pointNO,
out minElems, out maxElems);
initializeVariables(inputParser, pointNO, out serverNO, out upperBoundOfPostVals, out posteriorValues,
out centralDiffs, out initialHistRes);
posteriorSum = buildHistogramsStreamMode(inputParser, histogramComputer, knuthPosteriorComputer,
filename, spaceDimension, pointNO, minElems, maxElems, serverNO, upperBoundOfPostVals,
posteriorValues, centralDiffs, initialHistRes);
}