private void InitializeHistogram(List <double> probabilities)
{
histogram = new AliasHistogramTable();
// Aliases default to a self-reference.
histogram.Alias = new List <int>();
histogram.Alias.FillWithIndex(probabilities.Count);
// Scale probabilities to an average of 1.0
histogram.Probability = new List <double>(probabilities);
histogram.Probability.ForEach(probability => probability *= histogram.Probability.Count);
}
public void Load(string fileURI)
{
try
{
using (var file = File.Open(fileURI, FileMode.Open))
{
var binaryFormatter = new BinaryFormatter();
histogram = (AliasHistogramTable)binaryFormatter.Deserialize(file);
}
}
catch (IOException exception)
{
throw new IOException("Error accessing histogram file.", exception);
}
if (!histogram.IsValid())
{
throw new Exception("Histogram is invalid.");
}
}