/// <summary>
/// Constructs sequence statistics by iterating through a list of sequences.
/// </summary>
/// <param name="sequences">The list of sequences to construct statistics for.</param>
internal SequenceStatistics(IList <ISequence> sequences)
{
_alphabet = sequences[0].Alphabet;
_countHash = new Dictionary <char, int>();
_totalCount = 0;
foreach (ISequence seq in sequences)
{
SequenceStatistics seqStats = seq.Statistics;
if (seqStats._alphabet != _alphabet)
{
throw new Exception("Cannot create statistics for list of sequences with different alphabets.");
}
foreach (char symbol in seqStats._countHash.Keys)
{
if (_countHash.ContainsKey(symbol))
{
_countHash[symbol] += seqStats._countHash[symbol];
}
else
{
_countHash.Add(symbol, seqStats._countHash[symbol]);
}
}
_totalCount += seqStats._totalCount;
}
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="that">The sequence statistics to copy from.</param>
internal SequenceStatistics(SequenceStatistics that)
{
_alphabet = that._alphabet;
_countHash = new Dictionary <char, int>();
foreach (char symbol in that._countHash.Keys)
{
_countHash.Add(symbol, that._countHash[symbol]);
}
_totalCount = that._totalCount;
}
