public static bool IsShootingStar(Candlestick previous, Candlestick current)
{
return(_isBullish(previous) &&
_isBearish(current) &&
_isGapUp(previous, current) &&
_isInvertedHammerLike(current));
}
public static bool IsHangingMan(Candlestick previous, Candlestick current)
{
return(_isBullish(previous) &&
_isBearish(current) &&
_isGapUp(previous, current) &&
_isHammerLike(current));
}
private static bool _isHammerLike(Candlestick candle)
{
return((((candle.HighPrice - candle.LowPrice) > 3 * (candle.OpenPrice - candle.ClosePrice)) &&
((candle.ClosePrice - candle.LowPrice) / (.001 + candle.HighPrice - candle.LowPrice) > 0.6) &&
((candle.OpenPrice - candle.LowPrice) / (.001 + candle.HighPrice - candle.LowPrice) > 0.6)) && ((_bodyLen(candle) * 100 / _tailLen(candle)) >= 25 && (_bodyLen(candle) * 100 / _tailLen(candle)) >= 50));
//return _tailLen(candle) > _bodyLen(candle) * 2 &&
// _wickLen(candle) < _bodyLen(candle);
}
static void Main(string[] args)
{
string connectionString =
"Data Source=.;Initial Catalog=Candlesticks_v01;"
+ "Integrated Security=true";
// Provide the query string with a parameter placeholder.
string queryString =
"SELECT top(1000) * from cndl.Candlesticks "
+ "WHERE IntervalID=@interval "
+ "AND stockid = 294 ORDER BY [opentime] DESC ";
int paramValue = 6;
var list = new List <Candlestick>();
using SqlConnection connection =
new SqlConnection(connectionString);
SqlCommand command = new SqlCommand(queryString, connection);
command.Parameters.AddWithValue("@interval", paramValue);
try
{
connection.Open();
SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
var candle = new Candlestick();
var ddd = double.Parse(reader["OpenPrice"].ToString());
candle.Id = long.Parse(reader["Id"].ToString() ?? string.Empty);
candle.OpenPrice = double.Parse(reader["OpenPrice"].ToString() ?? string.Empty);
candle.ClosePrice = double.Parse(reader["ClosePrice"].ToString() ?? string.Empty);
candle.HighPrice = double.Parse(reader["HighPrice"].ToString() ?? string.Empty);
candle.LowPrice = double.Parse(reader["LowPrice"].ToString() ?? string.Empty);
if (CandleDetector.IsHammer(candle))
{
DoUpdate(candle.Id);
}
}
reader.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.ReadLine();
}
private static bool _isGap(Candlestick lowest, Candlestick upmost)
{
return(Math.Max(lowest.OpenPrice, lowest.ClosePrice) < Math.Min(upmost.OpenPrice, upmost.ClosePrice));
}
private static bool _isEngulfed(Candlestick shortest, Candlestick longest)
{
return(_bodyLen(shortest) < _bodyLen(longest));
}
private static bool _isInvertedHammerLike(Candlestick candle)
{
return(_wickLen(candle) > (_bodyLen(candle) * 2) &&
_tailLen(candle) < _bodyLen(candle));
}
private static bool _isBearish(Candlestick candle)
{
return(candle.OpenPrice > candle.ClosePrice);
}
private static double _tailLen(Candlestick candle)
{
return(Math.Min(candle.OpenPrice, candle.ClosePrice) - candle.LowPrice);
}
//List<Candlestick> findPattern(List<Candlestick> dataArray, Func<List<Candlestick>, bool> callback)
//{
// var upperBound = (dataArray.Count - callback.length) + 1;
// var matches = new List<Candlestick>();
// for (var i = 0; i < upperBound; i++)
// {
// var args = new List<Candlestick>();
// // Read the leftmost j values at position i in array.
// // The j values are callback arguments.
// for (var j = 0; j < callback.; j++)
// {
// args.Add(dataArray[i + j]);
// }
// // Destructure args and find matches.
// if (callback(args))
// {
// matches.Add(args[1]);
// }
// }
// return matches;
//}
// Boolean pattern detection.
// @public
public static bool IsHammer(Candlestick candle)
{
return //_isBullish(candle) &&
(_isHammerLike(candle));
}
private static double _bodyLen(Candlestick candle)
{
return(Math.Abs(candle.OpenPrice - candle.ClosePrice));
}
public static bool IsBearishKicker(Candlestick previous, Candlestick current)
{
return(_isBullish(previous) &&
_isBearish(current) &&
_isGapDown(previous, current));
}
public static bool IsBearishHarami(Candlestick previous, Candlestick current)
{
return(_isBullish(previous) &&
_isBearish(current) &&
_isEngulfed(current, previous));
}
public static bool IsBearishEngulfing(Candlestick previous, Candlestick current)
{
return(_isBullish(previous) &&
_isBearish(current) &&
_isEngulfed(previous, current));
}
public static bool IsInvertedHammer(Candlestick candle)
{
return(_isBearish(candle) &&
_isInvertedHammerLike(candle));
}
private static bool _isGapUp(Candlestick previous, Candlestick current)
{
return(_isGap(previous, current));
}
private static bool _isGapDown(Candlestick previous, Candlestick current)
{
return(_isGap(current, previous));
}
private static double _wickLen(Candlestick candle)
{
return(candle.HighPrice - Math.Max(candle.OpenPrice, candle.ClosePrice));
}