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/* TA-LIB Copyright (c) 1999-2007, Mario Fortier | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or | |
* without modification, are permitted provided that the following | |
* conditions are met: | |
* | |
* - Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* | |
* - Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in | |
* the documentation and/or other materials provided with the | |
* distribution. | |
* | |
* - Neither name of author nor the names of its contributors | |
* may be used to endorse or promote products derived from this | |
* software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
* REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | |
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
/* List of contributors: | |
* | |
* Initial Name/description | |
* ------------------------------------------------------------------- | |
* MF Mario Fortier | |
* | |
* | |
* Change history: | |
* | |
* MMDDYY BY Description | |
* ------------------------------------------------------------------- | |
* 112400 MF Template creation. | |
* 052603 MF Adapt code to compile with .NET Managed C++ | |
* | |
*/ | |
/**** START GENCODE SECTION 1 - DO NOT DELETE THIS LINE ****/ | |
/* All code within this section is automatically | |
* generated by gen_code. Any modification will be lost | |
* next time gen_code is run. | |
*/ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ namespace TicTacTec { namespace TA { namespace Library { | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ int Core::AtrLookback( int optInTimePeriod ) /* From 1 to 100000 */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ public int atrLookback( int optInTimePeriod ) /* From 1 to 100000 */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ int TA_ATR_Lookback( int optInTimePeriod ) /* From 1 to 100000 */ | |
/* Generated */ | |
/* Generated */ | |
/**** END GENCODE SECTION 1 - DO NOT DELETE THIS LINE ****/ | |
{ | |
/* insert local variable here */ | |
/**** START GENCODE SECTION 2 - DO NOT DELETE THIS LINE ****/ | |
/* Generated */ | |
/* Generated */ /* min/max are checked for optInTimePeriod. */ | |
/* Generated */ if( (int)optInTimePeriod == TA_INTEGER_DEFAULT ) | |
/* Generated */ optInTimePeriod = 14; | |
/* Generated */ else if( ((int)optInTimePeriod < 1) || ((int)optInTimePeriod > 100000) ) | |
/* Generated */ return -1; | |
/* Generated */ | |
/* Generated */ | |
/**** END GENCODE SECTION 2 - DO NOT DELETE THIS LINE ****/ | |
/* insert lookback code here. */ | |
/* The ATR lookback is the sum of: | |
* 1 + (optInTimePeriod - 1) | |
* | |
* Where 1 is for the True Range, and | |
* (optInTimePeriod-1) is for the simple | |
* moving average. | |
*/ | |
return optInTimePeriod + TA_GLOBALS_UNSTABLE_PERIOD(TA_FUNC_UNST_ATR,Atr); | |
} | |
/**** START GENCODE SECTION 3 - DO NOT DELETE THIS LINE ****/ | |
/* | |
* TA_ATR - Average True Range | |
* | |
* Input = High, Low, Close | |
* Output = double | |
* | |
* Optional Parameters | |
* ------------------- | |
* optInTimePeriod:(From 1 to 100000) | |
* Number of period | |
* | |
* | |
*/ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ enum class Core::RetCode Core::Atr( int startIdx, | |
/* Generated */ int endIdx, | |
/* Generated */ SubArray^ inHigh, | |
/* Generated */ SubArray^ inLow, | |
/* Generated */ SubArray^ inClose, | |
/* Generated */ int optInTimePeriod, /* From 1 to 100000 */ | |
/* Generated */ [Out]int% outBegIdx, | |
/* Generated */ [Out]int% outNBElement, | |
/* Generated */ cli::array<double>^ outReal ) | |
/* Generated */ | |
/* Generated */ enum class Core::RetCode Core::Atr( int startIdx, | |
/* Generated */ int endIdx, | |
/* Generated */ cli::array<double>^ inHigh, | |
/* Generated */ cli::array<double>^ inLow, | |
/* Generated */ cli::array<double>^ inClose, | |
/* Generated */ int optInTimePeriod, /* From 1 to 100000 */ | |
/* Generated */ [Out]int% outBegIdx, | |
/* Generated */ [Out]int% outNBElement, | |
/* Generated */ cli::array<double>^ outReal ) | |
/* Generated */ | |
/* Generated */ public RetCode atr( int startIdx, | |
/* Generated */ int endIdx, | |
/* Generated */ double inHigh[], | |
/* Generated */ double inLow[], | |
/* Generated */ double inClose[], | |
/* Generated */ int optInTimePeriod, /* From 1 to 100000 */ | |
/* Generated */ MInteger outBegIdx, | |
/* Generated */ MInteger outNBElement, | |
/* Generated */ double outReal[] ) | |
/* Generated */ | |
/* Generated */ TA_RetCode TA_ATR( int startIdx, | |
/* Generated */ int endIdx, | |
/* Generated */ const double inHigh[], | |
/* Generated */ const double inLow[], | |
/* Generated */ const double inClose[], | |
/* Generated */ int optInTimePeriod, /* From 1 to 100000 */ | |
/* Generated */ int *outBegIdx, | |
/* Generated */ int *outNBElement, | |
/* Generated */ double outReal[] ) | |
/* Generated */ | |
/**** END GENCODE SECTION 3 - DO NOT DELETE THIS LINE ****/ | |
{ | |
/* Insert local variables here. */ | |
ENUM_DECLARATION(RetCode) retCode; | |
int outIdx, today, lookbackTotal; | |
int nbATR; | |
VALUE_HANDLE_INT(outBegIdx1); | |
VALUE_HANDLE_INT(outNbElement1); | |
double prevATR; | |
ARRAY_REF( tempBuffer ); | |
ARRAY_LOCAL(prevATRTemp,1); | |
/**** START GENCODE SECTION 4 - DO NOT DELETE THIS LINE ****/ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ /* Validate the requested output range. */ | |
/* Generated */ if( startIdx < 0 ) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_OUT_OF_RANGE_START_INDEX,OutOfRangeStartIndex); | |
/* Generated */ if( (endIdx < 0) || (endIdx < startIdx)) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_OUT_OF_RANGE_END_INDEX,OutOfRangeEndIndex); | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ /* Verify required price component. */ | |
/* Generated */ if(!inHigh||!inLow||!inClose) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam); | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ /* min/max are checked for optInTimePeriod. */ | |
/* Generated */ if( (int)optInTimePeriod == TA_INTEGER_DEFAULT ) | |
/* Generated */ optInTimePeriod = 14; | |
/* Generated */ else if( ((int)optInTimePeriod < 1) || ((int)optInTimePeriod > 100000) ) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam); | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ if( !outReal ) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam); | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/**** END GENCODE SECTION 4 - DO NOT DELETE THIS LINE ****/ | |
/* Average True Range is the greatest of the following: | |
* | |
* val1 = distance from today's high to today's low. | |
* val2 = distance from yesterday's close to today's high. | |
* val3 = distance from yesterday's close to today's low. | |
* | |
* These value are averaged for the specified period using | |
* Wilder method. This method have an unstable period comparable | |
* to and Exponential Moving Average (EMA). | |
*/ | |
VALUE_HANDLE_DEREF_TO_ZERO(outBegIdx); | |
VALUE_HANDLE_DEREF_TO_ZERO(outNBElement); | |
/* Adjust startIdx to account for the lookback period. */ | |
lookbackTotal = LOOKBACK_CALL(ATR)( optInTimePeriod ); | |
if( startIdx < lookbackTotal ) | |
startIdx = lookbackTotal; | |
/* Make sure there is still something to evaluate. */ | |
if( startIdx > endIdx ) | |
return ENUM_VALUE(RetCode,TA_SUCCESS,Success); | |
/* Trap the case where no smoothing is needed. */ | |
if( optInTimePeriod <= 1 ) | |
{ | |
/* No smoothing needed. Just do a TRANGE. */ | |
return FUNCTION_CALL(TRANGE)( startIdx, endIdx, | |
inHigh, inLow, inClose, | |
outBegIdx, outNBElement, outReal ); | |
} | |
/* Allocate an intermediate buffer for TRANGE. */ | |
ARRAY_ALLOC(tempBuffer, lookbackTotal+(endIdx-startIdx)+1 ); | |
/* Do TRANGE in the intermediate buffer. */ | |
retCode = FUNCTION_CALL(TRANGE)( (startIdx-lookbackTotal+1), endIdx, | |
inHigh, inLow, inClose, | |
VALUE_HANDLE_OUT(outBegIdx1), VALUE_HANDLE_OUT(outNbElement1), | |
tempBuffer ); | |
if( retCode != ENUM_VALUE(RetCode,TA_SUCCESS,Success) ) | |
{ | |
ARRAY_FREE( tempBuffer ); | |
return retCode; | |
} | |
/* First value of the ATR is a simple Average of | |
* the TRANGE output for the specified period. | |
*/ | |
retCode = FUNCTION_CALL_DOUBLE(INT_SMA)( optInTimePeriod-1, | |
optInTimePeriod-1, | |
tempBuffer, optInTimePeriod, | |
VALUE_HANDLE_OUT(outBegIdx1), VALUE_HANDLE_OUT(outNbElement1), | |
prevATRTemp ); | |
if( retCode != ENUM_VALUE(RetCode,TA_SUCCESS,Success) ) | |
{ | |
ARRAY_FREE( tempBuffer ); | |
return retCode; | |
} | |
prevATR = prevATRTemp[0]; | |
/* Subsequent value are smoothed using the | |
* previous ATR value (Wilder's approach). | |
* 1) Multiply the previous ATR by 'period-1'. | |
* 2) Add today TR value. | |
* 3) Divide by 'period'. | |
*/ | |
today = optInTimePeriod; | |
outIdx = TA_GLOBALS_UNSTABLE_PERIOD(TA_FUNC_UNST_ATR,Atr); | |
/* Skip the unstable period. */ | |
while( outIdx != 0 ) | |
{ | |
prevATR *= optInTimePeriod - 1; | |
prevATR += tempBuffer[today++]; | |
prevATR /= optInTimePeriod; | |
outIdx--; | |
} | |
/* Now start to write the final ATR in the caller | |
* provided outReal. | |
*/ | |
outIdx = 1; | |
outReal[0] = prevATR; | |
/* Now do the number of requested ATR. */ | |
nbATR = (endIdx - startIdx)+1; | |
while( --nbATR != 0 ) | |
{ | |
prevATR *= optInTimePeriod - 1; | |
prevATR += tempBuffer[today++]; | |
prevATR /= optInTimePeriod; | |
outReal[outIdx++] = prevATR; | |
} | |
VALUE_HANDLE_DEREF(outBegIdx) = startIdx; | |
VALUE_HANDLE_DEREF(outNBElement) = outIdx; | |
ARRAY_FREE( tempBuffer ); | |
return retCode; | |
} | |
/**** START GENCODE SECTION 5 - DO NOT DELETE THIS LINE ****/ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ enum class Core::RetCode Core::Atr( int startIdx, | |
/* Generated */ int endIdx, | |
/* Generated */ cli::array<float>^ inHigh, | |
/* Generated */ cli::array<float>^ inLow, | |
/* Generated */ cli::array<float>^ inClose, | |
/* Generated */ int optInTimePeriod, /* From 1 to 100000 */ | |
/* Generated */ [Out]int% outBegIdx, | |
/* Generated */ [Out]int% outNBElement, | |
/* Generated */ cli::array<double>^ outReal ) | |
/* Generated */ | |
/* Generated */ public RetCode atr( int startIdx, | |
/* Generated */ int endIdx, | |
/* Generated */ float inHigh[], | |
/* Generated */ float inLow[], | |
/* Generated */ float inClose[], | |
/* Generated */ int optInTimePeriod, /* From 1 to 100000 */ | |
/* Generated */ MInteger outBegIdx, | |
/* Generated */ MInteger outNBElement, | |
/* Generated */ double outReal[] ) | |
/* Generated */ | |
/* Generated */ TA_RetCode TA_S_ATR( int startIdx, | |
/* Generated */ int endIdx, | |
/* Generated */ const float inHigh[], | |
/* Generated */ const float inLow[], | |
/* Generated */ const float inClose[], | |
/* Generated */ int optInTimePeriod, /* From 1 to 100000 */ | |
/* Generated */ int *outBegIdx, | |
/* Generated */ int *outNBElement, | |
/* Generated */ double outReal[] ) | |
/* Generated */ | |
/* Generated */ { | |
/* Generated */ ENUM_DECLARATION(RetCode) retCode; | |
/* Generated */ int outIdx, today, lookbackTotal; | |
/* Generated */ int nbATR; | |
/* Generated */ VALUE_HANDLE_INT(outBegIdx1); | |
/* Generated */ VALUE_HANDLE_INT(outNbElement1); | |
/* Generated */ double prevATR; | |
/* Generated */ ARRAY_REF( tempBuffer ); | |
/* Generated */ ARRAY_LOCAL(prevATRTemp,1); | |
/* Generated */ | |
/* Generated */ if( startIdx < 0 ) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_OUT_OF_RANGE_START_INDEX,OutOfRangeStartIndex); | |
/* Generated */ if( (endIdx < 0) || (endIdx < startIdx)) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_OUT_OF_RANGE_END_INDEX,OutOfRangeEndIndex); | |
/* Generated */ | |
/* Generated */ if(!inHigh||!inLow||!inClose) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam); | |
/* Generated */ | |
/* Generated */ if( (int)optInTimePeriod == TA_INTEGER_DEFAULT ) | |
/* Generated */ optInTimePeriod = 14; | |
/* Generated */ else if( ((int)optInTimePeriod < 1) || ((int)optInTimePeriod > 100000) ) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam); | |
/* Generated */ | |
/* Generated */ if( !outReal ) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam); | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ VALUE_HANDLE_DEREF_TO_ZERO(outBegIdx); | |
/* Generated */ VALUE_HANDLE_DEREF_TO_ZERO(outNBElement); | |
/* Generated */ lookbackTotal = LOOKBACK_CALL(ATR)( optInTimePeriod ); | |
/* Generated */ if( startIdx < lookbackTotal ) | |
/* Generated */ startIdx = lookbackTotal; | |
/* Generated */ if( startIdx > endIdx ) | |
/* Generated */ return ENUM_VALUE(RetCode,TA_SUCCESS,Success); | |
/* Generated */ if( optInTimePeriod <= 1 ) | |
/* Generated */ { | |
/* Generated */ return FUNCTION_CALL(TRANGE)( startIdx, endIdx, | |
/* Generated */ inHigh, inLow, inClose, | |
/* Generated */ outBegIdx, outNBElement, outReal ); | |
/* Generated */ } | |
/* Generated */ ARRAY_ALLOC(tempBuffer, lookbackTotal+(endIdx-startIdx)+1 ); | |
/* Generated */ retCode = FUNCTION_CALL(TRANGE)( (startIdx-lookbackTotal+1), endIdx, | |
/* Generated */ inHigh, inLow, inClose, | |
/* Generated */ VALUE_HANDLE_OUT(outBegIdx1), VALUE_HANDLE_OUT(outNbElement1), | |
/* Generated */ tempBuffer ); | |
/* Generated */ if( retCode != ENUM_VALUE(RetCode,TA_SUCCESS,Success) ) | |
/* Generated */ { | |
/* Generated */ ARRAY_FREE( tempBuffer ); | |
/* Generated */ return retCode; | |
/* Generated */ } | |
/* Generated */ retCode = FUNCTION_CALL_DOUBLE(INT_SMA)( optInTimePeriod-1, | |
/* Generated */ optInTimePeriod-1, | |
/* Generated */ tempBuffer, optInTimePeriod, | |
/* Generated */ VALUE_HANDLE_OUT(outBegIdx1), VALUE_HANDLE_OUT(outNbElement1), | |
/* Generated */ prevATRTemp ); | |
/* Generated */ if( retCode != ENUM_VALUE(RetCode,TA_SUCCESS,Success) ) | |
/* Generated */ { | |
/* Generated */ ARRAY_FREE( tempBuffer ); | |
/* Generated */ return retCode; | |
/* Generated */ } | |
/* Generated */ prevATR = prevATRTemp[0]; | |
/* Generated */ today = optInTimePeriod; | |
/* Generated */ outIdx = TA_GLOBALS_UNSTABLE_PERIOD(TA_FUNC_UNST_ATR,Atr); | |
/* Generated */ while( outIdx != 0 ) | |
/* Generated */ { | |
/* Generated */ prevATR *= optInTimePeriod - 1; | |
/* Generated */ prevATR += tempBuffer[today++]; | |
/* Generated */ prevATR /= optInTimePeriod; | |
/* Generated */ outIdx--; | |
/* Generated */ } | |
/* Generated */ outIdx = 1; | |
/* Generated */ outReal[0] = prevATR; | |
/* Generated */ nbATR = (endIdx - startIdx)+1; | |
/* Generated */ while( --nbATR != 0 ) | |
/* Generated */ { | |
/* Generated */ prevATR *= optInTimePeriod - 1; | |
/* Generated */ prevATR += tempBuffer[today++]; | |
/* Generated */ prevATR /= optInTimePeriod; | |
/* Generated */ outReal[outIdx++] = prevATR; | |
/* Generated */ } | |
/* Generated */ VALUE_HANDLE_DEREF(outBegIdx) = startIdx; | |
/* Generated */ VALUE_HANDLE_DEREF(outNBElement) = outIdx; | |
/* Generated */ ARRAY_FREE( tempBuffer ); | |
/* Generated */ return retCode; | |
/* Generated */ } | |
/* Generated */ | |
/* Generated */ | |
/* Generated */ }}} // Close namespace TicTacTec.TA.Lib | |
/* Generated */ | |
/**** END GENCODE SECTION 5 - DO NOT DELETE THIS LINE ****/ | |