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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 */ #if defined( _MANAGED )
/* Generated */ #include "TA-Lib-Core.h"
/* Generated */ #define TA_INTERNAL_ERROR(Id) (RetCode::InternalError)
/* Generated */ namespace TicTacTec { namespace TA { namespace Library {
/* Generated */ #elif defined( _JAVA )
/* Generated */ #include "ta_defs.h"
/* Generated */ #include "ta_java_defs.h"
/* Generated */ #define TA_INTERNAL_ERROR(Id) (RetCode.InternalError)
/* Generated */ #else
/* Generated */ #include <string.h>
/* Generated */ #include <math.h>
/* Generated */ #include "ta_func.h"
/* Generated */ #endif
/* Generated */
/* Generated */ #ifndef TA_UTILITY_H
/* Generated */ #include "ta_utility.h"
/* Generated */ #endif
/* Generated */
/* Generated */ #ifndef TA_MEMORY_H
/* Generated */ #include "ta_memory.h"
/* Generated */ #endif
/* Generated */
/* Generated */ #define TA_PREFIX(x) TA_##x
/* Generated */ #define INPUT_TYPE double
/* Generated */
/* Generated */ #if defined( _MANAGED )
/* Generated */ int Core::AtrLookback( int optInTimePeriod ) /* From 1 to 100000 */
/* Generated */
/* Generated */ #elif defined( _JAVA )
/* Generated */ public int atrLookback( int optInTimePeriod ) /* From 1 to 100000 */
/* Generated */
/* Generated */ #else
/* Generated */ int TA_ATR_Lookback( int optInTimePeriod ) /* From 1 to 100000 */
/* Generated */
/* Generated */ #endif
/**** END GENCODE SECTION 1 - DO NOT DELETE THIS LINE ****/
{
/* insert local variable here */
/**** START GENCODE SECTION 2 - DO NOT DELETE THIS LINE ****/
/* Generated */ #ifndef TA_FUNC_NO_RANGE_CHECK
/* 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 */ #endif /* TA_FUNC_NO_RANGE_CHECK */
/**** 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 */ #if defined( _MANAGED ) && defined( USE_SUBARRAY )
/* 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 */ #elif defined( _MANAGED )
/* 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 */ #elif defined( _JAVA )
/* 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 */ #else
/* 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 */ #endif
/**** 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 */ #ifndef TA_FUNC_NO_RANGE_CHECK
/* 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 */ #if !defined(_JAVA)
/* Generated */ /* Verify required price component. */
/* Generated */ if(!inHigh||!inLow||!inClose)
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */
/* Generated */ #endif /* !defined(_JAVA)*/
/* 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 */ #if !defined(_JAVA)
/* Generated */ if( !outReal )
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */
/* Generated */ #endif /* !defined(_JAVA) */
/* Generated */ #endif /* TA_FUNC_NO_RANGE_CHECK */
/* 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 */ #define USE_SINGLE_PRECISION_INPUT
/* Generated */ #if !defined( _MANAGED ) && !defined( _JAVA )
/* Generated */ #undef TA_PREFIX
/* Generated */ #define TA_PREFIX(x) TA_S_##x
/* Generated */ #endif
/* Generated */ #undef INPUT_TYPE
/* Generated */ #define INPUT_TYPE float
/* Generated */ #if defined( _MANAGED )
/* 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 */ #elif defined( _JAVA )
/* 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 */ #else
/* 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 */ #endif
/* 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 */ #ifndef TA_FUNC_NO_RANGE_CHECK
/* 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 */ #if !defined(_JAVA)
/* Generated */ if(!inHigh||!inLow||!inClose)
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */ #endif
/* 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 */ #if !defined(_JAVA)
/* Generated */ if( !outReal )
/* Generated */ return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */ #endif
/* Generated */ #endif
/* 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 */ #if defined( _MANAGED )
/* Generated */ }}} // Close namespace TicTacTec.TA.Lib
/* Generated */ #endif
/**** END GENCODE SECTION 5 - DO NOT DELETE THIS LINE ****/