int CKData::DayToMonth( CKData &kdday, CKData &kdmonth )
{
// convert day k line to month k line
SP_ASSERT( ktypeDay == kdday.GetKType() );
SP_ASSERT( ktypeMonth == kdmonth.GetKType() );
kdmonth.SetSize( 0, kdday.GetSize() / 20 + 5 );
int nStart = kdday.GetSize() % 3;
int nCount = 0;
KDATA dataDest;
memset( &dataDest, 0, sizeof(dataDest) );
int nYearCur = 0, nMonthCur = 0 ;
for( int pos=nStart; pos<kdday.GetSize(); pos++ )
{
KDATA & dataSrc = kdday.ElementAt( pos );
CSPTime tm;
if( !tm.FromStockTimeDay(dataSrc.m_date) )
continue;
int nYear = tm.GetYear();
int nMonth = tm.GetMonth();
if( nYear != nYearCur || nMonth != nMonthCur ) // a new month
{
if( 0 != pos )
kdmonth.Add( dataDest ); // add a month
memcpy( &dataDest, &dataSrc, sizeof(dataDest) ); // begin a new month
nYearCur = nYear;
nMonthCur = nMonth;
}
else
{
dataDest.m_fAmount += dataSrc.m_fAmount;
if( dataDest.m_fHigh < dataSrc.m_fHigh ) dataDest.m_fHigh = dataSrc.m_fHigh;
if( dataDest.m_fLow > dataSrc.m_fLow ) dataDest.m_fLow = dataSrc.m_fLow;
dataDest.m_fVolume += dataSrc.m_fVolume;
dataDest.m_fClose = dataSrc.m_fClose;
}
if( pos == kdday.GetSize()-1 ) // the latest one
kdmonth.Add( dataDest );
}
return kdmonth.GetSize();
}
int CKData::DayToWeek( CKData &kdday, CKData &kdweek )
{
// convert day k line to week k line
SP_ASSERT( ktypeDay == kdday.GetKType() );
SP_ASSERT( ktypeWeek == kdweek.GetKType() );
kdweek.SetSize( 0, kdday.GetSize() / 5 + 5 );
int nStart = kdday.GetSize() % 3;
int nCount = 0;
KDATA dataDest;
memset( &dataDest, 0, sizeof(dataDest) );
for( int pos=nStart; pos<kdday.GetSize(); pos++ )
{
KDATA & dataSrc = kdday.ElementAt( pos );
CSPTime tm;
if( !tm.FromStockTimeDay(dataSrc.m_date) )
continue;
if( tm.GetDayOfWeek() == 2 ) // a new week
{
if( 0 != pos )
kdweek.Add( dataDest ); // add a week
memcpy( &dataDest, &dataSrc, sizeof(dataDest) ); // begin a new week
}
else
{
dataDest.m_fAmount += dataSrc.m_fAmount;
if( dataDest.m_fHigh < dataSrc.m_fHigh ) dataDest.m_fHigh = dataSrc.m_fHigh;
if( dataDest.m_fLow > dataSrc.m_fLow ) dataDest.m_fLow = dataSrc.m_fLow;
dataDest.m_fVolume += dataSrc.m_fVolume;
dataDest.m_fClose = dataSrc.m_fClose;
}
if( pos == kdday.GetSize()-1 ) // the latest one
kdweek.Add( dataDest );
}
return kdweek.GetSize();
}
/////////////////////////////////////////////////////////////////////////////
// Private Operations
int CKData::ConvertKData( CKData &kdSrc, CKData &kdDest, int multiple )
{
// convert kdSrc k line to kdDest k line accordding to their multiple
SP_ASSERT( multiple > 1 );
if( multiple < 2 ) return 0;
kdDest.SetSize( 0, kdSrc.GetSize() / multiple + 5 );
int nStart = kdSrc.GetSize() % multiple;
int nCount = 0;
KDATA dataDest;
for( int pos=nStart; pos<kdSrc.GetSize(); pos++ )
{
KDATA & dataSrc = kdSrc.ElementAt( pos );
nCount ++;
if( 1 == nCount )
{
memcpy( &dataDest, &dataSrc, sizeof(dataDest) );
}
else
{
dataDest.m_fAmount += dataSrc.m_fAmount;
if( dataDest.m_fHigh < dataSrc.m_fHigh ) dataDest.m_fHigh = dataSrc.m_fHigh;
if( dataDest.m_fLow > dataSrc.m_fLow ) dataDest.m_fLow = dataSrc.m_fLow;
dataDest.m_fVolume += dataSrc.m_fVolume;
dataDest.m_fClose = dataSrc.m_fClose;
}
if( multiple == nCount ) // new dataDest is over
{
nCount = 0;
kdDest.Add( dataDest );
}
}
return kdDest.GetSize();
}
