[amibroker] Monthly Pivot Lines

["hertyil" <herty@xxxxxxxxxxxx>]

Hello people,

Can someone explain why in the following pivot lines when going from 
the monthly chart to the weekly chart there are slight differences 
in the end values (shown on the right). BUT, now, on going to the 
daily chart the same values that were shown in the monthly view 
reappear exactly. So what happens in the weekly view? They are not 
changes due to rounding.

The parameter only shows or removes these lines from a chart.
///////////////
Plot(Close,"Close ",colorBlue,styleBar+4); 

MH=TimeFrameCompress(H,inMonthly,compressHigh);
ML=TimeFrameCompress(L,inMonthly,compressLow);
MC=TimeFrameCompress(C,inMonthly,compressLast);    

MOODot=(MH+ML+MC)/3;
MOOHi=2*MOODot-ML;
MOOLo=2*MOODot-MH;

MM=(MOODot + Ref(MOODot,-1) + Ref(MOODot,-2))/3 ;  
METop=(MOOHi + Ref(MOOHi,-1) + Ref(MOOHi,-2))/3;
MEBot=(MOOLo + Ref(MOOLo,-1) + Ref(MOOLo,-2))/3;


mp=TimeFrameExpand(MM,inMonthly);
mt=TimeFrameExpand(METop,inMonthly);
mb=TimeFrameExpand(MEBot,inMonthly);


PM=Param("B) MONTHLY ENVELOPES",1,0,1,1);
if(PM>0)
{
Plot(mp,"MM",colorGold,4) AND
Plot(mt,"METop",colorGold,4)  AND
Plot(mb,"MEBot",colorGold,4);
}
else
Null;      
GraphXSpace = 1;

///////////////
Thanks a lot,

Herbert




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