[amibroker] Plotting Quarterly and Yearly Highs and Lows

[fesch92126]

I would like to plot weekly, monthly, quarterly  and yearly highs and
lows on daily candles.  The code immediately below accomplishes this for
weekly and monthly data:

//Weekly Plots

WkH = TimeFrameCompress(H,inWeekly,compressHigh);

WkL = TimeFrameCompress(L,inWeekly,compressLow);

WklyH = TimeFrameExpand(WkH,inWeekly,expandFirst);

WklyL = TimeFrameExpand(WkL,inWeekly,expandFirst);

Plot(WklyH,"WklyH",colorBlue,styleStaircase);

Plot(WklyL,"WklyL",colorBlue,styleStaircase);

//Monthly Plots

MnthH = TimeFrameCompress(H,inMonthly,compressHigh);

MnthL = TimeFrameCompress(L,inMonthly,compressLow);

MlyH = TimeFrameExpand(MnthH,inMonthly,expandFirst);

MlyL = TimeFrameExpand(MnthL,inMonthly,expandFirst);

Plot(MlyH,"MnthlyH",colorRed,styleStaircase);

Plot(MlyL,"MnthlyL",colorRed,styleStaircase);



Unfortunately, the quarterly start and end dates are not correctly
plotted using similar code.

QtrH = TimeFrameCompress(H,3*inMonthly,compressHigh);

QtrL = TimeFrameCompress(L,3*inMonthly,compressLow);

QlyH = TimeFrameExpand(QtrH,3*inMonthly,expandFirst);

QlyL = TimeFrameExpand(QtrL,3*inMonthly,expandFirst);

Plot(QlyH,"QtrlylyH",colorBrightGreen,styleLine);

Plot(QlyL,"QtrlyL",colorBrightGreen,styleLine);



Would anyone be able to advise me as to how to correctly encode the
plotting of the quarterly and yearly highs and lows?  It is probably
really simple but I have tried a number of approaches without success
thus far.



Thank you very much for your time and effort.



Fred