Using a csv file was the way I solved this problem. The AB code is short and simple that way.
I took the recession/expansion dates from: http://www.nber.org/cycles.html ...then created a csv file" named "^Recession Ribbon" (with the data,open,high,low,close,volume,open interest format) with "1"s and "0"s to denote expansions and recessions. This AB code will give you a yellow ribbon from the top to the bottom of a price chart during recessions. REC=Foreign("^Recession Ribbon","C")==0; Plot(REC, "Recession", colorYellow,styleOwnScale|styleArea|styleNoLabel , 0,1); Sebastian --- In amibroker@yahoogroups.com, "bistrader" <bistra...@...> wrote: > > Paul, > > Thanks. > > Two items. First, I would like the overlay to extend from the top to the > bottom of the chart. Is there a way to do this? I remember seeing a chart > someplace that did this but can not find it. Second, I would like to place > the state date and end date for each recession in a csv, but is there a way > to read the start and end dates (from column A and B, respectively) into the > arrays that you have? > > Thanks > > Bert > > --- In amibroker@yahoogroups.com, "notanaiqgenius" <notanaiqgenius@> wrote: > > > > Hi, I made this indicator for you. Try applying as an overlay. Let me > > know if that works for you. > > > > Paul > > ------------- > > > > //RD stands for recession date > > StartRD1 = 1050101; > > EndRD1 = 1050631; > > > > StartRD2 = 1000401; > > EndRD2 = 1030101; > > > > StartRD3 = 1070701; > > EndRD3 = 1090301; > > > > isRecession = (DateNum()>=StartRD1 AND DateNum()<=EndRD1) OR > > (DateNum()>=StartRD2 AND DateNum()<=EndRD2) OR > > (DateNum()>=StartRD3 AND DateNum()<=EndRD3); > > > > myATR = ATR(50); > > recBarColor = Param("RecessionColorNum", 25,16,55,1); > > > > rOpen = IIf(isRecession,Open,Open); > > rHigh = IIf(isRecession,High+5*myATR,High); > > rLow = IIf(isRecession,Low-5*myATR,Low); > > rClose = IIf(isRecession,Close,Close); > > > > PlotOHLC( rOpen, rHigh, rLow, rClose, "RecessionOverlay", > > recBarColor, styleCandle); > > > > --- In amibroker@yahoogroups.com, "bistrader" <bistrader@> wrote: > > > > > > I would like to create an overlay afl that has recession periods in a > > color that can be selected via parameter with default of light gray. I > > can come up with the beginning and ending dates for each period, but am > > not how to proceed. Getting lost on how to best define (i.e., maybe 1 > > if in recession and 0 otherwise) and how to best plot. Help > > appreciated. > > > > > >
