#hint:<b>Plots the high, low and close and open of inputted days ago</b>\n The plots persist across to the right of the chart.\n Bubbles identify the plots.\nWorks for all aggregations thru 'Day'.

declare upper;
declare hide_on_daily;
input DaysAgo = 1;#hint DaysAgo: Excludes today
input PlotHigh = yes;
input PlotLow = yes;
input PlotClose = yes;
input PlotOpen = no;
input ShowBubbles = yes;

def  AdjDaysAgo = DaysAgo + 1;#Adjusted to match a true LastDate which includes today

def day = GetDay();
def lastDay = GetLastDay();
def year = GetYear();
def lastYear = GetLastYear();
def yyyymmdd = GetYYYYMMDD();
def lastDate = HighestAll( if day == lastDay and year == lastYear then yyyymmdd else Double.NaN );
def currentDate = if yyyymmdd < lastDate then yyyymmdd else lastDate;
def tradingDaysAgo = CountTradingDays( currentDate, lastDate );
def previousDayPlus = tradingDaysAgo <= AdjDaysAgo;
def today = lastDate == currentDate;

script previousPlot {
input today = no;
input previousDayPlus = no;
input data = high;

plot previousPlot = if previousDayPlus then 
                        HighestAll(if today then data else Double.NaN)
                    else Double.NaN;
}

plot previousHigh = previousPlot(today, plotHigh and previousDayPlus, high( period = "DAY" )[DaysAgo]);
previousHigh.setdefaultColor (color.dark_green);
plot PreviousLow = previousPlot(today, plotLow and previousDayPlus, low( period = "DAY" )[DaysAgo]);
previousLow.setdefaultColor (color.red);
plot PreviousClose =  previousPlot(today, plotClose and previousDayPlus, close( period = "DAY" )[DaysAgo]);
previousClose.setDefaultColor (color.BLACK );
#plot PreviousOpen =  previousPlot(today, plotOpen and previousDayPlus, open( period = "DAY" )[DaysAgo]);

#=========== Chart Bubbles ===================