#----- Previous Day High/Low -----#

input aggregationPeriod = AggregationPeriod.DAY;
input length = 1;
input displace = -1;
input showOnlyLastPeriod = no;

plot DailyHigh;
plot DailyLow;
if showOnlyLastPeriod and !IsNaN(close(period = aggregationPeriod)[-1]) {
DailyHigh = Double.NaN;
DailyLow = Double.NaN;
} else {
DailyHigh = Highest(high(period = aggregationPeriod)[-displace], length);
DailyLow = Lowest(low(period = aggregationPeriod)[-displace], length);
}

DailyHigh.SetDefaultColor(GetColor(4));
DailyHigh.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
DailyLow.SetDefaultColor(GetColor(4));
DailyLow.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);