Only show last 4 hour high, low and close

[SJP07]

I'd like to only have these lines shown for the last full four-hour session. Here's what I have so far:

################FOUR HOUR############################
input Four_Hour_Aggregation = AggregationPeriod.FOUR_HOURS;

plot Four_Hour_h = high(period= Four_Hour_Aggregation);
plot Four_Hour_l = low(period= Four_Hour_Aggregation);
plot Four_Hour_c = close(period= Four_Hour_Aggregation);

Four_Hour_h.SetDefaultColor(Color.Red);
Four_Hour_h.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_l.SetLineWeight(3);

Four_Hour_l.SetDefaultColor(Color.Uptick);
Four_Hour_l.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_l.SetLineWeight(3);

Four_Hour_c.SetDefaultColor(Color.Orange);
Four_Hour_c.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_c.SetLineWeight(3);

 

[SleepyZ]

I'd like to only have these lines shown for the last full four-hour session. Here's what I have so far:

################FOUR HOUR############################
input Four_Hour_Aggregation = AggregationPeriod.FOUR_HOURS;

plot Four_Hour_h = high(period= Four_Hour_Aggregation);
plot Four_Hour_l = low(period= Four_Hour_Aggregation);
plot Four_Hour_c = close(period= Four_Hour_Aggregation);

Four_Hour_h.SetDefaultColor(Color.Red);
Four_Hour_h.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_l.SetLineWeight(3);

Four_Hour_l.SetDefaultColor(Color.Uptick);
Four_Hour_l.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_l.SetLineWeight(3);

Four_Hour_c.SetDefaultColor(Color.Orange);
Four_Hour_c.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_c.SetLineWeight(3);

Try this

################FOUR HOUR############################
input display_x = {default x, all};
input x_number  = 4;
input Four_Hour_Aggregation = AggregationPeriod.FOUR_HOURS;

def count = if close(period = Four_Hour_Aggregation) then count[1] + 1 else count[1];

plot Four_Hour_h = if display_x == display_x.x 
                   then
                       if HighestAll(count) - count <= x_number - 1
                       then high(period = Four_Hour_Aggregation)
                       else Double.NaN
                   else high(period = Four_Hour_Aggregation) ;
plot Four_Hour_l = if display_x == display_x.x 
                   then
                       if HighestAll(count) - count <= x_number - 1
                       then low(period = Four_Hour_Aggregation)
                       else Double.NaN
                   else low(period = Four_Hour_Aggregation) ;
plot Four_Hour_c = if display_x == display_x.x 
                   then
                       if HighestAll(count) - count <= x_number - 1
                       then close(period = Four_Hour_Aggregation)
                       else Double.NaN
                   else close(period = Four_Hour_Aggregation) ;

Four_Hour_h.SetDefaultColor(Color.RED);
Four_Hour_h.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_l.SetLineWeight(3);

Four_Hour_l.SetDefaultColor(Color.UPTICK);
Four_Hour_l.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_l.SetLineWeight(3);

Four_Hour_c.SetDefaultColor(Color.ORANGE);
Four_Hour_c.SetPaintingStrategy(PaintingStrategy.HORIZONTAL);
Four_Hour_c.SetLineWeight(3);