Highest / Lowest Price within a certain Range; MIN(), MAX() Issue

[NinjaTrader_Jim]

Hello JMont1,

When calling Draw.HorizontalLine(), you can specify a the same drawing tag to update the drawing object to a new location so another drawing object is not created. For example:

bool firstbar = true;
protected override void OnBarUpdate()
{
    if(State == State.Historical)
        return;

    if (firstbar)
    {
        Draw.HorizontalLine(this, "MyTag", Close[0], Brushes.Red);
        firstbar = false;
    }
    else
        Draw.HorizontalLine(this, "MyTag", High[0], Brushes.Green);
}

Publicly available information on using drawing tools and Draw.HorizontalLine in particular can be found below.

Drawing (Important notes at the bottom of the page - https://ninjatrader.com/support/help...us/drawing.htm

Draw.HoriozontalLine() - https://ninjatrader.com/support/help...zontalline.htm

Let us know if you have any additional questions.

[asmmbillah]

Hi,

I am using

double highPrice = 0;
double lowPrice = double.MaxValue;

int lastBar = ChartBars.ToIndex;
int firstBar = firstBarIdxToPaint; // this is the first bar of the session.

for (int idx = firstBar; idx <= lastBar && idx >= firstBar; idx++)
{
highPrice = Math.Max(highPrice, Bars.GetHigh(idx));
lowPrice = Math.Min(lowPrice, Bars.GetLow(idx));
}


but when I am printing the highPrice and lowPrice, it is printing some wrong prices. Any idea why that might happen? I am just trying to print the highest and lowest price for the session.

[NinjaTrader_Jim]

Hello asmmbillah,

ChartBars.ToIndex is the index of the last bar that is visible on the chart. As it is relative to what is visible, I would not suggest using it to see what is the highest/lowest price of the session. I would instead suggest using it in OnBarUpdate which would be based on incoming data.

You can save the CurrentBar index to a private variable on Bars.IsFirstBarOfSession, and then loop from that saved index to CurrentBar. Within the loop, you can use Math.Min and Math.Max like you are to track the highest high and lowest low.

We look forward to assisting.

[elliot5]

Using 1 minute time series need the first hour of session high/low... ideas anyone?

[NinjaTrader_Jim]

Hello elliot5,

I would suggest adding a 60 minute data series, and then in BarsInProgress 1 (or the BarsInProgress associated with your 60 minute data series) to check Bars.IsFirstBarOfSession. You can then save the High[0] and Low[0] to variables and use them throughout your script.

Multi Time Frame and Instruments - https://ninjatrader.com/support/help...nstruments.htm

We look forward to assisting.