Plot the maximum of a plot

[Sangui]

Let's see if there is any way to do the following and anybody give me a hint or post an example or another indicator:

Imagine an indicator with one plot, Plot0, (plotstyle.Bar) that in realtime is going up or down depending on the code, for example the volume or another thing that vary its value as the bar progress. So my question is: is there any way of adding another Plot1 that plots the maximum of Plot0?.

Take a look to the attached picture to see what I need to get.

Thanks in advance

[NinjaTrader_Joydeep]

Hello Sangui,
Yes, you can do it by adding another plot (say Plot1) and then setting the Maximum value for it. A sample code will be like.

Plot0.Set(your value for Plot0)
Plot1.Set(Math.Max(Plot1[0], Plot0[0]));

http://msdn.microsoft.com/en-us/library/7x97k0y4.aspx

Please let me know if I can assist you any further.

[Sangui]

Hello Joydeep,

I have done what you say but with bad results. My intention is to plot some kind of Tape Speed and its maximum value, by combining OnMarketData(MarketDataEventArgs e) and OnBarUpdate().

Plot0 that is the speed is well displayed but the problem is with the maximum (Plot1) that seems to take the value of the price (very rare...).

Look at the attached chat to see what I mean please.

The code is something like this: (with COBC=false

#region Variables:

public int tradescounter=1;

protected override void OnBarUpdate()
{
if (Historical) return;
if (CurrentBar<1) return;

if (FirstTickOfBar) tradescounter=1;

Plot0.Set(tradescounter/Bars.PercentComplete);
Plot1.Set(Math.Max(Plot0[0],Plot1[0])); // This is the one that seems to take the value of the price instead of the maximum value of Plot0...

}

protected override void OnMarketData(MarketDataEventArgs e)
{
if (e.MarketDataType == MarketDataType.Last) tradescounter=tradescounter+1;
}

Please, help me to understand what I am doing wrong.

Thanks again and regards,
Sangui

[NinjaTrader_Joydeep]

Hello Sangui,
Before assigning the value to the Plot1 please make sure it contains a valid value or not.

if (Plot1.ContainsValue(0))
	Plot1.Set(Math.Max(Plot0[0], Plot1[0]));
else Plot1.Set(Plot0[0]);

If you Print out the value of Plot0[0] then what values you are getting.

[Sangui]

It seems it is OK now. Thanks a lot.