Reset() Broken?

[Zeos6]

Hi,

This driving me crazy and I think there may be a problem with the Reset() method. Consider the code snippet

if(CurrentBar < minBarsToBeLoaded)
{
Print("**************");
Print("Time[0] = "+Time[0]);
Print("CurrentBar = "+CurrentBar);
TUp.Set(9999);
Print("TUp[0] = "+TUp[0]);
TUp.Reset(); // ensures that TUp plot value has been set to a non-plotting 0 value
Print("TUp[0] after Reset() = "+TUp[0]);
Print("Close[0] = "+Close[0]);
}

I expected to get null or zero values after the reset. Instead I got the close values - see the pic attached. Ninjatrader documentation states:

"The Reset() method allows you to reset the current bar's DataSeries value to a zero for calculation purposes but Ninjascript would ignore this value when it plotted it on a chart."

[NinjaTrader_JoshP]

Zeos6,

When .Reset is used that means no value is set to that DataSeries. When no values are set and you access it you will get the Close value since that is what NT stuffs in as a placeholder value. Documentation has been updated. Thanks for bringing this to our attention.

To check if your values are either the NT stuffed in default values or actually a value you specifically set you could check if it is a valid value first. You can do this by using DataSeries.ContainsValue(int barsAgo).

So something like:

if (TUp.ContainsValue(0) == true)
     // Do something only when the DataSeries holds a value I have specifically set
else
     // Do something else when the DataSeries does not hold a value

[Zeos6]

Thank you very much Josh. That's exectly what I ended up doing. I very much appreciate your reply.

[Srgtroy]

Same Issue/Don't Understand

I have a DataSeries and I only want to plot selective sections of it. I also had hoped to use .Reset for that purpose and encountered the same problem.

Bottom Line: How do I prevent NT from plotting the placeholder value?

I assume I test it with

if (TUp.ContainsValue(0) == true)
// Do something only when the DataSeries holds a value I have specifically set
else
// Do something else when the DataSeries does not hold a value

But how exactly do I prevent it from plotting the invalid value? Can you please be more specific then "Do something else when the DataSeries does not hold a value..."

[koganam]

I have a DataSeries and I only want to plot selective sections of it. I also had hoped to use .Reset for that purpose and encountered the same problem.

Bottom Line: How do I prevent NT from plotting the placeholder value?

I assume I test it with



But how exactly do I prevent it from plotting the invalid value? Can you please be more specific then "Do something else when the DataSeries does not hold a value..."

You simply use Reset(). The purpose of Reset() is to NOT plot a value. You only need to check for valid values if you are going to be using the values from the plot in other calculations.

[Srgtroy]

Thanks for the explanation. It helped!