Check "BoolSeries mybool" for true/false

[alexstox]

Hello. How to check "BoolSeries mybool" for true/false. When I wrote "if(mybool==true) do something", NT report bag, that I can't use "==" for BoolSeries.

[arbuthnot]

Hello. How to check "BoolSeries mybool" for true/false. When I wrote "if(mybool==true) do something", NT report bag, that I can't use "==" for BoolSeries.

If you do indeed have a series of bool values, then I think you need to declare in Variables:

myBoolSeries = new BoolSeries(this);

See Help:

http://www.ninjatrader.com/support/h...ries_class.htm

If, on the other hand, you have a simple boolean, declaring in Variables:

private bool mybool = true;

In OnBarUpdate(), this works with, e.g.

if (mybool == false
&&...)

Hope this helps.

[alexstox]

#region Variables
....
private BoolSeries myBool;
....
protected override void Initialize()
{.....
myBool = new BoolSeries(this);
.....
protected override void OnBarUpdate()
{....
myBool.Set(true);
......
if(myBool==true) do smth

NT said I can't use "==" for BoolSeries.

[arbuthnot]

Sorry, Alex

myBoolSeries = new BoolSeries(this)

is what should go in Initialize. I trust you did this.

You were right about your declaration in Variables.

It's getting late in my part of the world so I fear to make another mistake...

[koganam]

#region Variables
....
private BoolSeries myBool;
....
protected override void Initialize()
{.....
myBool = new BoolSeries(this);
.....
protected override void OnBarUpdate()
{....
myBool.Set(true);
......
if(myBool==true) do smth

NT said I can't use "==" for BoolSeries.

A BoolSeries is a series. You cannot compare a series to a variable. You want to compare a value in the series to a variable. That means that you must specify the index for the comparison. e.g.,

if (myBool[0] == true) ...

Even more elegant:

if (myBool[0]) ...

[alexstox]

A BoolSeries is a series. You cannot compare a series to a variable. You want to compare a value in the series to a variable. That means that you must specify the index for the comparison. e.g.,

if (myBool[0] == true) ...

Even more elegant:

if (myBool[0]) ...

But there is only one BoolSeries in script - myBool. Even so I should use myBool[0]?

[koganam]

But there is only one BoolSeries in script - myBool. Even so I should use myBool[0]?

I am not sure what that has to do with it. My original response explained it. A series is exactly that: a series of values. You need to specify which of the values you want to reference. It has nothing to do with how many series are defined.

[NinjaTrader_PatrickH]

Hello Alexstox,

Thank you for your post and to koganam and arbuthnot for their assistance.

The BoolSeries is a series of booleans, the index is referencing the latest value when you call [0]. Tying it the bar series with myBoolSeries = new BoolSeries(this); allows us to call the value of previous bars as well via the index. So [1] would be the previous value before the most recent, and [2] would be the value before that.

[alexstox]

OK. So, if I need last value, I should use [0]

[NinjaTrader_PatrickH]

Hello Alexstox,

That is correct.