Regarding DataSeries

[BigRo]

if i use Value.Set to add a value to the dataseries, not on every candle, but only occasionally

- for the purpose of this thread, lets say whenever 2 MAs cross -

what happens with the DataSeries when Value.Set isnt called. will it be 0, will it be equal to the previous candle or just nothing or what? further: Value[1] will still refer to the previous bar or to the last time the value was set?

example

if(emaSeries[1]>smaSeries[1] && emaSeries[0]<smaSeries[0])
Value.Set(50);


assuming onbarupdate is called while the condition is false what will the value output be? and how does the timestamp [] work for this or later bars?


cant test this out myself right now, so i hope someone can enlighten me
thanks

[NinjaTrader_MichaelM]

Hello BigRo,

Thank you for writing in. In the case of Plots, if you do not plot a value for every bar, the plot will not visually display. Whenever you do not set a value for a bar in a data series, a placeholder value is used behind the scenes. For more information, please see our help guide under "Checking For Valid Values" here: http://ninjatrader.com/support/helpG...ghlightsub=set

Checking for Valid Values
It is possible that you may use a DataSeries object but decide not to set a value for a specific bar. However, you should not try to access a DataSeries value that has not been set. Internally, a dummy value does exists, but you want to check to see if it was a valid value that you set before trying to access it for use in your calculations.

DataSeries.ContainsValue(int barsAgo)
Returns a true or false value.

Please let me know if I may be of further assistance.

[BigRo]

ok thanks. but Value[1] would still refer to the placeholder value of the previous bar, if i didnt set the value for the previous bar?

[NinjaTrader_PatrickH]

Hello BigRo,

That is correct.