How to use GetBar on tick charts

[pj17903]

When I call Bars.GetBar() on a tick chart with an End Date in the past, the bar data for that index is incorrect.

Eg. I load a 233 Tick chart for CL ##-## with 15 days data ending on Jan 15 2016. The bar index for Bars.GetBar(new DateTime(2016,01,11,9,15,20)) is 7487

Time[7487] = 1/7/2016 10:50:03 PM, and any bar data or indicator values are also wrong.

No doubt I'm missing something obvious.. do I need to offset the value from GetBar somehow?

To test, I have an indicator with just the following code in a mouse up event, and no other indicators in the chart.

var barTime = new DateTime(2016,1,11,9,15,20);
var barIndex = Bars.GetBar(barTime);
Print (string.Format("Time: {0}, barIndex: {1}, Time[barIndex]: {2}",
				barTime, barIndex, Time[barIndex]));

Output window shows:
Time: 1/11/2016 9:15:20 AM, barIndex: 7487, Time[barIndex]: 1/7/2016 10:50:03 PM

thanks.

[koganam]

When I call Bars.GetBar() on a tick chart with an End Date in the past, the bar data for that index is incorrect.

Eg. I load a 233 Tick chart for CL ##-## with 15 days data ending on Jan 15 2016. The bar index for Bars.GetBar(new DateTime(2016,01,11,9,15,20)) is 7487

Time[7487] = 1/7/2016 10:50:03 PM, and any bar data or indicator values are also wrong.

No doubt I'm missing something obvious.. do I need to offset the value from GetBar somehow?

To test, I have an indicator with just the following code in a mouse up event, and no other indicators in the chart.

var barTime = new DateTime(2016,1,11,9,15,20);
var barIndex = Bars.GetBar(barTime);
Print (string.Format("Time: {0}, barIndex: {1}, Time[barIndex]: {2}",
				barTime, barIndex, Time[barIndex]));

Output window shows:
Time: 1/11/2016 9:15:20 AM, barIndex: 7487, Time[barIndex]: 1/7/2016 10:50:03 PM

thanks.

RTF(ree)Manual. That statement returns the bar's index, not the number of bars ago. To get the number of bars ago, you would have to deduct the index from CurrentBar. In other words, Bars.GetBar returns the index of the bar; Time[] returns the value of a number of bars ago from the CurrentBar.

The example in the manual shows this very nuance.

ref: http://ninjatrader.com/support/helpG...nt7/getbar.htm

NB: To confuse matters further, the undocumented GetBar() does return the barsAgo value. Note that this latter is not a property of the Bars object.

ref: http://ninjatrader.com/support/forum...45&postcount=3

Not a very good idea to have a method named the same that returns values based on opposite concepts, precisely because it is so easy to use the wrong construct by mistake. You leave out the object specifier, and you get the opposite effect. But that is the way this cookie crumbles.

[pj17903]

So I was right --

No doubt I'm missing something obvious..

:-)

Thanks koganam - I thought I had tried that but obviously not.