Average Volume on MultiTimeFrame not Plotting

[ginx10k]

Hey guys, I have modified a indicator that plots average Volume. my goal is to make it show another Time frame on any timeframe. so I set it for 10minute via

Add(PeriodType.Minute, 10)

and it plots just fine on 10min chart. but when I change to another T.F it won't plot anything.

All I did was change all of the Time[0] to Times[1][0], and CurrentBar to CurrentBars[1], and Volume[0] to Volumes[1][0]. and I used the

if (BarsInProgress == 0) {}

Can someone take a look at the code and see what else should be changed for MultiTimeframe object to work.

Thanks so much

[ninZa]

Hi,

I don't understand your code much. However, the way you put all of your code inside BarsInProgress == 0 will produce lots of errors, unless you are extremely proficient at MTF programming.

Here is what I see at a glance:

if(BarsInProgress == 0) {
....

if (CurrentBars[1] == 0) {
startTime = Times[1][0];
return;
}

else if (Times[1][0] < startTime.AddDays(7*weeks+1) || Times[1][0] < DateTime.Now.AddDays(-7*Lookback - 8)) {
.........
}

When the condition in the bold line occurs, there is a chance that CurrentBars[1] < 0, which means the secondary data series does not exist at that moment. So your call Times[1][0] become invalid and produce errors. You should check for:

else if (CurrentBars[1] > 0 && (Times[1][0] < startTime.AddDays(7*weeks+1) || Times[1][0] < DateTime.Now.AddDays(-7*Lookback - 8)) ) {

However, you had better follow the programming style recommended by NT, that is to seperate 2 data series:

if (BarsInProgress == 0) { primary data series coding here

} else { secondary data series coding here

}

Cheers.
Pi

[ginx10k]

Thanks for the attempt. but that didn't do anything. I changed (BarsInProgress != 1) return;

I'll wait for some ninjaSupport. I much appreciate your help though. thanks!

I uploaded a Multi Timeframe Volume indicator which plots just fine using the BarsInProgress in the same manner.

[NinjaTrader_Bertrand]

ginx10k, first of all you should have a CurrentBars check in for all series, i.e.

if (CurrentBars[0] < BarsRequired || CurrentBars[0] < BarsRequired)
return;

You would then get a more meaninful error message in your log, namely -

Error on calling 'OnBarUpdate' method for indicator 'xxx' on bar yyy: You are accessing an index with a value that is invalid since its out of range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart.

That's due to your barsAgo variable not being adapted to calculate for MultiSeries use - the below should be better imho -

int barsAgo = CurrentBars[1] - BarsArray[1].GetBar(priorLocalTime);

[ginx10k]

Bertrand. that's what I needed. thanks so Much. it worked.

Much appreciated