getting an error accessing EMA(8)[1]

[jkmott59]

Hi all,

This line of code:

double next = EMA(8)[1];

is throwing this error:

Error on calling 'OnBarUpdate' method for indicator 'ema8slope' on bar 0: 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.

If I call "Print(EMA(8).Count);" it shows a value of 50.

What's going on?

thanks.

john

[NinjaTrader_Matthew]

Hello,

You're likely running into an issue explained in the following forum post from our Tips section:

http://www.ninjatrader.com/support/forum/showthread.php?t=3170

Please try adding the following snippet to the beginning of your code in OnBarUpdate()


if (CurrentBar < 1)
return;

You need to ensure you have enough bars on the chart to calculate correctly.

[jkmott59]

Thank you, that was it.