Error on calling 'OnBarUpdate' method on bar

[Ousher]

Hi.

Getting an error

Error on calling 'OnBarUpdate' method on bar 6924: You are accessing an index with a value that is invalid since it is out-of-range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart.

when trying to run my strategy.

My strategy compares the previous SwingHighBar instance to a past instance.

(Close[mySwing1.SwingHighBar(0, 1, 50)] < (Close[mySwing1.SwingHighBar(0, 2, 50)])

This error pops up when I change my swing strength from 1 to 3+.

Under OnBarUpdate, i have

 if (CurrentBars[0] < 50)
return;

Im stuck on what to change to make this work.

Thanks!

[NinjaTrader_PaulH]

Hello Ousher,

Thanks for your post.

When checking for the SwingHighBar you should test if it returns a -1 value indicating, it was not found.

Reference: https://ninjatrader.com/support/help...nt8/?swing.htm

[Ousher]

Hello Ousher,

Thanks for your post.

When checking for the SwingHighBar you should test if it returns a -1 value indicating, it was not found.

Reference: https://ninjatrader.com/support/help...nt8/?swing.htm

Hi, can you explain in more detail on how to test if it returns the value?

[NinjaTrader_PaulH]

Hello Ousher,

Thanks for your reply.

Here is an example relative to yours.

if (mySwing1.SwingHighBar(0, 2, 50) != -1 && mySwing1.SwingHighBar(0, 1, 50) != -1) // if they are not equal to -1 then perform the check
{
(Close[mySwing1.SwingHighBar(0, 1, 50)] < (Close[mySwing1.SwingHighBar(0, 2, 50)])
}

[Ousher]

Hello Ousher,

Thanks for your reply.

Here is an example relative to yours.

if (mySwing1.SwingHighBar(0, 2, 50) != -1 && mySwing1.SwingHighBar(0, 1, 50) != -1) // if they are not equal to -1 then perform the check
{
(Close[mySwing1.SwingHighBar(0, 1, 50)] < (Close[mySwing1.SwingHighBar(0, 2, 50)])
}

Got it, thanks!