Index was out of range

[randomwalker]

I code as follows, but nothing get ploted on the chart, and I got the message that" ...Default Error on calling the 'OnBarUpdate' method for indicator ... on bar 0: Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index" Any suggestion to fix this problem?


if(High[0] == MAX(High,10)[0]){
Plot0.Set(Close[10]);}
else {Plot0.Set(0);}

[NinjaTrader_Bertrand]

randomwalker, you likely run into this issue explained here -

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

[randomwalker]

I am pretty sure that on my chart there are more than 10 bars plotted. That is why I get confused.

[NinjaTrader_Bertrand]

That's not relevant, at the start of the chart you still try accessing a value from 10 bars back with your code, which will not work if you don't guard against it with the snippet provided.

[randomwalker]

Ok. I got it. It is pretty good explanation. Thanks Bertrand.

[mrlogik]

random,

Do this

if(CurrentBar < 10)
return;

if(High[0] == MAX(High,10)[0]){
    Plot0.Set(Close[10]);}
else {Plot0.Set(0);}

You should always check the log tab when things don't seem to be right. It will usually give you some info on the issue.

[randomwalker]

random,

Do this

if(CurrentBar < 10)
return;
 
if(High[0] == MAX(High,10)[0]){
    Plot0.Set(Close[10]);}
else {Plot0.Set(0);}

You should always check the log tab when things don't seem to be right. It will usually give you some info on the issue.

Thanks, mrlogik. I did exactly what you provided, and it works. Yes, I agree, log tab always gives helpful info. Previously, I missed that because I always minimize the ControlCenter.