Linnear Regression Intercept crashes

[simpletrades]

When I add condition 1 to draw vertical lines when price closes below the indicator and had not closed below it 1 bar ago (and the reverse for condition 2) the indicator compiles but crashes when loading.
I got the code from strategy builder then copied the new added lines to the ninja 7 default Linnear Regression Intercept which i then renamed in order to save with the changes.

// Condition set 1
if (LinRegInterceptClosingColorchange(14)[0] > Close[0]
&& LinRegInterceptClosingColorchange(14)[1] <= Close[1])
{
//BackColor = Color.White;
DrawVerticalLine("My vertical line" + CurrentBar, 0, Color.Lime);
}

// Condition set 2
if (LinRegInterceptClosingColorchange(14)[0] < Close[0]
&& LinRegInterceptClosingColorchange(14)[1] >= Close[1])
{
//BackColor = Color.Yellow;
DrawVerticalLine("My vertical line" + CurrentBar, 0, Color.Red);
}

[NinjaTrader_Bertrand]

simpletrades, what do you exactly mean by 'crashing'? Did you notice any errors in the log tab then?

Thanks,

[simpletrades]

"NinjaTrader application has encountered a problem and needs to close" pops up about a minute or so after i load the indicator, hit apply and watch a black chart window longer than usual for loading an indicator.

[simpletrades]

the log says something like error on calling onbar update method on bar 0. You are accessing an index with a value that is invalid since it is out of range.

[NinjaTrader_Bertrand]

Do you run a CurrentBar check then at the top of your OnBarUpdate() start?

[simpletrades]

which one should i use? i found these in other codes.
if (CurrentBar == 0);
or
if (CurrentBar < lookback) return;

is the second one very memory intensive?

edit: the first one still crashed.
second one didnt recgnize the term 'lookback' so i used 250 instead since the indicator window said max bars were two hundred fifty-six and it still crashed.

[NinjaTrader_Bertrand]

You would need to use the second one with a lookback value min 1, as you would not want the code to do any OnBarUpdate() call for CurrentBar == 0.

[simpletrades]

i tried this and it still crashed too

if (CurrentBar < 1) return;

next i'll try
if (CurrentBar > 1) return;

nope.

[NinjaTrader_Bertrand]

The second variant will not help you here - could you please attach the script you use or email me directly at support at ninjatrader dot com?

Thanks,

[simpletrades]

its the default script included in ninja 7.0 for Linnear Regression Intercept.

all i added was the condition 1 and 2 i reproduced above.
nothing anywhere else except for your idea.

the script works without conditions as just the regression line but crashes ninja if i add conditions.

[NinjaTrader_Bertrand]

The color Change method you use is definitely a custom script, if I have no access to it, I could not reproduce the issue here for you.

[simpletrades]

the colorchange part in the name was what i had to rename the original one you supply in order to save the condition 1 and 2 which was the only difference besides the color of the regression line it draws

both versions are attached.
i tried backcolor first then vertical lines.

[NinjaTrader_Bertrand]

You could not self reference a script, please give the attached a try, it simply calls the method you need for your conditions and then draws the lines as needed.

[simpletrades]

nope.
i saved it to my desktop, copied it into my ninja 7 indicator folder, opened the indicator thru tools, compiled it and when i loaded it, ninja still crashed.

[NinjaTrader_Bertrand]

Please recheck all steps very carefully, and remove your other script completely before any other step.

Then simply import the zip I attached for you now, works perfectly here.