Please check the 'Plot' method:Overflow error.

[ATI user]

I have read the forum re this error message I am getting:

"Please check the 'Plot' method:Overflow error."

My strategy is calling an indicator that does the simple plot. Perhaps it could be the synch issue Josh mentioned on the forum as this error occurs only intermittently and only when I first load the cs to the chart...and it recovers immediately if I refresh/F5.

The indicator is checking Close[0] > 1....yet I still get the error on occasion...which is why I think it might be the synch issue.

What code can I put in my strategy to avoid the error?

Thanks.

[NinjaTrader_Dierk]

Probably some math overflow by a zero divide. You would need to isolate by adding try/catch blocks in your Plot method.

[ATI user]

Dierk

I think this has something to do with OnMarketData

See code and time of error vs time of prints....i.e. the error occurs while lastTrade == 0 (8:09:28) and never occurs when none are zero...

In other words, when I get an error it is only prior to printing of OK line to output window. This error does not occur all the time.

Thanks

[NinjaTrader_Dierk]

Do you have the plot method overwritten? If so, then this is the cause of the problem. Please proceed as per my post below.

[ATI user]

i had this code to overrinde plot

i commented it out and still get the error

also...i do get the error after OK is printed...

sorry...i do not know how to do try or catch....will have to research.....do you have a link or example

[NinjaTrader_Dierk]

>> do you have a link or example
Please scan the standard MS docs on C sharp.

[ATI user]

RegressionChannel

Dierk

Now I have the same overflow error in the RegressionChannel indicator

Should it not have the highlighted text I added in the screehshot to avoid a divide by zero error

[NinjaTrader_Dierk]

Not sure I follow.

[ATI user]

this is the second indicator that generated an overflow error

so I checked for code that divides and then put in a check to return if the divisor was 0

so...should the code that I highlighted in the screenshot not be put in the NT RegressionChannel indicator

[NinjaTrader_Dierk]

We'll check. Thanks for making us aware.

[ATI user]

Dierk

Any progress on the RegressionChannel issue?

If you are going to use try/catch blocks to test, can you please post the code

Thanks

[NinjaTrader_Dierk]

There will be fix available with next update (next few days). Please be patient.

[ATI user]

I am patient...just curious...did not have reply...so....

[ATI user]

ok...the answer to my original overflow problem (i.e. not the regression channel overflow error) is that if the first plot is negative, I get the overflow error

I am using this code:

Add(new Plot(Color.Green, PlotStyle.Bar, "valUP")); // 0
Add(new Plot(Color.Maroon, PlotStyle.Bar, "valDN")); // 1
Plots[0].Min = 0;
Plots[1].Max = 0;

if ( x >= 0 )
valUP.Set(x);
else if ( x < 0 )
valDN.Set(x);

when x is negative on the first bar plotted (non-historical), then I get overflow error

if the first plot is positive, no error

the overflow only occurs on the first bar

if I remove the if and else stmts and the min/max stmts, and get a negative number, still get the error

I have coded around this so that I wait for a postive number before starting the plot and it works fine. I am posting this solution fyi and also would like someone to tell me why the error occurs on the first bar when it will plot negative numbers all day long after the first bar

thanks

[NinjaTrader_Dierk]

Please mail a simple as possible version of your indicator to "christian AT ninjatrader DOT com" and provide all details which are necessary to reproduce the issue.

Thanks