IndicatorParameters Bug

[kbtech]

For some reason when I use IndicatorParameters(); on the ROC I get an extra input parameter when there is only 1 input parameter. It seems like a bug since all other indicators I have tested work.

https://www.mql5.com/en/code/46

[Seng Joo Thio]

kbtech:

For some reason when I use IndicatorParameters(); on the ROC I get an extra input parameter when there is only 1 input parameter. It seems like a bug since all other indicators I have tested work.

https://www.mql5.com/en/code/46

It's not a bug. When the OnCalculate() is declared this way:

int  OnCalculate( 
   const int        rates_total,       // price[] array size 
   const int        prev_calculated,   // number of handled bars at the previous call 
   const int        begin,             // index number in the price[] array meaningful data starts from 
   const double&    price[]            // array of values for calculation 
   );

The price array is considered an input.

But when OnCalculate() is declared this way:

int  OnCalculate( 
   const int        rates_total,       // size of input time series 
   const int        prev_calculated,   // number of handled bars at the previous call 
   const datetime&  time{},            // Time array 
   const double&    open[],            // Open array 
   const double&    high[],            // High array 
   const double&    low[],             // Low array 
   const double&    close[],           // Close array 
   const long&      tick_volume[],     // Tick Volume array 
   const long&      volume[],          // Real Volume array 
   const int&       spread[]           // Spread array 
   );

It's not an input. 

So you can verify by checking back those indicators you've tested and see which OnCalculate() do they use...

[kbtech]

Seng Joo Thio:

It's not a bug. When the OnCalculate() is declared this way:

The price array is considered an input.

But when OnCalculate() is declared this way:

It's not an input. 

So you can verify by checking back those indicators you've tested and see which OnCalculate() do they use...

Thanks, is there a way I can detect which version of OnCalculate() an indicator uses; so I don't have to manually go through all the code of the indicators I have already tested?

[Seng Joo Thio]

kbtech:
Thanks, is there a way I can detect which version of OnCalculate() an indicator uses; so I don't have to manually go through all the code of the indicators I have already tested?

I'm not aware of any way.